WO2015112182A1 - Événement de maïs dp-032218-9 et procédés de détection de celui-ci - Google Patents

Événement de maïs dp-032218-9 et procédés de détection de celui-ci Download PDF

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Publication number
WO2015112182A1
WO2015112182A1 PCT/US2014/032526 US2014032526W WO2015112182A1 WO 2015112182 A1 WO2015112182 A1 WO 2015112182A1 US 2014032526 W US2014032526 W US 2014032526W WO 2015112182 A1 WO2015112182 A1 WO 2015112182A1
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Prior art keywords
seq
event
dna
corn
maize
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PCT/US2014/032526
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English (en)
Inventor
Mary Beatty
Ken BRINK
Virginia Cox CRANE
Scott Diehn
Albert Laurence Lu
Gregory J. YOUNG
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Pioneer Hi-Bred International, Inc.
E.I. Dupont De Nemours & Company
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Priority claimed from PCT/US2014/013007 external-priority patent/WO2014116989A1/fr
Application filed by Pioneer Hi-Bred International, Inc., E.I. Dupont De Nemours & Company filed Critical Pioneer Hi-Bred International, Inc.
Priority to BR112016017228A priority Critical patent/BR112016017228A2/pt
Priority to US15/113,626 priority patent/US20170204473A1/en
Publication of WO2015112182A1 publication Critical patent/WO2015112182A1/fr
Priority to US16/167,630 priority patent/US20190040413A1/en

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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09—Recombinant DNA-technology
    • C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
    • C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
    • C12N15/8261—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield
    • C12N15/8271—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance
    • C12N15/8274—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for herbicide resistance
    • C12N15/8277—Phosphinotricin
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09—Recombinant DNA-technology
    • C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
    • C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
    • C12N15/8261—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield
    • C12N15/8271—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance
    • C12N15/8279—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for biotic stress resistance, pathogen resistance, disease resistance
    • C12N15/8286—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for biotic stress resistance, pathogen resistance, disease resistance for insect resistance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/146—Genetically Modified [GMO] plants, e.g. transgenic plants

Definitions

  • Embodiments of the present disclosure relate to the field of plant molecular biology, specifically embodiment of the disclosure relate to DNA constructs for conferring insect resistance to a plant. Embodiments of the disclosure more specifically relate to insect resistant corn plant event DP-032218-9 and to assays for detecting the presence of corn event DP-032218-9 in a sample and compositions thereof.
  • Corn is an important crop and is a primary food source in many areas of the world. Damage caused by insect pests is a major factor in the loss of the world's corn crops, despite the use of protective measures such as chemical pesticides. In view of this, insect resistance, via heterologous genes, has been introduced into crops such as corn in order to control insect damage and to reduce the need for traditional chemical pesticides.
  • heterologous genes in plants is known to be influenced by their location in the plant genome and will influence the overall phenotype of the plant in diverse ways. For this reason, it is common to produce hundreds to thousands of different events and screen those events for a single event that has desired transgene expression levels, patterns, and agronomic performance sufficient for commercial purposes.
  • An event that has desired levels or patterns of transgene expression can be used for introgressing the transgene into other genetic backgrounds by sexual outcrossing using conventional breeding methods. Progeny of such crosses maintain the transgene expression characteristics of the original transformant. This strategy is used to ensure reliable gene expression in a number of varieties that are well adapted to local growing conditions.
  • SUMMARY Embodiments of this disclosure relate to methods for producing and selecting an insect resistant monocot crop plant. More specifically, a DNA construct is provided that when expressed in plant cells and plants confers resistance to insects. According to one aspect of the disclosure, a DNA construct, capable of introduction into and replication in a host cell, is provided that when expressed in plant cells and plants confers insect resistance to the plant cells and plants.
  • Maize event DP-032218-9 was produced by transformation with plasmid PHP36676. This event contains a cry2A.127, cry1A.88, Vip3Aa20, and mo-pat gene cassettes, which confer resistance to certain lepidopteran and coleopteran pests, as well as tolerance to phosphinothricin.
  • the first cassette contains the cry2A.127 gene encoding the Cry2A.127 protein that has been functionally optimized using DNA shuffling techniques and based on genes derived from Bacillus thuringiensis subsp. kurstaki.
  • the 634-residue protein produced by expression of the cry2A.127 sequence is targeted to maize chloroplasts through the addition of a 54-amino acid chloroplast transit peptide (CTP) (US Patent No.
  • cry2A.127 gene and the CTP is controlled by the promoter from the Citrus Yellow Mosaic Virus (CYMV) (Huang and Hartung, 2001 , Journal of General Virology 82: 2549-2558; Genbank accession NC_003382.1 ) along with the intron 1 region from maize alcohol dehydrogenase gene (Adh1 Intron) (Dennis et al., 1984, Nucleic Acids Research 12: 3983-4000). Transcription of the cry2A.127 gene cassette is terminated by the presence of the terminator from the ubiquitin 3 (UBQ3) gene of Arabidopsis thaliana (Callis et al., 1995, Genetics 139: 921-939).
  • CYMV Citrus Yellow Mosaic Virus
  • UAQ3 ubiquitin 3
  • a genomic fragment corresponding to the 3' untranslated region from a ribosomal protein gene (RPG 3' UTR) of Arabidopsis thaliana is located between the cry2A.127 and cry1A.88 cassettes in order to prevent any potential transcriptional interference with downstream cassettes.
  • Transcriptional interference is defined as the transcriptional suppression of one gene on another when both are in close proximity (Shearwin, et al., 2005, Trends in Genetics 21 : 339-345).
  • the second cassette contains a second shuffled insect control gene, cry1A.88, encoding the Cry1A.88 protein that has been functionally optimized using DNA shuffling techniques and based on genes derived from Bacillus thuringiensis subsp. kurstaki.
  • the coding region which produces a 1 ,182- residue protein (approximately 134 kDa; SEQ ID NO: 9) is controlled by a truncated version of the promoter from Banana Streak Virus of acuminata Vietnam strain [BSV (AV)] (Lireux et al., 2007, Archives of Virology 152: 1409-1416; Genbank accession NC_007003.1 ) with a second copy of the maize Adh1 intron.
  • the terminator for the cry1A.88 cassette is a portion of the Sorghum bicolor genome containing the terminator from the actin gene (SB- actin) (Genbank accession XM_002441 128.1 ).
  • the third cassette contains the modified vip3A gene derived from Bacillus thuringiensis strain AB88, which encodes the insecticidal Vip3Aa20 protein (Estruch et al., 1996, PNAS 93: 5389-5394). Expression of the vip3Aa20 gene is controlled by the regulatory region of the maize polyubiquitin (ubiZMI ) gene, including the promoter, the 5' untranslated region (5' UTR) and intron (Christensen et al., 1992, Plant Molecular Biology 18: 675-689).
  • ubiZMI maize polyubiquitin
  • the terminator for the vip3Aa20 gene is the terminator sequence from the proteinase inhibitor II (pin 11 ) gene of Solanum tuberosum (Keil et al., 1986, Nucleic Acids Research 14: 5641-5650; An et al., 1989, The Plant Cell 1 : 1 15-122).
  • the Vip3Aa20 protein is 789-amino acid residues in length with an approximate molecular weight of 88 kDa (SEQ ID NO: 10).
  • the fourth gene cassette contains a maize-optimized version of the phosphinothricin acetyl transferase gene (mo-pat) from Streptomyces viridochromogenes (Wohlleben et al., 1988, Gene 70: 25-37).
  • the mo-pat gene expresses the phosphinothricin acetyl transferase (PAT) enzyme that confers tolerance to phosphinothricin.
  • the PAT protein is 183 amino acids in length and has an approximate molecular weight of 21 kDa (SEQ ID NO: 1 1 ).
  • mo-pat gene is controlled by a second copy of the ubiZMI promoter, the 5' UTR and intron (Christensen et al., 1992, Plant Molecular Biology 18: 675-689), in conjunction with a second copy of the pinll terminator (Keil et al., 1986, Nucleic Acids Research 14: 5641 -5650; An et al., 1989, The Plant Cell V. 115-122).
  • compositions and methods are provided for identifying a novel corn plant designated DP-032218-9.
  • the methods are based on primers or probes which specifically recognize the 5' and/or 3' flanking sequence of DP-032218-9.
  • DNA molecules are provided that comprise primer sequences that when utilized in a PCR reaction will produce amplicons unique to the transgenic event DP-032218-9.
  • the corn plant and seed comprising these molecules is an embodiment of this disclosure.
  • kits utilizing these primer sequences for the identification of the DP-032218-9 event are provided.
  • An additional embodiment of the disclosure relates to the specific flanking sequence of DP-032218-9 described herein, which can be used to develop specific identification methods for DP-032218-9 in biological samples. More particularly, the disclosure relates to the 5' and/or 3' flanking regions of DP-032218-9 which can be used for the development of specific primers and probes. A further embodiment of the disclosure relates to identification methods for the presence of DP-032218-9 in biological samples based on the use of such specific primers or probes.
  • methods of detecting the presence of DNA corresponding to the corn event DP-032218-9 in a sample comprise: (a) contacting the sample comprising DNA with a DNA primer set, that when used in a nucleic acid amplification reaction with genomic DNA extracted from corn event DP-032218-9 produces an amplicon that is diagnostic for corn event DP- 032218-9; (b) performing a nucleic acid amplification reaction, thereby producing the amplicon; and (c) detecting the amplicon.
  • methods of detecting the presence of a DNA molecule corresponding to the DP-032218-9 event in a sample comprising: (a) contacting the sample comprising DNA extracted from a corn plant with a DNA probe molecule that hybridizes under stringent hybridization conditions with DNA extracted from corn event DP-032218-9 and does not hybridize under the stringent hybridization conditions with a control corn plant DNA; (b) subjecting the sample and probe to stringent hybridization conditions; and (c) detecting hybridization of the probe to the DNA.
  • a method for detecting the presence of a DNA molecule corresponding to the DP-032218-9 event in a sample consisting of (a) contacting the sample comprising DNA extracted from a corn plant with a DNA probe molecule that consists of sequences that are unique to the event, e.g. junction sequences, wherein said DNA probe molecule hybridizes under stringent hybridization conditions with DNA extracted from corn event DP-032218-9 and does not hybridize under the stringent hybridization conditions with a control corn plant DNA; (b) subjecting the sample and probe to stringent hybridization conditions; and (c) detecting hybridization of the probe to the DNA.
  • kits and methods for identifying event DP-032218-9 in a biological sample which detects a DP-032218-9 specific region are provided.
  • DNA molecules are provided that comprise at least one junction sequence of DP- 032218-9; wherein a junction sequence spans the junction between heterologous DNA inserted into the genome and the DNA from the corn cell flanking the insertion site, i.e. flanking DNA, and is diagnostic for the DP-032218-9 event.
  • methods of producing an insect resistant corn plant that comprise the steps of: (a) sexually crossing a first parental corn line comprising the expression cassettes of the disclosure, which confers resistance to insects, and a second parental corn line that lacks insect resistance, thereby producing a plurality of progeny plants; and (b) selecting a progeny plant that is insect resistant.
  • Such methods may optionally comprise the further step of back-crossing the progeny plant to the second parental corn line to producing a true-breeding corn plant that is insect resistant.
  • a further embodiment of the disclosure provides a method of producing a corn plant that is resistant to insects comprising transforming a corn cell with the DNA construct PHP36676, growing the transformed corn cell into a corn plant, selecting the corn plant that shows resistance to insects, and further growing the corn plant into a fertile corn plant.
  • the fertile corn plant can be self-pollinated or crossed with compatible corn varieties to produce insect resistant progeny.
  • the event DP- 032218-9 was generated by transforming the maize line PHWWE with plasmid PHP36676.
  • kits for identifying maize event DP-032218-9 in biological samples comprising a first primer which specifically recognizes the 5' or 3' flanking region of DP-032218-9, and a second primer which specifically recognizes a sequence within the foreign DNA of DP- 032218-9, or within the flanking DNA, for use in a PCR identification protocol.
  • a further embodiment of the disclosure relates to a kit for identifying event DP-032218-9 in biological samples, which kit comprises a specific probe having a sequence which corresponds or is complementary to, a sequence having between 80% and 100% sequence identity with a specific region of event DP-032218-9. The sequence of the probe corresponds to a specific region comprising part of the 5' or 3' flanking region of event DP-032218-9.
  • the methods and kits encompassed by the embodiments of the present disclosure can be used for different purposes such as, but not limited to the following: to identify event DP-032218-9 in plants, plant material or in products such as, but not limited to, food or feed products (fresh or processed) comprising, or derived from plant material; additionally or alternatively, the methods and kits can be used to identify transgenic plant material for purposes of segregation between transgenic and non-transgenic material; additionally or alternatively, the methods and kits can be used to determine the quality of plant material comprising maize event DP-032218-9.
  • the kits may also contain the reagents and materials necessary for the performance of the detection method.
  • a further embodiment of this disclosure relates to the DP-032218-9 corn plant or its parts, including, but not limited to, pollen, ovules, vegetative cells, the nuclei of pollen cells, and the nuclei of egg cells of the corn plant DP-032218-9 and the progeny derived thereof.
  • the corn plant and seed of DP-032218-9 from which the DNA primer molecules provide a specific amplicon product is an embodiment of the disclosure.
  • a DNA construct comprising:
  • a plant comprising the DNA construct of embodiment 1.
  • a plant comprising the sequence set forth in SEQ ID NO: 5.
  • a corn plant comprising the genotype of the corn event DP-032218-9, wherein said genotype comprises the nucleotide sequences at the junction of the insert and genomic sequence as set forth in the forward and reverse junction primers.
  • a corn event DP-032218-9 wherein a representative sample of seed of said corn event has been deposited with American Type Culture Collection (ATCC) with Accession No. PTA-13391.
  • Seed comprising corn event DP-032218-9, wherein said seed comprises a DNA molecule selected from the group consisting of a forward junction primer and a reverse junction primer, wherein a representative sample of corn event DP-032218-9 seed of has been deposited with American Type Culture Collection (ATCC) with Accession No. PTA- 13391.
  • ATCC American Type Culture Collection
  • a transgenic seed produced from the corn plant of embodiment 1 1 comprising event DP-032218-9.
  • An isolated nucleic acid molecule comprising a nucleotide sequence selected from the group consisting of SEQ ID NO: 1 , SEQ ID NO: 5, a DP-032218-9 event specific forward junction primer, a DP-032218-9 event specific reverse junction primer, a DP- 032218-9 event specific amplicon, and full length complements thereof.
  • a DP-032218-9 event specific amplicon comprising the nucleic acid sequence selected from the group consisting of a DP-032218-9 event specific forward junction primer, a DP-032218-9 event specific reverse junction primer and full length complements thereof.
  • a biological sample derived from corn event DP-032218-9 plant, tissue, or seed wherein said sample comprises a nucleotide sequence which is or is complementary to a sequence selected from the group consisting of a forward junction primer and a reverse junction primer, wherein said nucleotide sequence is detectable in said sample using a nucleic acid amplification or nucleic acid hybridization method, wherein a representative sample of said corn event DP-032218-9 seed of has been deposited with American Type Culture Collection (ATCC) with Accession No. PTA-13391.
  • ATCC American Type Culture Collection
  • said biological sample is a DNA sample extracted from the transgenic corn plant event DP-032218-9, and wherein said DNA sample comprises one or more of the nucleotide sequences selected from the group consisting of a forward junction primer, a reverse junction primer, and the complement thereof.
  • ATCC American Type Culture Collection
  • a method of producing hybrid corn seeds comprising:
  • a method for producing a corn plant resistant to lepidopteran pests comprising:
  • a method of producing hybrid corn seeds comprising: (a) planting seeds of a first inbred corn line comprising the DNA construct of embodiment 1 and seeds of a second inbred line having a genotype different from the first inbred corn line;
  • the method of embodiment 28 further comprising the step of backcrossing the second generation progeny plant of step (d) that comprises corn event DP-032218-9 DNA to the parent plant that lacks the corn event DP-032218-9 DNA, thereby producing a backcross progeny plant that is resistant to at least lepidopteran insects.
  • a method for producing a corn plant resistant to at least lepidopteran insects comprising:
  • step (c) backcrossing the first generation progeny plant of step (b) with the parent plant that lacks corn event DP-032218-9 DNA, thereby producing a plurality of backcross progeny plants;
  • step (d) comprises SEQ ID NO: 5 .
  • a method of determining zygosity of DNA of a corn plant comprising corn event DP-032218-9 in a biological sample comprising:
  • a method of detecting the presence of a nucleic acid molecule that is unique to event DP-032218-9 in a sample comprising corn nucleic acids comprising:
  • a pair of polynucleotide primers comprising a first polynucleotide primer and a second polynucleotide primer which function together in the presence of event DP- 032218-9 DNA template in a sample to produce an amplicon diagnostic for event DP- 032218-9.
  • a method of detecting the presence of DNA corresponding to the DP-032218-9 event in a sample comprising: (a) contacting the sample comprising maize DNA with a polynucleotide probe that hybridizes under stringent hybridization conditions with DNA from maize event DP-032218-9 and does not hybridize under said stringent hybridization conditions with a non- DP-032218-9 maize plant DNA;
  • detection of hybridization indicates the presence of the DP-032218-9 event.
  • a kit for detecting nucleic acids that are unique to event DP-032218-9 comprising at least one nucleic acid molecule of sufficient length of contiguous polynucleotides to function as a primer or probe in a nucleic acid detection method, and which upon amplification of or hybridization to a target nucleic acid sequence in a sample followed by detection of the amplicon or hybridization to the target sequence, are diagnostic for the presence of nucleic acid sequences unique to event DP-032218-9 in the sample.
  • nucleic acid molecule comprises a nucleotide sequence from SEQ ID NO: 5.
  • nucleic acid molecule is a primer selected from the group consisting of one or more junction primer sequences, and the complements thereof.
  • the method further comprises contacting the sample with a first polynucleotide primer unique to maize HMG of SEQ ID NO: 13 and a second polynucleotide primer unique to maize HMG of SEQ ID NO: 14; and detecting the amplicon of SEQ ID NO: 16 with a maize HGM specific probe of SEQ ID NO: 15, wherein the HGM amplification serves to determine the quality of the nucleic acid in the sample.
  • the amplification method is a realtime PCR method.
  • thermo-cycler instrument The method of any one of embodiments 41 , 42 or 43, wherein the real-time PCR is performed in thermo-cycler instrument.
  • quencher molecule is a non-fluorescent quencher dye attached to a minor groove binding moiety.
  • a kit for detecting nucleic acids that are unique to event DP-032218-9 comprising the nucleic acid molecules of SEQ ID NO: 2, SEQ ID NO: 3 and SEQ ID NO: 4.
  • a kit for detecting nucleic acids that are unique to event DP-032218-9 comprising SEQ ID NO: 12.
  • thermo-cycler instrument The method of embodiment 51 or 52, wherein the real-time PCR is performed in thermo-cycler instrument.
  • a kit for determining in a sample comprising corn nucleic acids the zygosity of a nucleic acid unique to event DP-032218-9 comprising SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 13, SEQ ID NO: 14 and SEQ ID NO: 15.
  • Figure 1 shows a schematic diagram of plasmid PHP36676 with genetic elements indicated.
  • FIG. 2 shows a schematic diagram of the T-DNA region from plasmid
  • This disclosure relates to the insect resistant corn (Zea mays) plant DP-032218-9, also referred to as “maize line DP-032218-9,” “maize event DP-032218-9,” and “032218 maize,” and to the DNA plant expression construct of corn plant DP-032218-9 and the detection of the transgene/flanking insertion region in corn plant DP-032218-9 and progeny thereof.
  • compositions and methods are provided for identifying a novel corn plant designated DP-032218-9.
  • the methods are based on primers or probes which specifically recognize the 5' and/or 3' flanking sequence of DP-032218-9.
  • DNA molecules are provided that comprise primer sequences that when utilized in a PCR reaction will produce amplicons unique to the transgenic event DP-032218-9.
  • the corn plant and seed comprising these molecules is an embodiment of this disclosure.
  • kits utilizing these primer sequences for the identification of the DP-032218-9 event are provided.
  • An additional embodiment of the disclosure relates to the specific flanking sequence of DP-032218-9 described herein, which can be used to develop specific identification methods for DP-032218-9 in biological samples. More particularly, the disclosure relates to the 5' and/or 3' flanking regions of DP-032218-9 which can be used for the development of specific primers and probes. A further embodiment of the disclosure relates to identification methods for the presence of DP-032218-9 in biological samples based on the use of such specific primers or probes.
  • methods of detecting the presence of DNA corresponding to the corn event DP-032218-9 in a sample comprise: (a) contacting the sample comprising DNA with a DNA primer set, that when used in a nucleic acid amplification reaction with genomic DNA extracted from corn event DP-032218-9 produces an amplicon that is diagnostic for corn event DP- 032218-9; (b) performing a nucleic acid amplification reaction, thereby producing the amplicon; and (c) detecting the amplicon.
  • methods of detecting the presence of a DNA molecule corresponding to the DP-032218-9 event in a sample comprising: (a) contacting the sample comprising DNA extracted from a corn plant with a DNA probe molecule that hybridizes under stringent hybridization conditions with DNA extracted from corn event DP-032218-9 and does not hybridize under the stringent hybridization conditions with a control corn plant DNA; (b) subjecting the sample and probe to stringent hybridization conditions; and (c) detecting hybridization of the probe to the DNA.
  • a method for detecting the presence of a DNA molecule corresponding to the DP-032218-9 event in a sample consisting of (a) contacting the sample comprising DNA extracted from a corn plant with a DNA probe molecule that consists of sequences that are unique to the event, e.g. junction sequences, wherein said DNA probe molecule hybridizes under stringent hybridization conditions with DNA extracted from corn event DP-032218-9 and does not hybridize under the stringent hybridization conditions with a control corn plant DNA; (b) subjecting the sample and probe to stringent hybridization conditions; and (c) detecting hybridization of the probe to the DNA.
  • a kit and methods for identifying event DP-032218-9 in a biological sample which detects a DP-032218-9 specific region are provided.
  • DNA molecules are provided that comprise at least one junction sequence of DP- 032218-9; wherein a junction sequence spans the junction between heterologous DNA inserted into the genome and the DNA from the corn cell flanking the insertion site, i.e. flanking DNA, and is diagnostic for the DP-032218-9 event.
  • methods of producing an insect resistant corn plant that comprise the steps of: (a) sexually crossing a first parental corn line comprising the expression cassettes of the disclosure, which confers resistance to insects, and a second parental corn line that lacks insect resistance, thereby producing a plurality of progeny plants; and (b) selecting a progeny plant that is insect resistant.
  • Such methods may optionally comprise the further step of back-crossing the progeny plant to the second parental corn line to producing a true-breeding corn plant that is insect resistant.
  • a further embodiment of the disclosure provides a method of producing a corn plant that is resistant to insects comprising transforming a corn cell with the DNA construct PHP36676, growing the transformed corn cell into a corn plant, selecting the corn plant that shows resistance to insects, and further growing the corn plant into a fertile corn plant.
  • the fertile corn plant can be self-pollinated or crossed with compatible corn varieties to produce insect resistant progeny.
  • kits for identifying maize event DP-032218-9 in biological samples comprising a first primer which specifically recognizes the 5' or 3' flanking region of DP-032218-9, and a second primer which specifically recognizes a sequence within the foreign DNA of DP- 032218-9, or within the flanking DNA, for use in a PCR identification protocol.
  • a further embodiment of the disclosure relates to a kit for identifying event DP-032218-9 in biological samples, which kit comprises a specific probe having a sequence which corresponds or is complementary to, a sequence having between 80% and 100% sequence identity with a specific region of event DP-032218-9. The sequence of the probe corresponds to a specific region comprising part of the 5' or 3' flanking region of event DP-032218-9.
  • the methods and kits encompassed by the embodiments of the present disclosure can be used for different purposes such as, but not limited to the following: to identify event DP-032218-9 in plants, plant material or in products such as, but not limited to, food or feed products (fresh or processed) comprising, or derived from plant material; additionally or alternatively, the methods and kits can be used to identify transgenic plant material for purposes of segregation between transgenic and non-transgenic material; additionally or alternatively, the methods and kits can be used to determine the quality of plant material comprising maize event DP-032218-9.
  • the kits may also contain the reagents and materials necessary for the performance of the detection method.
  • a further embodiment of this disclosure relates to the DP-032218-9 corn plant or its parts, including, but not limited to, pollen, ovules, vegetative cells, the nuclei of pollen cells, and the nuclei of egg cells of the corn plant DP-032218-9 and the progeny derived thereof.
  • the corn plant and seed of DP-032218-9 from which the DNA primer molecules provide a specific amplicon product is an embodiment of the disclosure.
  • the first cassette contains the proprietary cry2A.127 gene, a Cry2Ab- like coding sequence that has been functionally optimized using DNA shuffling and directed mutagenesis techniques.
  • the 634 residue protein produced by expression of the cry2A.127 sequence is targeted to maize chloroplasts through the addition of a 56 amino acid codon-optimized synthetic chloroplast targeting peptide (CTP) as well as 4 synthetic linker amino acids, resulting in a total length of 694 amino acids (approximately 77 kDa) for the precursor protein (the Cry2A.127 CTP sequence is cleaved upon insertion into the chloroplast, resulting in a mature protein of approximately 71 kDa.
  • CTP chloroplast targeting peptide
  • cry2A.127 gene and attached transit peptide is controlled by the full length promoter from the CYMV promoter (Citrus Yellow Mosaic Virus; Genbank accession AF347695.1 ) along with a downstream copy of the maize adh ⁇ intron (Dennis et al. , 1984). Transcription of the cry2A.127 gene cassette is terminated by the downstream presence of the Arabidopsis thaliana ubiquitin 3 (UBQ3) termination region (Callis et al. , 1995).
  • CYMV promoter Carbon Yellow Mosaic Virus
  • Genbank accession AF347695.1 a downstream copy of the maize adh ⁇ intron
  • a 2.2 kB fragment corresponding to the 3' un-translated region from an Arabidopsis ribosomal protein gene (TAIR accession AT3G28500; Salanoubat et al., 2000) is located between the cry2A.127 and cry1A.88 cassettes in order to eliminate any potential read thru transcripts.
  • the second cassette contains a second shuffled proprietary insect control gene, the Cry1A-like crylA.88 coding region.
  • This 1 182 residue coding region (which produces a precursor protein of approximately 133 kDa, is controlled by a truncated version (470 nucleotides in length) of the full length promoter from Banana Streak Virus (Acuminata Vietnam strain; Löux et al. , 2007) along with a second copy of the maize adh ⁇ intron.
  • the termination region for the cry1A.88 cassette is a 1 .1 kB portion of the Sorghum bi- color genome containing the 3' termination region from the SB-Actin gene (Paterson et al. , 2009)).
  • Three other termination regions are present between the second and third cassettes; the 27 kD gamma zein terminator originally isolated from maize line W64A (Das et al., 1991 ), a genomic fragment of Arabidopsis thaliana chromosome 4 containing the Ubiquitin-14 (UBQ14) 3'UTR and terminator (Mayer et al., 1999) and the termination sequence from the maize In2-1 gene (Hershey and Stoner, 1991 ).
  • the third cassette contains the vip3Aa20 gene, which codes for a synthetic version of the insecticidal Vip3Aa20 protein (present in the approved Syngenta event MI R162; Estruch et al. , 1996). Expression of the vip3Aa20 gene is controlled by the maize polyubiquitin promoter, including the 5' untranslated region and intron 1 (Christensen et al., 1992).
  • the terminator for the vip3Aa20 gene is the 3' terminator sequence from the proteinase inhibitor II gene of Solanum tuberosum ⁇ pinW terminator) (Keil et al., 1986; An et al., 1989).
  • the Vip3Aa20 protein is 789 amino acid residues in length with an approximate molecular weight of 88 kDa .
  • the fourth and final gene cassette contains a version of the phosphinothricin acetyl transferase gene (mo-pat) from Streptomyces viridochromogenes (Wohlleben et al., 1988) that has been optimized for expression in maize.
  • the pat gene expresses the phosphinothricin acetyl transferase enzyme (PAT) that confers tolerance to phosphinothricin.
  • the PAT protein is 183 amino acids residues in length and has a molecular weight of approximately 21 kDa . Expression of the mo-pat gene is controlled by a second copy of the maize polyubiquitin promoter/5'UTR/intron in conjunction with a second copy of the pinW terminator. Plants containing the DNA constructs are also provided.
  • a description of the genetic elements in the PHP36676 T-DNA set forth in SEQ ID NO: 1 ) and their sources are described further in the Table of Abbreviations below.
  • compositions of this disclosure include seed deposited as Patent Deposit No. PTA-13391 and plants, plant cells, and seed derived therefrom. Applicant(s) have made a deposit of at least 2500 seeds of maize event DP-032218-9 with the American Type Culture Collection (ATCC), Manassas, VA 201 10-2209 USA, on December 12, 2012 and the deposits were assigned ATCC Deposit No. PTA-13391. These deposits will be maintained under the terms of the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure. These deposits were made merely as a convenience for those of skill in the art and are not an admission that a deposit is required under 35 U.S.C. ⁇ 1 12.
  • corn means Zea mays or maize and includes all plant varieties that can be bred with corn, including wild maize species.
  • DP-032218-9 specific refers to a nucleotide sequence which is suitable for discriminatively identifying event DP-032218-9 in plants, plant material, or in products such as, but not limited to, food or feed products (fresh or processed) comprising, or derived from plant material.
  • insect resistant and “impacting insect pests” refers to effecting changes in insect feeding, growth, and/or behavior at any stage of development, including but not limited to: killing the insect; retarding growth; preventing reproductive capability; inhibiting feeding; and the like.
  • the terms “pesticidal activity” and “insecticidal activity” are used synonymously to refer to activity of an organism or a substance (such as, for example, a protein) that can be measured by numerous parameters including, but not limited to, pest mortality, pest weight loss, pest attraction, pest repellency, and other behavioral and physical changes of a pest after feeding on and/or exposure to the organism or substance for an appropriate length of time.
  • pesticidal proteins are proteins that display pesticidal activity by themselves or in combination with other proteins.
  • Coding sequence refers to a nucleotide sequence that codes for a specific amino acid sequence.
  • the terms “encoding” or “encoded” when used in the context of a specified nucleic acid mean that the nucleic acid comprises the requisite information to guide translation of the nucleotide sequence into a specified protein. The information by which a protein is encoded is specified by the use of codons.
  • a nucleic acid encoding a protein may comprise non-translated sequences (e.g., introns) within translated regions of the nucleic acid or may lack such intervening non-translated sequences (e.g., as in cDNA).
  • Gene refers to a nucleic acid fragment that expresses a specific protein, including regulatory sequences preceding (5' non-coding sequences) and following (3' non-coding sequences) the coding sequence.
  • Native gene refers to a gene as found in nature with its own regulatory sequences.
  • Chimeric gene refers any gene that is not a native gene, comprising regulatory and coding sequences that are not found together in nature. Accordingly, a chimeric gene may comprise regulatory sequences and coding sequences that are derived from different sources, or regulatory sequences and coding sequences derived from the same source, but arranged in a manner different than that found in nature.
  • Endogenous gene refers to a native gene in its natural location in the genome of an organism.
  • Form refers to material not normally found in the location of interest.
  • foreign DNA may comprise both recombinant DNA as well as newly introduced, rearranged DNA of the plant.
  • a “foreign” gene refers to a gene not normally found in the host organism, but that is introduced into the host organism by gene transfer. Foreign genes can comprise native genes inserted into a non-native organism, or chimeric genes.
  • a “transgene” is a gene that has been introduced into the genome by a transformation procedure. The site in the plant genome where a recombinant DNA has been inserted may be referred to as the "insertion site” or "target site”.
  • insert DNA refers to the heterologous DNA within the expression cassettes used to transform the plant material while "flanking DNA” can exist of either genomic DNA naturally present in an organism such as a plant, or foreign (heterologous) DNA introduced via the transformation process which is extraneous to the original insert DNA molecule, e.g. fragments associated with the transformation event.
  • a "flanking region” or “flanking sequence” as used herein refers to a sequence of at least 20 bp, preferably at least 50 bp, and up to 5000 bp, which is located either immediately upstream of and contiguous with or immediately downstream of and contiguous with the original foreign insert DNA molecule.
  • Transformants will also contain unique junctions between a piece of heterologous insert DNA and genomic DNA, or two (2) pieces of genomic DNA, or two (2) pieces of heterologous DNA.
  • a "junction" is a point where two (2) specific DNA fragments join. For example, a junction exists where insert DNA joins flanking DNA.
  • a junction point also exists in a transformed organism where two (2) DNA fragments join together in a manner that is modified from that found in the native organism.
  • “Junction DNA” refers to DNA that comprises a junction point. Two junction sequences set forth in this disclosure are the junction point between the maize genomic DNA and the 5' end of the insert as set forth in the forward junction sequences and the junction point between the 3' end of the insert and maize genomic DNA as set forth in the reverse junction sequences.
  • heterologous in reference to a nucleic acid is a nucleic acid that originates from a foreign species, or, if from the same species, is substantially modified from its native form in composition and/or genomic locus by deliberate human intervention.
  • a promoter operably linked to a heterologous nucleotide sequence can be from a species different from that from which the nucleotide sequence was derived, or, if from the same species, the promoter is not naturally found operably linked to the nucleotide sequence.
  • a heterologous protein may originate from a foreign species, or, if from the same species, is substantially modified from its original form by deliberate human intervention.
  • Regulatory sequences refer to nucleotide sequences located upstream (5' non- coding sequences), within, or downstream (3' non-coding sequences) of a coding sequence, and which influence the transcription, RNA processing or stability, or translation of the associated coding sequence. Regulatory sequences can include, without limitation: promoters, translation leader sequences, introns, and polyadenylation recognition sequences.
  • Promoter refers to a nucleotide sequence capable of controlling the expression of a coding sequence or functional RNA.
  • a coding sequence is located 3' to a promoter sequence.
  • the promoter sequence consists of proximal and more distal upstream elements, the latter elements are often referred to as enhancers.
  • an “enhancer” is a nucleotide sequence that can stimulate promoter activity and may be an innate element of the promoter or a heterologous element inserted to enhance the level or tissue-specificity of a promoter. Promoters may be derived in their entirety from a native gene, or be composed of different elements derived from different promoters found in nature, or even comprise synthetic nucleotide segments.
  • promoters may direct the expression of a gene in different tissues or cell types, or at different stages of development, or in response to different environmental conditions. Promoters that cause a nucleic acid fragment to be expressed in most cell types at most times are commonly referred to as "constitutive promoters". New promoters of various types useful in plant cells are constantly being discovered; numerous examples may be found in the compilation by Okamuro and Goldberg (1989) Biochemistry of Plants 15:1 -82. It is further recognized that since in most cases the exact boundaries of regulatory sequences have not been completely defined, nucleic acid fragments of different lengths may have identical promoter activity.
  • translation leader sequence refers to a nucleotide sequence located between the promoter sequence of a gene and the coding sequence.
  • the translation leader sequence is present in the fully processed mRNA upstream of the translation start sequence.
  • the translation leader sequence may affect numerous parameters including, but not limited to, processing of the primary transcript to mRNA, mRNA stability and/or translation efficiency. Examples of translation leader sequences have been described (Turner and Foster (1995) Mol. Biotechnol. 3:225-236).
  • the "3' non-coding sequences” refer to nucleotide sequences located downstream of a coding sequence and include polyadenylation recognition sequences and other sequences encoding regulatory signals capable of affecting mRNA processing or gene expression.
  • the polyadenylation signal is usually characterized by affecting the addition of polyadenylic acid tracts to the 3' end of the mRNA precursor.
  • the use of different 3' non-coding sequences is exemplified by Ingelbrecht et al. (1989) Plant Cell 1 :671-680.
  • a “protein” or “polypeptide” is a chain of amino acids arranged in a specific order determined by the coding sequence in a polynucleotide encoding the polypeptide.
  • a DNA construct is an assembly of DNA molecules linked together that provide one or more expression cassettes.
  • the DNA construct may be a plasmid that is enabled for self-replication in a bacterial cell and contains various endonuclease enzyme restriction sites that are useful for introducing DNA molecules that provide functional genetic elements, i.e., promoters, introns, leaders, coding sequences, 3' termination regions, among others; or a DNA construct may be a linear assembly of DNA molecules, such as an expression cassette.
  • the expression cassette contained within a DNA construct comprises the necessary genetic elements to provide transcription of a messenger RNA.
  • the expression cassette can be designed to express in prokaryote cells or eukaryotic cells. Expression cassettes of the embodiments of the present disclosure are designed to express in plant cells.
  • the DNA molecules of embodiments of the disclosure are provided in expression cassettes for expression in an organism of interest.
  • the cassette will include 5' and 3' regulatory sequences operably linked to a coding sequence.
  • "Operably linked" means that the nucleic acid sequences being linked are contiguous and, where necessary to join two protein coding regions, contiguous and in the same reading frame. Operably linked is intended to indicate a functional linkage between a promoter and a second sequence, wherein the promoter sequence initiates and mediates transcription of the DNA sequence corresponding to the second sequence.
  • the cassette may additionally contain at least one additional gene to be co-transformed into the organism. Alternatively, the additional gene(s) can be provided on multiple expression cassettes or multiple DNA constructs.
  • the expression cassette will include in the 5' to 3' direction of transcription: a transcriptional and translational initiation region, a coding region, and a transcriptional and translational termination region functional in the organism serving as a host.
  • the transcriptional initiation region i.e., the promoter
  • the transcriptional initiation region may be native or analogous, or foreign or heterologous to the host organism. Additionally, the promoter may be the natural sequence or alternatively a synthetic sequence.
  • the expression cassettes may additionally contain 5' leader sequences in the expression cassette construct. Such leader sequences can act to enhance translation.
  • transgenic includes any cell, cell line, callus, tissue, plant part, or plant, the genotype of which has been altered by the presence of a heterologous nucleic acid including those transgenics initially so altered as well as those created by sexual crosses or asexual propagation from the initial transgenic.
  • the term "transgenic” as used herein does not encompass the alteration of the genome (chromosomal or extra-chromosomal) by conventional plant breeding methods or by naturally occurring events such as random cross-fertilization, non-recombinant viral infection, non-recombinant bacterial transformation, non-recombinant transposition, or spontaneous mutation.
  • a transgenic "event” is produced by transformation of plant cells with a heterologous DNA construct(s), including a nucleic acid expression cassette that comprises a transgene of interest, the regeneration of a population of plants resulting from the insertion of the transgene into the genome of the plant, and selection of a particular plant characterized by insertion into a particular genome location.
  • An event is characterized phenotypically by the expression of the transgene.
  • an event is part of the genetic makeup of a plant.
  • the term “event” also refers to progeny produced by a sexual outcross between the transformant and another variety that include the heterologous DNA.
  • vent also refers to DNA from the original transformant comprising the inserted DNA and flanking sequence immediately adjacent to the inserted DNA that would be expected to be transferred to a progeny that receives inserted DNA including the transgene of interest as the result of a sexual cross of one parental line that includes the inserted DNA (e.g., the original transformant and progeny resulting from selfing) and a parental line that does not contain the inserted DNA.
  • An insect resistant DP-032218-9 corn plant can be bred by first sexually crossing a first parental corn plant consisting of a corn plant grown from the transgenic DP-032218-9 corn plant and progeny thereof derived from transformation with the expression cassettes of the embodiments of the present disclosure that confers insect resistance, and a second parental corn plant that lacks insect resistance, thereby producing a plurality of first progeny plants; and then selecting a first progeny plant that is resistant to insects; and selfing the first progeny plant, thereby producing a plurality of second progeny plants; and then selecting from the second progeny plants an insect resistant plant.
  • These steps can further include the back-crossing of the first insect resistant progeny plant or the second insect resistant progeny plant to the second parental corn plant or a third parental corn plant, thereby producing a corn plant that is resistant to insects.
  • the term "plant” includes reference to whole plants, plant organs (e.g., leaves, stems, roots, etc.), seeds, plant cells, and progeny of same.
  • Parts of transgenic plants understood to be within the scope of the disclosure comprise, for example, plant cells, protoplasts, tissues, callus, embryos as well as flowers, stems, fruits, leaves, and roots originating in transgenic plants or their progeny previously transformed with a DNA molecule of the disclosure and therefore consisting at least in part of transgenic cells, are also an embodiment of the present disclosure.
  • plant cell includes, without limitation, seeds, suspension cultures, embryos, meristematic regions, callus tissue, leaves, roots, shoots, gametophytes, sporophytes, pollen, and microspores.
  • the class of plants that can be used in the methods of the disclosure is generally as broad as the class of higher plants amenable to transformation techniques, including both monocotyledonous and dicotyledonous plants.
  • Transformation refers to the transfer of a nucleic acid fragment into the genome of a host organism, resulting in genetically stable inheritance. Host organisms containing the transformed nucleic acid fragments are referred to as "transgenic" organisms. Examples of methods of plant transformation include ⁇ grobacfer/i/m-mediated transformation (De Blaere et al. (1987) Meth. Enzymol. 143:277) and particle-accelerated or “gene gun” transformation technology (Klein et al. (1987) Nature (London) 327:70-73; U.S. Patent No. 4,945,050, incorporated herein by reference). Additional transformation methods are disclosed below.
  • isolated polynucleotides of the disclosure can be incorporated into recombinant constructs, typically DNA constructs, which are capable of introduction into and replication in a host cell.
  • a construct can be a vector that includes a replication system and sequences that are capable of transcription and translation of a polypeptide- encoding sequence in a given host cell.
  • a number of vectors suitable for stable transfection of plant cells or for the establishment of transgenic plants have been described in, e.g., Pouwels et al., (1985; Supp.
  • plant expression vectors include, for example, one or more cloned plant genes under the transcriptional control of 5' and 3' regulatory sequences and a dominant selectable marker.
  • Such plant expression vectors also can contain, without limitation: a promoter regulatory region (e.g., a regulatory region controlling inducible or constitutive, environmentally- or developmentally-regulated, or cell- or tissue-specific expression), a transcription initiation start site, a ribosome binding site, an RNA processing signal, a transcription termination site, and/or a polyadenylation signal.
  • a promoter regulatory region e.g., a regulatory region controlling inducible or constitutive, environmentally- or developmentally-regulated, or cell- or tissue-specific expression
  • a transcription initiation start site e.g., a regulatory region controlling inducible or constitutive, environmentally- or developmentally-regulated, or cell- or tissue-specific expression
  • a transcription initiation start site e.g., a promoterating inducible or constitutive, environmentally- or developmentally-regulated, or cell- or tissue-specific expression
  • RNA processing signal e.g., a transcription termination site, or a transcription termination site, and/or a polya
  • transgenic plants can also be crossed to produce progeny that contain two independently segregating added, exogenous genes. Selfing of appropriate progeny can produce plants that are homozygous for both added, exogenous genes.
  • Back-crossing to a parental plant and out-crossing with a non- transgenic plant are also contemplated, as is vegetative propagation. Descriptions of other breeding methods that are commonly used for different traits and crops can be found in one of several references, e.g., Fehr, in Breeding Methods for Cultivar Development, Wilcos J. ed., American Society of Agronomy, Madison Wis. (1987).
  • seeds comprising event DP-032218-9 may be combined with a seed treatment formulation or compound.
  • the formula can be applied by such methods as drenching the growing medium including the seed with a solution or dispersion, mixing with growing medium and planting the seed in the treated growing medium, or various forms of seed treatments whereby the formulation is applied to the seed before it is planted.
  • the seed treatment will generally be used as a formulation or compound with an agriculturally suitable carrier comprising at least one of a liquid diluent, a solid diluent or a surfactant.
  • an agriculturally suitable carrier comprising at least one of a liquid diluent, a solid diluent or a surfactant.
  • useful formulations include, without limitation: liquids such as solutions (including emulsifiable concentrates), suspensions, emulsions (including microemulsions and/or suspoemulsions) and the like which optionally can be thickened into gels.
  • Useful formulations further include, but are not limited to: solids such as dusts, powders, granules, pellets, tablets, films, and the like which can be water-dispersible ("wettable") or water-soluble.
  • Active ingredient can be microencapsulated and further formed into a suspension or solid formulation; alternatively the entire formulation of active ingredient can be encapsulated (or "overcoated”). Encapsulation can control or delay release of the active ingredient.
  • Sprayable formulations can be extended in suitable media and used at spray volumes from about one to several hundred liters per hectare.
  • the disclosure includes a seed contacted with a composition comprising a biologically effective amount of a seed treatment compound and an effective amount of at least one other biologically active compound or agent.
  • compositions used for treating seeds (or plant grown therefrom) according to this disclosure can also comprise an effective amount of one or more other biologically active compounds or agents.
  • Suitable additional compounds or agents include, but are not limited to: insecticides, fungicides, nematocides, bactericides, acaricides, growth regulators such as rooting stimulants, chemosterilants, semiochemicals, repellents, attractants, pheromones, feeding stimulants, other biologically active compounds or entomopathogenic, viruses, bacteria or fungi to form a multi-component pesticide giving an even broader spectrum of agricultural utility.
  • growth regulators such as rooting stimulants, chemosterilants, semiochemicals, repellents, attractants, pheromones, feeding stimulants, other biologically active compounds or entomopathogenic, viruses, bacteria or fungi to form a multi-component pesticide giving an even broader spectrum of agricultural utility.
  • insecticides such as abamectin, acephate, acetamiprid, amidoflumet (S-1955), avermectin, azadirachtin, azinphos-methyl, bifenthrin, binfenazate, buprofezin, carbofuran, chlorfenapyr, chlorfluazuron, chlorpyrifos, chlorpyrifos-methyl, chromafenozide, clothianidin, cyfluthrin, beta-cyfluthrin, cyhalothrin, lambda-cyhalothrin, cypermethrin, cyromazine, deltamethrin, diafenthiuron, diazinon, diflubenzuron, dimethoate, diofenolan, emamectin, endosulfan, e
  • insecticides such as abamectin, acephate,
  • entomopathic viruses include, but are not limited to, species classified as baculoviruses, ascoviruses, iridoviruses, parvoviruses, polydnavirusespoxviruses, reoviruses and tetraviruses. Examples also include entomopathoic viruses that have been genetically modified with additional beneficial properties (Gramkow, A.W. et al., 2010 Virology Journal 7, art. no. 143; Shim, et al., 2009 Journal of Asia-pacific Entomology 12(4): 217-220).
  • entomopathic bacteria include, but are not limited to, species within the genera Bacillus (including B. cereus, B. popilliae, B. sphaericus and B. thuringiensis), Enterococcus, Fischerella, Lysinibacillus, Photorhabdus, Pseudomonas, Saccharopolyspora, Streptomyces, Xenorhabdus and Yersinia (see, for example, Barry, C, 2012 Journal of Invertebrate Pathology 109(1 ): 1 -10;; Sanchis, V., 201 1 Agronomy for Sustainable Development 31 (1 ): 217-231 ; Mason, K.L., et al., 201 1 mBio 2(3): e00065- 1 1 ; Muratoglu, H., et al., 201 1 Turkish Journal of Biology 35(3): 275-282; Hincliffe, S.J., et al., 2010 The Open Toxinology Journal
  • entomopathic fungi include, but are not limited to species within the genera Beauveria (e.g., B. bassiana), Cordyceps, Lecanicillium, Metarhizium (e.g., M. anisopliae), Nomuraea and Paecilomyces (US20120128648, WO201 1099022, US201 10038839, US7416880, US6660290; Tang, L.-C.
  • entomopathic nematodes include, but are not limited to, species within the genera Heterorhabditis and Steinernema (US 6, 184,434).
  • the efficacy of event DP-032218-9 against target pests is increased and the development of resistant insects is reduced by use of a non-transgenic "refuge" - a section of non-insecticidal corn or other crop.
  • the event of the present disclosure can be "stacked", or combined, with any combination of polynucleotide sequences of interest in order to create plants with a desired trait.
  • a trait refers to the phenotype derived from a particular sequence or groups of sequences.
  • the event of the present disclosure may be stacked with any other polynucleotides encoding polypeptides of interest.
  • maize event DP-032218-9 can be stacked with other genes conferring pesticidal and/or insecticidal activity, such as other Bacillus thuringiensis toxic proteins (described in U.S. Pat. Nos. 5,366,892; 5,747,450; 5,737,514; 5,723,756; 5,593,881 ; and Geiser et al. (1986) Gene 48:109), lectins (Van Damme et al. (1994) Plant Mol. Biol. 24:825, pentin (described in U.S. Pat. No. 5,981 ,722), and the like.
  • pesticidal and/or insecticidal activity such as other Bacillus thuringiensis toxic proteins (described in U.S. Pat. Nos. 5,366,892; 5,747,450; 5,737,514; 5,723,756; 5,593,881 ; and Geiser et al. (1986) Gene 48:109), lectins (Van Dam
  • the combinations generated can also include multiple copies of any one of the polynucleotides of interest.
  • the polynucleotides of the present disclosure can also be stacked with any other gene or combination of genes to produce plants with a variety of desired trait combinations including, but not limited to, balanced amino acids (e.g., hordothionins (U.S. Pat. Nos. 5,990,389; 5,885,801 ; 5,885,802; and 5,703,409); barley high lysine (Williamson et al. (1987) Eur. J. Biochem. 165:99-106; and WO 98/20122) and high methionine proteins (Pedersen et al. (1986) J. Biol. Chem.
  • balanced amino acids e.g., hordothionins (U.S. Pat. Nos. 5,990,389; 5,885,801 ; 5,885,802; and 5,703,409)
  • acetolactate synthase (ALS) mutants that lead to herbicide resistance such as the S4 and/or Hra mutations
  • inhibitors of glutamine synthase such as phosphinothricin or basta (e.g., bar gene); and glyphosate resistance (EPSPS gene)
  • traits desirable for processing or process products such as high oil (e.g., U.S. Pat. No. 6,232,529); modified oils (e.g., fatty acid desaturase genes (U.S. Pat. No.
  • polynucleotides of the present disclosure could also combine with polynucleotides providing agronomic traits such as male sterility (e.g., see U.S. Pat. No. 5,583,210), stalk strength, flowering time, or transformation technology traits such as cell cycle regulation or gene targeting (e.g., WO 99/61619, WO 00/17364, and WO 99/25821 ).
  • agronomic traits such as male sterility (e.g., see U.S. Pat. No. 5,583,210), stalk strength, flowering time, or transformation technology traits such as cell cycle regulation or gene targeting (e.g., WO 99/61619, WO 00/17364, and WO 99/25821 ).
  • Non-limiting examples of events that may be combined with the event of the present disclosure are shown in Table 1.
  • EEB European corn borer
  • CEW Corn earworm
  • FAW fall army worm
  • BCW Black cutworm
  • acetyltransferase from Streptomyces hygroscopicus.
  • the PAT encoding gene from Streptomyces viridochromogenes was introduced as a selectable marker.
  • MON88017 Monsanto Company Corn rootworm-resistant maize produced by inserting the cry3Bb1 gene from Bacillus thuringiensis subspecies kumamotoensis strain EG4691. Glyphosate tolerance derived by inserting a 5- enolpyruvylshikimate-3-phosphate synthase (EPSPS) encoding gene from Bacillus thuringiensis subspecies kumamotoensis strain EG4691. Glyphosate tolerance derived by inserting a 5- enolpyruvylshikimate-3-phosphate synthase (EPSPS) encoding gene from Bacillus thuringiensis subspecies kumamotoensis strain EG4691. Glyphosate tolerance derived by inserting a 5- enolpyruvylshikimate-3-phosphate synthase (EPSPS) encoding gene from Bacillus thuringiensis subspecies kumamotoensis strain
  • insecticidal proteins from Bacillus thuringiensis providing resistance to number of lepidopteran pests.
  • MON89034 (OECD identifier: MON-89034- 3) and MON88017 (OECD identifienMON- 88017-3).
  • Resistance to Lepidopteran insects is derived from two cry genes present in MON89043.
  • Corn rootworm resistance is derived from a single cry genes and glyphosate tolerance is derived from the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) encoding gene from Agrobacterium tumefaciens present in MON88017.
  • EPSPS 5-enolpyruvylshikimate-3-phosphate synthase
  • tolerant maize produced by conventional cross breeding of parental lines MON89034 (OECD identifier: MON-89034-3) with NK603 (OECD unique identifier: MON- 00603-6).
  • Resistance to Lepidopteran insects is derived from two cry genes present in MON89043.
  • Tolerance to glyphosate herbicide is derived from NK603.
  • polynucleotide sequences can be stacked at a desired genomic location using a site-specific recombination system. See, for example, W099/25821 , W099/25854, WO99/25840, W099/25855, and W099/25853.
  • the event of the disclosure can be combined with traits native to certain maize lines that can be identified by a quantitative trait locus (QTL).
  • QTL quantitative trait locus
  • Such a probe is complementary to a strand of a target nucleic acid, in the case of the present disclosure, to a strand of isolated DNA from corn event DP-032218-9 whether from a corn plant or from a sample that includes DNA from the event.
  • Probes according to the present disclosure include not only deoxyribonucleic or ribonucleic acids but also polyamides and other probe materials that bind specifically to a target DNA sequence and can be used to detect the presence of that target DNA sequence.
  • Primer pairs of the disclosure refer to their use for amplification of a target nucleic acid sequence, e.g., by PCR or other conventional nucleic-acid amplification methods.
  • PCR or “polymerase chain reaction” is a technique used for the amplification of specific DNA segments (see, U.S. Patent Nos. 4,683,195 and 4,800,159; herein incorporated by reference).
  • Probes and primers are of sufficient nucleotide length to bind to the target DNA sequence specifically in the hybridization conditions or reaction conditions determined by the operator. This length may be of any length that is of sufficient length to be useful in a detection method of choice. Generally, 1 1 nucleotides or more in length, 18 nucleotides or more, and 22 nucleotides or more, are used. Such probes and primers hybridize specifically to a target sequence under high stringency hybridization conditions. Probes and primers according to embodiments of the present disclosure may have complete DNA sequence similarity of contiguous nucleotides with the target sequence, although probes differing from the target DNA sequence and that retain the ability to hybridize to target DNA sequences may be designed by conventional methods. Probes can be used as primers, but are generally designed to bind to the target DNA or RNA and are not used in an amplification process.
  • Specific primers can be used to amplify an integration fragment to produce an amplicon that can be used as a "specific probe" for identifying event DP-032218-9 in biological samples.
  • the probe is hybridized with the nucleic acids of a biological sample under conditions which allow for the binding of the probe to the sample, this binding can be detected and thus allow for an indication of the presence of event DP- 032218-9 in the biological sample.
  • the specific probe is a sequence which, under optimized conditions, hybridizes specifically to a region within the 5' or 3' flanking region of the event and also comprises a part of the foreign DNA contiguous therewith.
  • the specific probe may comprise a sequence of at least 80%, between 80 and 85%, between 85 and 90%, between 90 and 95%, and between 95 and 100% identical (or complementary) to a specific region of the event.
  • kits refers to a set of reagents for the purpose of performing the method embodiments of the disclosure, more particularly, the identification of event DP- 032218-9 in biological samples.
  • the kit of the disclosure can be used, and its components can be specifically adjusted, for purposes of quality control (e.g. purity of seed lots), detection of event DP-032218-9 in plant material, or material comprising or derived from plant material, such as but not limited to food or feed products.
  • Plant material refers to material which is obtained or derived from a plant.
  • Primers and probes based on the flanking DNA and insert sequences disclosed herein can be used to confirm (and, if necessary, to correct) the disclosed sequences by conventional methods, e.g., by re-cloning and sequencing such sequences.
  • the nucleic acid probes and primers of the present disclosure hybridize under stringent conditions to a target DNA sequence. Any conventional nucleic acid hybridization or amplification method can be used to identify the presence of DNA from a transgenic event in a sample.
  • Nucleic acid molecules or fragments thereof are capable of specifically hybridizing to other nucleic acid molecules under certain circumstances.
  • two nucleic acid molecules are said to be capable of specifically hybridizing to one another if the two molecules are capable of forming an anti-parallel, double-stranded nucleic acid structure.
  • nucleic acid molecule In order for a nucleic acid molecule to serve as a primer or probe it need only be sufficiently complementary in sequence to be able to form a stable double-stranded structure under the particular solvent and salt concentrations employed.
  • T m The thermal melting point
  • stringent conditions are selected to be about 5 °C lower than the T m for the specific sequence and its complement at a defined ionic strength and pH.
  • severely stringent conditions can utilize a hybridization and/or wash at 1 , 2, 3, or 4 °C lower than the T m ;
  • moderately stringent conditions can utilize a hybridization and/or wash at 6, 7, 8, 9, or 10 °C lower than the T m ;
  • low stringency conditions can utilize a hybridization and/or wash at 1 1 , 12, 13, 14, 15, or 20 °C lower than the T m .
  • a substantially homologous sequence is a nucleic acid molecule that will specifically hybridize to the complement of the nucleic acid molecule to which it is being compared under high stringency conditions.
  • Appropriate stringency conditions which promote DNA hybridization for example, 6X sodium chloride/sodium citrate (SSC) at about 45 °C, followed by a wash of 2X SSC at 50 °C, are known to those skilled in the art or can be found in Ausubel et al. (1995), 6.3.1 -6.3.6.
  • stringent conditions will be those in which the salt concentration is less than about 1 .5 M Na ion, typically about 0.01 to 1.0 M Na ion concentration (or other salts) at pH 7.0 to 8.3 and the temperature is at least about 30 °C for short probes (e.g., 10 to 50 nucleotides) and at least about 60 °C for long probes (e.g., greater than 50 nucleotides).
  • Stringent conditions may also be achieved with the addition of a destabilizing agent such as formamide.
  • Exemplary high stringency conditions include hybridization in 50% formamide, 1 M NaCI, 1 % SDS at 37 °C, and a wash in 0.1 X SSC at 60 to 65 °C.
  • a nucleic acid of the disclosure may specifically hybridize to one or more of the nucleic acid molecules unique to the DP- 032218-9 event or complements thereof or fragments of either under moderately stringent conditions.
  • Methods of alignment of sequences for comparison are well known in the art. Thus, the determination of percent identity between any two sequences can be accomplished using a mathematical algorithm. Non-limiting examples of such mathematical algorithms are the algorithm of Myers and Miller (1988) CABIOS 4:1 1-17; the local homology algorithm of Smith et al. (1981 ) Adv. Appl. Math.
  • Computer implementations of these mathematical algorithms can be utilized for comparison of sequences to determine sequence identity. Such implementations include, but are not limited to: CLUSTAL in the PC/Gene program (available from Intelligenetics, Mountain View, California); the ALIGN program (Version 2.0); the ALIGN PLUS program (version 3.0, copyright 1997); and GAP, BESTFIT, BLAST, FASTA, and TFASTA in the Wisconsin Genetics Software Package, Version 10 (available from Accelrys, 9685 Scranton Road, San Diego, CA 92121 , USA). Alignments using these programs can be performed using the default parameters.
  • the CLUSTAL program is well described by Higgins and Sharp, Gene 73: 237-244 (1988); Higgins and Sharp, CABIOS 5: 151 -153 (1989); Corpet, et al., Nucleic Acids Research 16: 10881-90 (1988); Huang, et al., Computer Applications in the Biosciences 8: 155-65 (1992), and Pearson, et al., Methods in Molecular Biology 24: 307-331 (1994).
  • the ALIGN and the ALIGN PLUS programs are based on the algorithm of Myers and Miller (1988) supra.
  • the BLAST programs of Altschul et al. (1990) J. Mol. Biol. 215:403 are based on the algorithm of Karlin and Altschul (1990) supra.
  • the BLAST family of programs which can be used for database similarity searches includes: BLASTN for nucleotide query sequences against nucleotide database sequences; BLASTX for nucleotide query sequences against protein database sequences; BLASTP for protein query sequences against protein database sequences; TBLASTN for protein query sequences against nucleotide database sequences; and TBLASTX for nucleotide query sequences against nucleotide database sequences. See, Ausubel, et al., (1995). Alignment may also be performed manually by visual inspection.
  • Gapped BLAST in BLAST 2.0
  • PSI-BLAST in BLAST 2.0
  • the default parameters of the respective programs e.g., BLASTN for nucleotide sequences, BLASTX for proteins
  • percentage of sequence identity means the value determined by comparing two optimally aligned sequences over a comparison window, wherein the portion of the polynucleotide sequence in the comparison window may comprise additions or deletions (i.e., gaps) as compared to the reference sequence (which does not comprise additions or deletions) for optimal alignment of the two sequences. The percentage is calculated by determining the number of positions at which the identical nucleic acid base or amino acid residue occurs in both sequences to yield the number of matched positions, dividing the number of matched positions by the total number of positions in the window of comparison, and multiplying the result by 100 to yield the percentage of sequence identity.
  • Nucleic acid amplification can be accomplished by any of the various nucleic acid amplification methods known in the art, including PCR.
  • a variety of amplification methods are known in the art and are described, inter alia, in U.S. Pat. Nos. 4,683,195 and 4,683,202 and in Innis et al., (1990) supra.
  • PCR amplification methods have been developed to amplify up to 22 Kb of genomic DNA and up to 42 Kb of bacteriophage DNA (Cheng et al., Proc. Natl. Acad. Sci. USA 91 :5695-5699, 1994). These methods as well as other methods known in the art of DNA amplification may be used in the practice of the embodiments of the present disclosure. It is understood that a number of parameters in a specific PCR protocol may need to be adjusted to specific laboratory conditions and may be slightly modified and yet allow for the collection of similar results. These adjustments will be apparent to a person skilled in the art.
  • a single-stranded PCR product can be hybridized to the immobilized oligonucleotide and serve as a template for a single base extension reaction using a DNA polymerase and labeled ddNTPs specific for the expected next base.
  • Readout may be fluorescent or ELISA-based. A signal indicates presence of the insert/flanking sequence due to successful amplification, hybridization, and single base extension.
  • an oligonucleotide is designed that overlaps the adjacent DNA and insert DNA junction.
  • the oligonucleotide is hybridized to a single-stranded PCR product from the region of interest (one primer in the inserted sequence and one in the flanking sequence) and incubated in the presence of a DNA polymerase, ATP, sulfurylase, luciferase, apyrase, adenosine 5' phosphosulfate and luciferin.
  • dNTPs are added individually and the incorporation results in a light signal which is measured.
  • a light signal indicates the presence of the transgene insert/flanking sequence due to successful amplification, hybridization, and single or multi-base extension.
  • 9:492-498 is also a method that can be used to detect an amplicon of the disclosure.
  • an oligonucleotide is designed which overlaps the flanking and inserted DNA junction.
  • the oligonucleotide is hybridized to a single-stranded PCR product from the region of interest (one primer in the inserted DNA and one in the flanking DNA sequence) and incubated in the presence of a DNA polymerase and a fluorescent-labeled ddNTP. Single base extension results in incorporation of the ddNTP.
  • Incorporation can be measured as a change in polarization using a fluorometer. A change in polarization indicates the presence of the transgene insert/flanking sequence due to successful amplification, hybridization, and single base extension.
  • Taqman ® PE Applied Biosystems, Foster City, Calif.
  • a FRET oligonucleotide probe is designed which overlaps the flanking and insert DNA junction.
  • the FRET probe and PCR primers are cycled in the presence of a thermostable polymerase and dNTPs.
  • Hybridization of the FRET probe results in cleavage and release of the fluorescent moiety away from the quenching moiety on the FRET probe.
  • a fluorescent signal indicates the presence of the flanking/transgene insert sequence due to successful amplification and hybridization.
  • Molecular beacons have been described for use in sequence detection as described in Tyangi et al. (1996) Nature Biotech. 14:303-308. Briefly, a FRET oligonucleotide probe is designed that overlaps the flanking and insert DNA junction. The unique structure of the FRET probe results in it containing secondary structure that keeps the fluorescent and quenching moieties in close proximity.
  • the FRET probe and PCR primers are cycled in the presence of a thermostable polymerase and dNTPs.
  • hybridization of the FRET probe to the target sequence results in the removal of the probe secondary structure and spatial separation of the fluorescent and quenching moieties.
  • a fluorescent signal results. A fluorescent signal indicates the presence of the flanking/transgene insert sequence due to successful amplification and hybridization.
  • a hybridization reaction using a probe specific to a sequence found within the amplicon is yet another method used to detect the amplicon produced by a PCR reaction.
  • Maize event DP-032218-9 is effective against insect pests including insects selected from the orders: Coleoptera, Diptera, Hymenoptera, Lepidoptera, Mallophaga, Homoptera, Hemiptera, Orthoptera, Thysanoptera, Dermaptera, Isoptera, Anoplura, Siphonaptera, Trichoptera, etc., particularly Coleoptera and Lepidoptera.
  • Insects of the order Lepidoptera include, but are not limited to, armyworms, cutworms, loopers, and heliothines in the family Noctuidae: Agrotis ipsilon Hufnagel (black cutworm); A. orthogonia Morrison (western cutworm); A. segetum Denis & Schiffermuller (turnip moth); A. subterranea Fabricius (granulate cutworm); Alabama argillacea Hubner (cotton leaf worm); Anticarsia gemmatalis Hubner (velvetbean caterpillar); Athetis mindara Barnes and McDunnough (rough skinned cutworm); Earias insulana Boisduval (spiny bollworm); E.
  • vittella Fabricius (spotted bollworm); Egira (Xylomyges) curialis Grote (citrus cutworm); Euxoa messoria Harris (darksided cutworm); Helicoverpa armigera Hubner (American bollworm); H. zea Boddie (corn earworm or cotton bollworm); Heliothis virescens Fabricius (tobacco budworm); Hypena scabra Fabricius (green cloverworm); Hyponeuma taltula Schaus; (Mamestra configurata Walker (bertha armyworm); M.
  • brassicae Linnaeus (cabbage moth); Melanchra picta Harris (zebra caterpillar); Mocis latipes Guenee (small mocis moth); Pseudaletia unipuncta Haworth (armyworm); Pseudoplusia includens Walker (soybean looper); Richia albicosta Smith (Western bean cutworm); Spodoptera frugiperda JE Smith (fall armyworm); S. exigua Hubner (beet armyworm); S.
  • litura Fabricius tobacco cutworm, cluster caterpillar
  • Trichoplusia ni Hubner cabbage looper
  • borers, casebearers, webworms, coneworms, and skeletonizers from the families Pyralidae and Crambidae such as Achroia grisella Fabricius (lesser wax moth); Amyelois transitella Walker (naval orangeworm); Anagasta kuehniella Zeller (Mediterranean flour moth); Cadra cautella Walker (almond moth); Chilo partellus Swinhoe (spotted stalk borer); C. suppressalis Walker (striped stem/rice borer); C.
  • variana Fernald Eastern blackheaded budworm
  • Adoxophyes orana Fischer von Rosslerstamm sumr fruit tortrix moth
  • Archips spp. including A. argyrospila Walker (fruit tree leaf roller) and A. rosana Linnaeus (European leaf roller); Argyrotaenia spp.; Bonagota salubricola Meyrick (Brazilian apple leafroller); Choristoneura spp.; Cochylis hospes Walsingham (banded sunflower moth); Cydia latiferreana Walsingham (filbertworm); C.
  • Selected other agronomic pests in the order Lepidoptera include, but are not limited to, Alsophila pometaria Harris (fall cankerworm); Anarsia lineatella Zeller (peach twig borer); Anisota senatoria J.E.
  • fiscellaria lugubrosa Hulst (Western hemlock looper); Leucoma salicis Linnaeus (satin moth); Lymantria dispar Linnaeus (gypsy moth); Malacosoma spp.; Manduca quinquemaculata Haworth (five spotted hawk moth, tomato hornworm); M.
  • hemipterus sericeus Olivier (silky cane weevil); Sitophilus granarius Linnaeus (granary weevil); S. oryzae Linnaeus (rice weevil); Smicronyx fulvus LeConte (red sunflower seed weevil); S. sordidus LeConte (gray sunflower seed weevil); Sphenophorus maidis Chittenden (maize billbug); S.
  • livis Vaurie salivacane weevil
  • Rhabdoscelus obscurus Boisduval New Guinea sugarcane weevil
  • flea beetles cucumber beetles, rootworms, leaf beetles, potato beetles, and leafminers in the family Chrysomelidae including, but not limited to: Chaetocnema ectypa Horn (desert corn flea beetle); C. pulicaria Melsheimer (corn flea beetle); Colaspis brunnea Fabricius (grape colaspis); Diabrotica barberi Smith & Lawrence (northern corn rootworm,); D.
  • latifrons LeConte (June beetle); Popillia japonica Newman (Japanese beetle); Rhizotrogus majalis Razoumowsky (European chafer); carpet beetles from the family Dermestidae; wireworms from the family Elateridae, Eleodes spp., Melanotus spp. including M.
  • Agromyza parvicornis Loew (corn blotch leafminer); midges including, but not limited to: Contarinia sorghicola Coquillett (sorghum midge); Mayetiola destructor Say (Hessian fly); Neolasioptera murtfeldtiana Felt, (sunflower seed midge); Sitodiplosis mosellana Gehin (wheat midge); fruit flies (Tephritidae), Oscinella frit Linnaeus (frit flies); maggots including, but not limited to: Delia spp. including Delia platura Meigen (seedcorn maggot);
  • D. coarctata Fallen (wheat bulb fly); Fannia canicularis Linnaeus, F. femoralis Stein (lesser house flies); Meromyza americana Fitch (wheat stem maggot); Musca domestica Linnaeus (house flies); Stomoxys calcitrans Linnaeus (stable flies)); face flies, horn flies, blow flies, Chrysomya spp.; Phormia spp.; and other muscoid fly pests, horse flies Tabanus spp.; bot flies Gastrophilus spp.; Oestrus spp.; cattle grubs Hypoderma spp.; deer flies Chrysops spp.; Melophagus ovinus Linnaeus (keds); and other Brachycera, mosquitoes Aedes spp.; Anopheles spp.; Culex spp.; black
  • Agronomically important members from the order Hemiptera include, but are not limited to: Acrosternum hilare Say (green stink bug); Acyrthisiphon pisum Harris (pea aphid); Adelges spp. (adelgids); Adelphocoris rapidus Say (rapid plant bug); Anasa tristis De Geer (squash bug); Aphis craccivora Koch (cowpea aphid); A. fabae Scopoli (black bean aphid); A. gossypii Glover (cotton aphid, melon aphid); A. maidiradicis Forbes (corn root aphid); A.
  • pomi De Geer (apple aphid); A. spiraecola Patch (spirea aphid); Aulacaspis tegalensis Zehntner (sugarcane scale); Aulacorthum solani Kaltenbach (foxglove aphid); Bemisia tabaci Gennadius (tobacco whitefly, sweetpotato whitefly); B.
  • argentifolii Bellows & Perring (silverleaf whitefly); Blissus leucopterus leucopterus Say (chinch bug); Blostomatidae spp.; Brevicoryne brassicae Linnaeus (cabbage aphid); Cacopsylla pyricola Foerster (pear psylla); Calocoris norvegicus Gmelin (potato capsid bug); Chaetosiphon fragaefolii Cockerell (strawberry aphid); Cimicidae spp.; Coreidae spp.; Corythuca gossypii Fabricius (cotton lace bug); Cyrtopeltis modesta Distant (tomato bug); C.
  • Hesperus Knight (Western tarnished plant bug); L. pratensis Linnaeus (common meadow bug); L. rugulipennis Poppius (European tarnished plant bug); Macrosiphum euphorbiae Thomas (potato aphid); Macrosteles quadrilineatus Forbes (aster leafhopper); Magicicada septendecim Linnaeus (periodical cicada); Mahanarva fimbriolata Stal (sugarcane spittlebug); M.
  • nigropictus Stal (rice leafhopper); Nezara viridula Linnaeus (southern green stink bug); Nilaparvata lugens Stal (brown planthopper); Nysius ericae Schilling (false chinch bug); Nysius raphanus Howard (false chinch bug); Oebalus pugnax Fabricius (rice stink bug); Oncopeltus fasciatus Dallas (large milkweed bug); Orthops campestris Linnaeus; Pemphigus spp.
  • citricida Kirkaldy (brown citrus aphid); Trialeurodes abutiloneus (bandedwinged whitefly) and T. vaporariorum Westwood (greenhouse whitefly); Trioza diospyri Ashmead (persimmon psylla); and Typhlocyba pomaria McAtee (white apple leafhopper).
  • Additional arthropod pests covered include: spiders in the order Araneae such as Loxosceles reclusa Gertsch & Mulaik (brown recluse spider); and the Latrodectus mactans Fabricius (black widow spider); and centipedes in the order Scutigeromorpha such as Scutigera coleoptrata Linnaeus (house centipede).
  • insect pests of the order Isoptera are of interest, including those of the Termitidae family, such as, but not limited to, Cornitermes cumulans Kollar, Cylindrotermes nordenskioeldi Holmgren and Pseudacanthotermes militaris Hagen (sugarcane termite); as well as those in the Rhinotermitidae family including, but not limited to Heterotermes tenuis Hagen.
  • Insects of the order Thysanoptera are also of interest, including but not limited to thrips, such as Stenchaetothrips minutus van Deventer (sugarcane thrips).
  • Maize (Zea mays L.) event DP-032218-9 was produced by Agrobacterium- mediated transformation with plasmid PHP36676.
  • the T-DNA region of the plasmid sequence is provided in SEQ ID NO: 1.
  • a summary of the genetic elements and their positions on plasmid PHP36676 and on the T-DNA are described in Table 2.
  • the T-DNA of plasmid PHP36676 contains four gene cassettes.
  • the first cassette contains the proprietary cry2A.127 gene, a Cry2Ab-like coding sequence that has been functionally optimized using DNA shuffling and directed mutagenesis techniques.
  • the 634 residue protein produced by expression of the cry2A.127 sequence is targeted to maize chloroplasts through the addition of a 56 amino acid codon-optimized synthetic chloroplast targeting peptide (CTP) as well as 4 synthetic linker amino acids, resulting in a total length of 694 amino acids (approximately 77 kDa) for the precursor protein (the Cry2A.127 CTP sequence is cleaved upon insertion into the chloroplast, resulting in a mature protein of approximately 71 kDa.
  • CTP chloroplast targeting peptide
  • cry2A.127 gene and attached transit peptide is controlled by the Citus Yellow Mosaic Virus (CYMV; Genbank accession AF347695.1 ) promoter along with a downstream copy of the maize adh ⁇ intron (Dennis et al., 1984). Transcription of the cry2A.127 gene cassette is terminated by the downstream presence of the Arabidopsis thaliana ubiquitin 3 (UBQ3) termination region (Callis et al., 1995).
  • CYMV Citus Yellow Mosaic Virus
  • Genbank accession AF347695.1 a downstream copy of the maize adh ⁇ intron
  • a 2.2 kB fragment corresponding to the 3' un-translated region from an Arabidopsis ribosomal protein gene (TAIR accession AT3G28500; Salanoubat et al., 2000) is located between the cry2A.127 and cry1A.88 cassettes in order to eliminate any potential read thru transcripts.
  • Three other termination regions are present between the second and third cassettes; the 27 kD gamma zein terminator originally isolated from maize line W64A (Das et al., 1991 ), a genomic fragment of Arabidopsis thaliana chromosome 4 containing the Ubiquitin-14 (UBQ14) 3'UTR and terminator (Mayer et al., 1999) and the termination sequence from the maize In2-1 gene (Hershey and Stoner, 1991 ).
  • the third cassette contains the vip3Aa20 gene, which codes for a synthetic version of the insecticidal Vip3Aa20 protein (present in the approved Syngenta event MIR162; Estruch et al. , 1996). Expression of the vip3Aa20 gene is controlled by the the maize polyubiquitin promoter, including the 5' untranslated region and intron 1 (Christensen et al., 1992).
  • the terminator for the vip3Aa20 gene is the 3' terminator sequence from the proteinase inhibitor II gene of Solanum tuberosum ⁇ pinW terminator) (Keil et al., 1986; An et al., 1989).
  • the Vip3Aa20 protein is 789 amino acid residues in length with an approximate molecular weight of 88 kDa.
  • the fourth and final gene cassette contains a version of the phosphinothricin acetyl transferase gene (mo-pat) from Streptomyces viridochromogenes (Wohlleben et al., 1988) that has been optimized for expression in maize.
  • the pat gene expresses the phosphinothricin acetyl transferase enzyme (PAT) that confers tolerance to phosphinothricin.
  • the PAT protein is 183 amino acids residues in length and has a molecular weight of approximately 21 kDa. Expression of the mo-pat gene is controlled by a second copy of the maize polyubiquitin promoter/5'UTR/intron in conjunction with a second copy of the pinW terminator.
  • Table 2 Genetic Elements in the T-DNA Region of Plasmid PHP36676
  • Immature embryos of maize (Zea mays L.) were aseptically removed from the developing caryopsis nine to eleven days after pollination and inoculated with Agrobacterium tumefaciens strain LBA4404 containing plasmid PHP36676, essentially as described in Zhao et al., 2001.
  • the T-DNA region of PHP36676 was inserted into the 032218 maize event. After three to six days of embryo and Agrobacterium co-cultivation on solid culture medium with no selection, the embryos were then transferred to a medium without herbicide selection but containing carbenicillin for selection against Agrobacterium.
  • PCR analysis was conducted on samples taken from the TO plantlets for the presence of a single copy cry1A.88, cry2A.127, mo-pat and vip3Aa20 transgenes from the PHP36676 T-DNA and the absence of certain Agrobacterium binary vector backbone sequences by PCR. Plants that were determined to be single copy for the inserted genes and negative for vector backbone sequences were selected for further greenhouse propagation and trait efficacy confirmation.
  • the real-time PCR reaction exploits the 5' nuclease activity of the hot-start DNA polymerase.
  • Two primers SEQ ID NO: 2 and SEQ ID NO: 3
  • one probe SEQ ID NO: 4
  • the reporter dye is cleaved from the annealed probe by the polymerase, emitting a fluorescent signal that intensifies in each subsequent cycle.
  • the cycle at which the emission intensity of the sample rises above the detection threshold is referred to as the C T value.
  • the C T calculated by the instrument is termed "undetermined,” and is equivalent to a CT value of 40.00 due to assay termination at 40 cycles.
  • each insert/plant genomic DNA junction is unique. This information could be used for identification of the event.
  • the forward primer was designed at the maize genome, the reverse primer at the insert, and the probe between the forward and reverse primers. .
  • Example 3 Sequence Characterization of Insert and Genomic Flanking Regions of Maize Event DP-032218-9
  • Maize (Zea mays L.) event DP-032218-9 has been modified by the insertion of the T-DNA region from plasmid PHP36676 which contains four gene cassettes as disclosed above. Expression of the Vip3Aa20, Cry2A.127, and Cry1A.88 proteins confers resistance to certain lepidopteran insects.
  • Total genomic DNA was extracted from approximately 1 gram of frozen leaf tissue.
  • the PHP36676 T-DNA insert/flanking genomic border regions were amplified by PCR. Each PCR fragment was then cloned into a commercially available plasmid vector and characterized by Sanger DNA sequencing. Individual sequence reads were assembled and manually inspected for accuracy and quality. A consensus sequence was generated by majority-rule.
  • the resulting sequence comprising the genomic 5' flanking sequence, inserted fragment from PHP36676, and the genomic 3' flanking sequence is shown in SEQ ID NO: 5.
  • the 5' flanking genomic region has 2330 nucleotides from 1 -2330 bp of SEQ ID NO: 5 and the 3' flanking genomic region has 2123 nucleotides from 26550- 28672 bp of SEQ ID NO: 5.
  • 24 bp of Right Border were deleted and 23 bp of Left Border were deleted from the PHP36676 (SEQ ID NO: 1 ) insert after transformation, which is reflected in SEQ ID NO: 5.
  • the event-specific PCR assay for DP-032218-9 maize was designed at the 3' junction between the genomic DNA and the 32218 insert.
  • the reverse primer (SEQ ID NO: 2) is situated within maize genomic DNA.
  • the forward primer (SEQ ID NO: 3) is situated within the inserted DNA and the probe (SEQ ID NO: 4) spans the junction.
  • this event-specific PCR assay for 32218 maize will be referred to as the 32218 assay.
  • This method event-specific real-time qualitative Taqman® PCR was developed for DNA template extracted from maize tissues, seed and grain containing both genetically modified and conventional maize for use on both a Roche LC480 Real-Time PCR system and an Applied Biosystems VNA7 Real-Time PCR system.
  • Table 3 shows the 32218 assay primers and resulting amplicon (SEQ ID NO: 12).
  • Table 4 shows the preparation of the 32218 assay mix.
  • Table 5 shows the PCR cycle profile for the 32218 assay.
  • the resulting DP-32218-9 assay amplicon sequence (Length: 65 bp) is shown in SEQ ID NO:
  • Primers to support assay mixture are at a working concentration of 200 ⁇ ; probes to support assay mixture are at a working concentration of ⁇ .
  • BSA Bovine Serum Albumin
  • the maize-specific reference PCR assay used for relative quantification is a pre- validated maize-specific PCR assay (EU-RL-GMFF, 2005) for Zea mays L. High Mobility Group (HMG) Protein A gene ⁇ hmgA) (Krech et al. , Gene 234: 45-501999).
  • HMG High Mobility Group
  • the HMG assay amplifies a 79 bp product based upon GenBank Accession No. AJ131373.
  • Table 6 shows the HMG assay primers and resulting amplicon (SEQ ID NO: 16).
  • Table 7 shows the preparation of the HGM assay mix.
  • Table 8 shows the PCR cycle profile for the HGM assay.
  • Table 9 shows the Genomic Controls for the assay.
  • Primers to support assay mixture are at a working concentration of 200 ⁇ ; probes to support assay mixture are at a working concentration of ⁇ .
  • BSA Bovine Serum Albumin
  • the PCR product is measured during each cycle (real-time) by means of a target- specific oligonucleotide probe labeled with two fluorescent dyes: 6-carboxyfluorescein (FAMTM) was used as a reporter dye at the 5' end of target-specific oligonucleotide probe for the event-specific 32218 maize assay and 4,7,2'-trichloro-7'-phenyl-6- carboxyfluorescein (VI C®) a reporter dye at the 5' end of target-specific oligonucleotide probe for the HMG assay and a non-fluorescent quencher dye attached to an minor groove binding moiety (MGB) was used at the 3' end.
  • FAMTM 6-carboxyfluorescein
  • VI C® 4,7,2'-trichloro-7'-phenyl-6- carboxyfluorescein
  • the 5' nuclease activity of Taq DNA polymerase cleaves the probe and liberates the fluorescent moiety during the amplification process.
  • the resulting increase in fluorescence during amplification is measured and recorded.
  • calculate the ACT by subtracting the assigned CT value of the target from the assigned CT value of the endogenous reference gene (calculated on a sample replicate basis).
  • BSA Bovine Serum Albumin
  • ⁇ ACj should fall between 0.7 and 1.3

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Abstract

La présente invention concerne des compositions d'ADN associées à des plantes de maïs transgéniques résistantes aux insectes. L'invention concerne également des essais permettant de détecter la présence de l'événement de maïs DP-032218-9 sur la base de la séquence d'ADN de la construction de recombinaison introduite dans le génome du maïs et des séquences d'ADN bordant le site d'introduction. L'invention concerne également des kits et des conditions pouvant être utilisés dans le cadre de la conduite des essais.
PCT/US2014/032526 2013-01-25 2014-04-01 Événement de maïs dp-032218-9 et procédés de détection de celui-ci WO2015112182A1 (fr)

Priority Applications (3)

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BR112016017228A BR112016017228A2 (pt) 2013-01-25 2014-04-01 Métodos e kits para detectar ácidos nucleicos que são exclusivos para o evento dp-032218-9 e para a determinação da zigosidade de um ácido nucleico exclusivo para o evento dp-032218-9
US15/113,626 US20170204473A1 (en) 2013-01-25 2014-04-01 Maize event dp-032218-9 and methods for detection thereof
US16/167,630 US20190040413A1 (en) 2013-01-25 2018-10-23 Maize event dp-032218-9 and methods for detection thereof

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US201361756897P 2013-01-25 2013-01-25
USPCT/US2014/013007 2014-01-24
PCT/US2014/013007 WO2014116989A1 (fr) 2013-01-25 2014-01-24 Événement dp-032218-9 du maïs et ses procédés de détection

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WO2017042259A1 (fr) 2015-09-11 2017-03-16 Bayer Cropscience Aktiengesellschaft Variants de la hppd et procédé d'utilisation
CN112301145A (zh) * 2020-10-13 2021-02-02 中国农业科学院生物技术研究所 转基因水稻eb7001s-6的rpa检测引物与探针组合、试剂盒及检测方法
CN112301146A (zh) * 2020-10-13 2021-02-02 中国农业科学院生物技术研究所 转基因水稻b2a68-1的rpa检测引物与探针组合、试剂盒及检测方法
CN113025724A (zh) * 2021-03-10 2021-06-25 华南农业大学 一种鉴定小圆胸小蠹昆虫的双重pcr引物、方法及试剂盒

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WO2011075648A1 (fr) * 2009-12-18 2011-06-23 Dow Agrosciences Llc Procédés taqman en point final pour déterminer la zygosité du maïs comprenant des événements tc1507
WO2011075595A1 (fr) * 2009-12-17 2011-06-23 Pioneer Hi-Bred International, Inc. Maïs dp-043a47-3 et procédés de détection associés

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CA2691041A1 (fr) * 2009-01-23 2010-07-23 Pioneer Hi-Bred International, Inc. Melanges de proteines pour le controle des insectes du mais
WO2011075595A1 (fr) * 2009-12-17 2011-06-23 Pioneer Hi-Bred International, Inc. Maïs dp-043a47-3 et procédés de détection associés
WO2011075648A1 (fr) * 2009-12-18 2011-06-23 Dow Agrosciences Llc Procédés taqman en point final pour déterminer la zygosité du maïs comprenant des événements tc1507

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017042259A1 (fr) 2015-09-11 2017-03-16 Bayer Cropscience Aktiengesellschaft Variants de la hppd et procédé d'utilisation
CN112301145A (zh) * 2020-10-13 2021-02-02 中国农业科学院生物技术研究所 转基因水稻eb7001s-6的rpa检测引物与探针组合、试剂盒及检测方法
CN112301146A (zh) * 2020-10-13 2021-02-02 中国农业科学院生物技术研究所 转基因水稻b2a68-1的rpa检测引物与探针组合、试剂盒及检测方法
CN113025724A (zh) * 2021-03-10 2021-06-25 华南农业大学 一种鉴定小圆胸小蠹昆虫的双重pcr引物、方法及试剂盒

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