WO2019050042A1 - べと病抵抗性キャベツ及びその育成方法 - Google Patents
べと病抵抗性キャベツ及びその育成方法 Download PDFInfo
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- WO2019050042A1 WO2019050042A1 PCT/JP2018/033573 JP2018033573W WO2019050042A1 WO 2019050042 A1 WO2019050042 A1 WO 2019050042A1 JP 2018033573 W JP2018033573 W JP 2018033573W WO 2019050042 A1 WO2019050042 A1 WO 2019050042A1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/04—Processes of selection involving genotypic or phenotypic markers; Methods of using phenotypic markers for selection
- A01H1/045—Processes of selection involving genotypic or phenotypic markers; Methods of using phenotypic markers for selection using molecular markers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/06—Processes for producing mutations, e.g. treatment with chemicals or with radiation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/12—Processes for modifying agronomic input traits, e.g. crop yield
- A01H1/122—Processes for modifying agronomic input traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance
- A01H1/1245—Processes for modifying agronomic input traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for biotic stress resistance, e.g. pathogen, pest or disease resistance
- A01H1/1255—Processes for modifying agronomic input traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for biotic stress resistance, e.g. pathogen, pest or disease resistance for fungal resistance
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
- A01H5/02—Flowers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
- A01H5/10—Seeds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
- A01H5/12—Leaves
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/20—Brassicaceae, e.g. canola, broccoli or rucola
- A01H6/203—Brassica oleraceae, e.g. broccoli or kohlrabi
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- 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
- C12N15/8282—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 fungal resistance
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6888—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms
- C12Q1/6895—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for plants, fungi or algae
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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
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/13—Plant traits
Definitions
- the present invention relates to cabbage which is resistant to downy mildew and a method for growing the cabbage. More specifically, the present invention relates to a cabbage having a downy mildew resistance gene which is located in the vicinity of the gene locus shown by SEQ ID NO: 1 to SEQ ID NO: 7, and a method for growing the same.
- Downy mildew in cruciferous crops is caused by Hyaloperonospora brassicae, which is a kind of filamentous fungus, and includes Brassica oleracea species such as cabbage, cabbage, cauliflower, cauliflower, broccoli, kohlrabies, etc. It causes damage to many crops such as Brassica rapa species such as Chinese cabbage, turnip and Komatsuna, and Brassica napus species such as rapeseed.
- Symptoms of this disease are mainly found in the leaves, and yellowish to pale brown border unclear lesions are formed and gradually spread, and the leaves eventually die, thus affecting the growth (Fig. 1). .
- brown or black discoloration occurs inside and outside the tissue, which significantly reduces commercial value.
- the spread of the disease is rapid and develops into a large damage, so that control with a drug such as a bactericide is usually performed.
- Cabbage (B. oleracea var. Capitata), which is one of the most important crops of Brassica oleracea, has various varieties and varieties, which are grown in various countries around the world. ing.
- Non-Patent Document 1 J. Amer Soc Hort Sci (2001) vol 126 p 727
- Non-Patent Document 2 Euphytica (2002) vol 128 p 405
- Euphytica (2003) vol 131 p 65 Non-Patent Document 3
- Broccoli is crossbred because it is the same type of brassica or oleracea as cabbage, but since it has many unnecessary traits when viewed from the side of cabbage, it is very difficult to handle as a breeding material.
- An object of the present invention is to provide a novel cabbage having excellent resistance to downy mildew and a method for cultivating such cabbage.
- the present inventors have now developed markers linked to downy mildew resistance factors, and by using them, from a combination of broccoli and cabbage, it is a commodity that is high as a cabbage while having downy mildew resistance factors. Succeeded in nurturing a line of value.
- the Brassica oleracea plants obtained by crossing broccoli and cabbage by the present inventors appeared as wild species in the first generation of hybrids and backcrossings. We then selected back markers linked to downy mildew resistance and applied a genome-wide marker to backcross the genome region unrelated to downy mildew to a cabbage-type genotype was successful in growing cabbage that is highly resistant to downy mildew.
- the present inventors have found a broccoli strain having mildew resistance corresponding to a wide range of races, and developed a marker linked to the mildew resistance factor possessed by the strain and utilized them. Proved that cabbage lines with high industrial value can be grown.
- By using the method for growing mildew-resistant cabbage or cabbage that is resistant to downy mildew provided by the present invention it is possible to reduce mildew resistance to cabbage which has conventionally been susceptible to downy mildew. It becomes possible to grant.
- the present invention is based on these findings.
- ⁇ 2> The downy mildew-resistant cabbage according to ⁇ 1> or a progeny thereof having a downy mildew-resistance gene which is located in the vicinity of a locus represented by any one or more of SEQ ID NO: 1 to SEQ ID NO: 7 .
- ⁇ 3> The downy mildew resistant cabbage according to ⁇ 1> or ⁇ 2>, which has a downy mildew resistance gene detectable by any one or more of the primers having the base sequences shown in SEQ ID NO: 8 to SEQ ID NO: 21 Or later generations.
- ⁇ 6> The downy mildew resistant cabbage according to any one of the above ⁇ 1> to ⁇ 4>, which is a downy mildew resistant gene found in a cabbage cultivar specified by Accession No. FERM BP-22344 The next generation.
- ⁇ 7> A part of the cabbage of any one of the above ⁇ 1> to ⁇ 6> or a plant of the later generation.
- ⁇ 8> The cabbage of any one of the above ⁇ 1> to ⁇ 6> or a seed of a progeny thereof.
- a method for growing downy mildew resistant cabbage comprising introducing downy mildew resistance to a desired cabbage from a Brassica oleracea plant resistant to downy mildew.
- Downy mildew caused by downy mildew resistant gene that is located in the vicinity of a locus shown in any one or more of SEQ ID NO: 1 to SEQ ID NO: 7 from Brassica oleracea plants having resistance to downy mildew A method for growing downy mildew resistant cabbage, which comprises introducing resistance into desired cabbage.
- ⁇ 14> The method for growing ⁇ 10> or ⁇ 11>, wherein the Brassica oleracea plant having resistance to downy mildew is a cabbage variety specified by Accession No. FERM BP-22344.
- ⁇ 17> The method according to ⁇ 16>, wherein the primer is represented by any one or more of SEQ ID NO: 8 to SEQ ID NO: 21.
- a marker capable of detecting downy mildew resistance loci in Brassica oleracea plants which has any one of the nucleotide sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7
- a primer set capable of detecting downy mildew resistance loci in Brassica oleracea plants comprising any one or more of the primers having the nucleotide sequences shown in SEQ ID NO: 8 to SEQ ID NO: 21.
- a method for detecting downy mildew resistance in Brassica oleracea plants including:
- the mildew-resistant cabbage of the present invention has excellent resistance to downy mildew caused by Hyaloperonospora brassicae . Further, by using the mildew-resistant cabbage according to the present invention as a material, it is possible to further grow a new mildew-resistant cabbage line. Furthermore, by using the marker linked to downy mildew resistance according to the present invention, downy mildew resistance can be detected or selected without carrying out a vaccination test. By cultivating cabbage lines grown according to the present invention, cabbage cultivation in areas where cultivation is considered difficult due to the occurrence of downy mildew becomes possible, and the labor and cost of drug dispersion in conventionally required cultivation are reduced. can do. In addition, the mildew-resistant cabbage according to the present invention makes it possible to ship fruits and vegetables reduced in the number of times of drug dispersion, and also to reduce the incidence of diseases, so that fruits and vegetables having a high quality rate are high. It is possible to harvest
- Example 5 The indication of the onset disease score in the field trial manufacture of Example 5 is shown.
- strain grown by this invention (Example 5) is shown. It shows the appearance of “CB-20” (the original parent line) and an isogenic line into which a mildew disease resistance factor has been introduced.
- FIG. 8 shows the nucleotide sequences of markers (DMTLR-1 to DMTLR-7).
- FIG. 8 shows the nucleotide sequences of markers (DMTLR-1 to DMTLR-7).
- FIG. 8 shows the nucleotide sequences of markers (DMTLR-1 to DMTLR-7).
- FIG. 8 shows the nucleotide sequences of markers (DMTLR-1 to DMTLR-7).
- FIG. 8 shows the nucleotide sequences of markers (DMTLR-1 to DMTLR-7).
- FIG. 8 shows the nucleotide sequences of markers (DMTLR-1 to DMTLR-7).
- the present invention relates to cabbage which is resistant to downy mildew (dwarf disease resistant cabbage) or its progeny.
- progeny also includes crosses obtained by crossing the downy mildew-resistant cabbage according to the present invention with a Brassica oleracea plant that can be crossed with the plant. Therefore, for example, by using the downy mildew-resistant cabbage according to the present invention as a pollen parent (male parent) and crossing the plant with a Brassica oleracea plant as a seed parent (female parent), as "progeny”. What is obtained is also included.
- progeny also includes, for example, plants by cell fusion of a mildew-resistant cabbage according to the present invention and a plant that can be fused with the cabbage, and interspecific hybrid plants.
- Brusha oleracea plant means a plant of the family Brassicaceae, which is a plant of the genus Brassica oleracea, and here, B. oleracea var. Capitata (cabbage), B. Oleracea var. Italica (broccoli), B. oleracea var. Botrytis (cauliflower), B. oleracea var. Gemmifera (male cabbage), B. oleracea var. Gongyloides (callrabies), B. oleracea var. Acephara (haboticales) And B. oleracea var. Albograbra (Kyran) and the like.
- “cabbage” is a plant species belonging to the Brassica oleracea species and is a plant species classified into B. oleracea var. Capitata.
- downy mildew means a disease caused by a fungus belonging to the family Peronosporaceae among oomycetes, preferably a disease caused by Hyaloperonospora brassicae . Therefore, resistance to downy mildew here means resistance to diseases caused by such fungi.
- the mildew-resistant cabbage according to the present invention is resistant to downy mildew (preferably Hyaloperonospora brassicae ), and exhibits single factor dominant expression.
- downy mildew preferably Hyaloperonospora brassicae
- the “parental line” is a line grown to produce a hybrid variety, and a hybrid variety is usually prepared by combining two or more parent strains having different phenotypes as materials. .
- the "downy mildew resistance" in the present invention means resistance to the downy mildew fungus Hyaloperonospora brassicae , and more specifically, based on a factor which is located in the vicinity of SEQ ID NO: 1 to SEQ ID NO: 7 is there. That is, according to a preferred embodiment of the present invention, the downy mildew-resistant cabbage or the progeny thereof according to the present invention is located near the locus shown in any one or more of SEQ ID NO: 1 to SEQ ID NO: 7. It has a disease resistance gene.
- the base sequences represented by SEQ ID NO: 1 to SEQ ID NO: 7 are within a certain range of sequence identity, or It includes cases where it is in a range having partial mutations.
- Those skilled in the art can easily understand the equivalent sequence coverage of SEQ ID NO: 1 to SEQ ID NO: 7 itself. Therefore, for example, “shown in any one or more of SEQ ID NO: 1 to SEQ ID NO: 7” is used in a meaning which also includes the case where it is shown in any one or more of the base sequences of (a) to (c) below: Be done.
- A any one or more of the nucleotide sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7,
- B any one or more base sequences having a sequence identity of 95% or more with the base sequence shown in SEQ ID NO: 1 to SEQ ID NO: 7, and
- c the base sequence shown in SEQ ID NO: 1 to SEQ ID NO: 7 Any one or more base sequences in which one or more bases of S are deleted, substituted, inserted and / or added.
- the downy mildew-resistant cabbage or the progeny thereof according to the present invention is a gene represented by any one or more of the nucleotide sequences shown in (a) to (c) described above It can be said that it has a downy mildew resistance gene that sits in the vicinity of the locus.
- “having a sequence identity of 95% or more to the nucleotide sequence shown in SEQ ID NO: 1 to SEQ ID NO: 7” means the nucleotide sequence shown in SEQ ID NO: 1 to SEQ ID NO: 7 and BLAST , At least 95%, preferably at least 96%, more preferably at least 97%, as calculated using known algorithms for homology searches such as FASTA (eg, using default or default parameters) Even more preferably, it comprises a SEQ ID NO having a sequence identity of 98%, particularly preferably at least 99%.
- sequence identity means, for example, when two base (nucleotide) sequences are aligned (however, gaps may or may not be introduced), the same as the total number of bases including gaps. It refers to the percentage (%) of the number of bases.
- a plurality of one or more bases of the base sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 are deleted, substituted, inserted and / or added”. Is, for example, about 10, preferably 8, more preferably 6, more preferably 5, still more preferably 4, more preferably 3, more preferably 2, more preferably 2. It is preferably one, particularly one.
- SEQ ID NO: 1 to SEQ ID NO: 7 can be SEQ ID NO: 22 to 28, respectively.
- SEQ ID NOs: 22 to 28 contain sequences outside the sequences of SEQ ID NOs: 1 to 7 (including the sequences of the primers) sandwiched by the primers, and the present inventors found for the first time in Example 2 described later It is
- SEQ ID NOs: 22 to 28 only the portion of SEQ ID NOs: 1 to 7 contained in these sequences is the base sequence of (a) to (c) described above.
- SEQ ID NOs: 22 to 28 are also used in the meaning including the case represented by any one or more of the nucleotide sequences of (a ′) to (c ′) below: Ru.
- a ' any one or more of the nucleotide sequences shown in SEQ ID NO: 22 to SEQ ID NO: 28,
- B ' any one or more base sequences having a sequence identity of 95% or more with the base sequence shown in SEQ ID NO: 22 to SEQ ID NO: 28, and
- c' shown in SEQ ID NO: 22 to SEQ ID NO: 28 Any one or more base sequences in which one or more bases of the base sequence are deleted, substituted, inserted and / or added.
- “having a sequence identity of 95% or more to the nucleotide sequence shown in SEQ ID NO: 22 to SEQ ID NO: 28” means the nucleotide sequence shown in SEQ ID NO: 22 to SEQ ID NO. At least 95%, preferably at least 96%, more preferably at least 97 as calculated using known algorithms for homology searches such as BLAST, FASTA etc. (eg using default or default parameters) %, Even more preferably 98%, particularly preferably at least 99% of SEQ ID NO.
- nucleotide sequences shown in SEQ ID NO: 22 to SEQ ID NO: 28 have been deleted, substituted, inserted and / or added”.
- a plurality of is, for example, about 10, preferably 8, more preferably 6, more preferably 5, still more preferably 4, more preferably 3, more preferably 3. Two, particularly preferably one.
- “nearby” refers to the relationship between the position of the marker and the disease resistance gene, and the ordinary knowledge of those skilled in the art, to what extent the distance can be easily achieved by those skilled in the art. It is understandable. For example, depending on analysis conditions, it may be, for example, a distance of about 10 cM or less (e.g., 7 cM).
- a marker capable of detecting downy mildew resistance loci in Brassica oleracea plants which has any one of the nucleotide sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 Provided. Furthermore, downy mildew resistance in Brassica oleracea plants, which comprises assaying for the presence of downy mildew resistance genes using any one or more markers of the DNA sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 Also provided is a method of detecting
- any one of the base sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 is the above-mentioned (a) to (c) as long as downy mildew resistance genes can be identified. It may also include any one of the nucleotide sequences shown in
- the detection of these markers can be performed according to methods known to those skilled in the art, such as PCR method, real-time PCR method, RFLP method, LAMP method, SNPs genotyping chip method and the like.
- the DNA sequences represented by SEQ ID NO: 1 to SEQ ID NO: 7 have a downy mildew resistance gene detectable with one or more primers or primer pairs capable of amplification.
- the downy mildew-resistant cabbage or progeny thereof according to the present invention can be detected with any one or more of the primers having the nucleotide sequence shown in SEQ ID NO: 8 to SEQ ID NO: 21 It has a resistance gene.
- These primers are hereinafter sometimes referred to as "DMTLR markers".
- the DNA marker "having" the nucleotide sequence means that the marker has the nucleotide sequence.
- the DNA marker is substituted for any one or several (for example, 1, 2 or 3, preferably 1 or 2, more preferably 1) of the bases in the corresponding base sequence, It means that it may be deleted, added or deleted, or it may be a sequence that includes the corresponding base sequence as a part and retains a predetermined property. In such a case, the word “having” may be restated as "including.” In addition, in the case where substitution, deletion, addition or deletion of one base is permitted, "having" may be reworded as "consisting essentially of".
- the resistance to downy mildew mentioned here can be detected and confirmed by performing PCR using the primers shown by these nucleotide sequences 8 to 21.
- downy mildew resistance loci in Brassica oleracea plants can be detected, which comprises any one or more of the primers having the nucleotide sequences shown in SEQ ID NO: 8 to SEQ ID NO: 21 Primer sets are provided.
- a primer having any one or more of the markers having the base sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 or the base sequences shown in SEQ ID NO: 8 to SEQ ID NO: 21 There is provided a method of detecting downy mildew resistance in B. oleracea plants comprising using any one or more of If these DNA markers are used, it is possible to efficiently grow new cabbage lines resistant to downy mildew without performing selection by inoculation test.
- the mildew-resistant cabbage according to the present invention has the following features. (1) Specifically, a plant having the DNA sequence shown in SEQ ID NO: 1 to SEQ ID NO: 7 in the vicinity of a downy mildew resistance locus, and a plant exhibiting downy mildew resistance by having the allele thereof is there. (2) By using a line having the above sequence as a mating material, it becomes possible to grow a new cabbage parent line having mildew disease resistance.
- the DNA sequence located in the vicinity of may be selected, and a new marker may be designed and used for selection of resistant plants. Furthermore, by using markers near the downy mildew resistance locus, it is also possible to select individuals from which non-target traits linked to the downy disease resistance locus have been removed. (3) The cabbage of the present invention thus developed is resistant to the downy mildew, Hyaloperonospora brassicae, and thus reduces the labor and cost of disinfectant application for disease control during cultivation. be able to.
- the mildew-resistant cabbage or progeny thereof may be any of the following: 1) Downy mildew resistant cabbage, or progeny thereof, which is a downy mildew resistant gene is found in a broccoli cultivar specified by Accession No. FERM BP-22343; 2) A downy mildew resistant cabbage, or a progeny thereof, wherein the downy mildew resistance gene is found in a cabbage cultivar specified by Accession No. FERM BP-22344; and 3) under Accession No. FERM BP-22344 Hybrid first generation cabbage having resistance to downy mildew identified.
- the downy mildew resistance gene is "to be found” means that the downy mildew resistant cabbage or a progeny has the gene present in the specific cultivar. That is, the downy mildew resistant gene is found in the broccoli cultivar specified by accession number FERM BP-22343, and the downy mildew resistant cabbage, or the progeny thereof is specified by accession number FERM BP-22343 As long as it has a downy mildew resistance gene found in the broccoli cultivar to be used, it is a meaning including not only the broccoli cultivar specified by Accession No. FERM BP-22343 but any one.
- the present invention also relates to the downy mildew-resistant cabbage according to the present invention or a part of the progeny plants or their seeds.
- part of plant body includes organs such as flowers, leaves, stems and roots, or parts or tissues thereof, cells from these organs or tissues, and aggregates of cells.
- a method for growing downy mildew-resistant cabbage According to the present invention, the method for growing downy mildew-resistant cabbage according to the present invention is desired to be used for downy mildew resistance from Brassica oleracea plants having resistance to downy mildew. Including the introduction of cabbage.
- the "Brushka oleracea plant having resistance to downy mildew” is resistant to downy mildew, preferably downy mildew caused by Hyaloperonospora brassicae , against the onset of the disease and the progression of the disease after infection. It means a Brassica oleracea plant having, for example, an inoculation test of a prepared downy mildew (preferably Hyaloperonospora brassicae ) can be performed to determine whether it has resistance or not. More preferably, in this inoculation test, the plant-held resistance factor is a Brassica oleracea plant that exhibits single factor dominant expression.
- Example 1 an inoculation test is performed according to Example 1 to be described later, and it is confirmed whether it is a "Brushka oleracea plant having resistance to downy mildew" that can be used in the growing method of the present invention. Can.
- the "Brushka oleracea plant having resistance to downy mildew" is a Brassica oleracea plant other than cabbage.
- the “Brushka oleracea plant having resistance to downy mildew” is a broccoli variety specified by Accession No. FERM BP-22343 or a cabbage variety specified by Accession No. FERM BP-22344.
- introducing downy mildew resistance to a desired cabbage means downy mildew resistance possessed by the "Brushka oleracea plant having resistance to downy mildew”. Is introduced into the desired cabbage so that the cabbage becomes resistant to downy mildew.
- the “desired cabbage” is a cabbage which is not resistant to downy mildew, and can be crossed with the "Brushka oleracea plant having resistance to downy mildew", which is resistant to downy mildew It means cabbage that you want to introduce. Such cabbages have useful traits as cabbages.
- the downy mildew resistance referred to herein can be confirmed by a known means such as a downy mildew inoculation test, more specifically, it is shown in any one or more of SEQ ID NO: 1 to SEQ ID NO: 7 It is due to downy mildew resistance genes that are located near the gene locus.
- downy mildew resistance means that a gene capable of developing downy mildew resistance is introduced into a desired cabbage.
- introduction is carried out by crossing the "bristula oleracea plant having resistance to downy mildew" with the desired cabbage, and the desired crossbreeding from the cross progeny obtained. It can be carried out by selecting those having disease resistance and further conducting backcrossing with the cabbage as a backcrossing parent.
- SEQ ID NO: 1 to SEQ ID NO: 7 Based on the DNA marker prepared based on the public information, DNA sequences located in the vicinity of SEQ ID NO: 1 to SEQ ID NO: 7 may be selected, and markers may be newly designed and used for selection of resistant plants. Such markers include markers having any one of the base sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 described above, and primers having the base sequence shown in SEQ ID NO: 8 to SEQ ID NO: 21 . These confirmation means can also be used in the process of backcrossing to select for downy mildew resistant progeny.
- any one or more markers of any one of the DNA sequences shown in SEQ ID NO: 1 to SEQ ID NO: 7 or one or more markers capable of amplifying the DNA sequence Using the following primers or primer pairs to assay for the presence of downy mildew resistant genes. Furthermore, more preferably, the primer is any one or more of SEQ ID NO: 8 to SEQ ID NO: 21.
- the breeding method of the present invention carries out the introduction of downy mildew-resistant cabbage by continuously backcrossing the cabbage. More specifically, the breeding method of the present invention comprises crossing a Brassica oleracea plant having resistance to downy mildew with a desired cabbage, selecting a cross progeny having downy mildew resistance, and further selecting the desired cabbage. As a backcross parent, includes continuous backcrossing.
- backcrossing When backcrossing is performed, it is generally desirable to perform about 5 to 7 backcrossings.
- genome-wide DNA markers can be used to approach the backcrossing parent early.
- BC1F1 first generation of backcross
- the genome substitution rate of individuals is different, and if the size of the population is expanded, 90% or more of the genomic region may be the same gene as the return parent in some individuals. It is also possible to obtain individuals exhibiting a type. By selecting such individuals, it becomes possible to align regions other than the mildew disease resistance locus at the early stage with the same number of generations as the parent with a small number of generations.
- a DNA marker based on the information may be prepared to perform genotyping of each locus .
- RAPD Random Amplified Polymorphic DNA
- SRAP sequence-related amplified polymorphism
- AFLP Amplified fragment length polymorphism
- the downy mildew-resistant lines thus grown can be used not only as direct varieties, but also as parents or one-parent in the F1 seeding system.
- a method of producing an F1 strain which uses a mildew-resistant strain obtained by the breeding method of the present invention as a parent strain or a strain of one parent, and such Also provided is a method of seeding F1 seed.
- Example 1 Two species of downy mildew strains (strain Dm-A and strain Dm-B (of which strain Dm-B affects more varieties), using the broccoli genetic resources owned by Sakata seed, Inc. as materials Two lines (“BR-23" and "BR-35") of broccoli showing resistance to both were found.
- F1 means a hybrid first generation
- BC1 means a generation in which backcrossing is performed once. That is, “BC1F1” means a generation in which backcrossing was further performed once through hybrid first generation.
- the degree of onset was evaluated according to the following onset score for the first to third leaves of each individual. 0: no symptoms, 1: no brown spots, no sporulation, 2: slight sporulation on brown lesions, 3: Moderate sporulation, 4: abundant sporulation.
- Example 2 In Table 1, the F2 population (Mapping population -1, -2) and the BC1 F1 population (Mapping population -3, -4) in which resistance and sensitivity were found to be separated were used as materials by the Bulked Segregant Analysis method (BSA method) We searched for RAPD markers.
- BSA method Bulked Segregant Analysis method
- RAPD primers 1180 types of 10-mer primers designed by Operon and 460 types of 12-mer primers designed by BEX were used.
- For bulk DNA 4 resistant individuals and 4 susceptible individuals are selected from the population of Mapping population-4, and using those DNAs, bulk DNA of resistant individuals and bulk DNA of susceptible individuals was produced.
- RAPD Randomly Amplified Polymorphic DNA
- a DNA fragment amplified by RAPD was excised from an agarose gel and cloned, and then the nucleotide sequence was analyzed.
- the base sequences of the seven markers (DMTLR-1 to DMTLR-7) described above were identified (SEQ ID NO: 1 to SEQ ID NO: 7, respectively) (FIG. 8).
- the sequences of SEQ ID NOs: 22 to 28 are first specified, and these sequences each have the sequence of SEQ ID NOs: 1 to 7 (including the sequence of the SCAR primer) sandwiched between SCAR primers. there were.
- the underlined sequences in FIG. 8 are the SCAR primers, and the sequences (including the SCAR primers) sandwiched by the SCAR primers correspond to SEQ ID NOs: 1 to 7, respectively.
- pBluescript II SK obtained from Stratagene
- JM109 E. coli JM109, obtained from Toyobo Co., Ltd.
- a DNA sequencer ABI3130 manufactured by Applied Biosystems was used for the analysis of the base sequence.
- Primers were designed using “Primer 3” software (Primer design support software for polymerase chain reaction (PCR), open source software) so that the target sequence can be specifically amplified for markers whose nucleotide sequences have been decoded. (SEQ ID NOS: 8 to 21) (Table 2). Moreover, the result (electrophoresis figure) of the electrophoresis test of these each primer (marker) is shown in FIG. In addition, the marker developed in this way is called "a DMTLR marker" in this specification.
- Example 3 Using the same F2 population as Mapping population-2 used in Example 2, the resistance response to downy mildew strain Dm-A was also investigated. The size of the F2 population was 240 individuals (mapping population-5), and the responses of each individual to Dm-A were examined. As a result, separation as shown in Table 3 was shown. The inoculation test with strain Dm-A was carried out and evaluated in the same manner as the inoculation test of Example 1.
- Mapmaker 2.0 (Whitehead Institute), which is software for analyzing the linkage relation of markers, was used to analyze the linkage relation between phenotypes in the group and each marker.
- Example 4 In order to confirm whether or not the strain "BR-35" different from the resistant strain "BR-23" analyzed in Example 2 has the same resistance factor as the strain "BR-23”, a sensitive strain An F2 segregating population with “BR-13” was generated and an inoculation test with strain Dm-A was performed (Table 4). The inoculation test with strain Dm-A was carried out and evaluated in the same manner as the inoculation test of Example 1.
- Table 5 shows the results of classifying 180 individuals of mapping population-6 in Table 4 according to the genotype of the DNA marker DMTLR-1.
- the downy mildew resistance gene possessed by "BR-35” can be found in broccoli F1 cultivar "Sawa Yutaka” having "BR-35" as one parent.
- Example 5 Broccoli lines "BR-23” and “BR-35” owned by Sakata Seeds are used as materials for resistance to downy mildew, and four varieties of cabbage are used as cabbage to introduce the resistance
- One line each “CB-20”, “CB-35”, “CB-23” or “CB-97” is selected from each line, cold ball, spring line, ball line), and is used as a backcross parent line The mating test was done.
- BC backcrossing
- the broccoli lines "BR-23” and “BR-35” are crossed with cabbage lines “CB-20”, “CB-35”, “CB-23” and “CB-97” to produce F1 And DNA selection with DMTLR markers and continuous backcrossing were performed.
- selection with 20 types of RAPD primers was carried out, and in each backcross line, each back parent line “CB-20”, “CB-35”, “CB-23” And individuals showing a genotype close to "CB-97" were selected.
- these RAPD markers are backcross parent lines in BC2F1 generation in “CB-20” and BC3F1 generation in other “CB-35”, “CB-23” and “CB-97”. Individuals that matched completely with were selected.
- resistance and sensitivity are determined by the DMTLR marker, and for each genotype, either the Sakae Kakegawa Research Center or the Sakata Tanimitsu Breeding Center along with the respective back parent lines.
- the prototype was made in the field of either or both.
- Table 6 shows the result of trial manufacture in the field of a line in which downy mildew resistance factor was introduced to cabbage line "CB-20" and the evaluation result of the onset degree of downy mildew.
- An individual who is determined to have a downy mildew resistance factor by a DMTLR marker in a separated generation during backcrossing is determined to be resistant even if it is heterozygous and not to have a downy mildew resistance factor. The individual showed sensitivity.
- the phenotype also showed a grass figure very close to the back parent line "CB-20" of the deep leaf system.
- each disease level means the following condition. Disease onset degree 0: no lesion, 1: Fewer spots, 2: Medium number of lesions, 3: There are many lesions.
- Example 6 Furthermore, "DMR-CB-20" (the DM cabbage line grown above) which has been conferred with downy mildew resistance is used as a pollen parent in another promising cabbage line "CB-5" cytoplasmic male sterile line As a seed parent, F1 (breed trial name: SK3-005) was produced. The F1 strain was continuously manufactured at Sakata's Seed Kimitsu Breeding Station, and it was confirmed that downy mildew resistance was stably expressed. Thus, the first breeding of downy mildew resistant F1 cabbage cultivars was achieved.
- Patent Organism Depositary Center Korean, Kisarazu City, Chiba Prefecture 2-5 -8 Room 120
- original deposit International Deposited (Kiza, Kisarazu City, Chiba Prefecture 2-5 -8 Room 120) has been internationally deposited (original deposit) (Indication for identification given by the depositor: SSC-CSB-17-001, Accession No .: FERM BP-22344).
- the original F1 cultivar (the F1 cultivar obtained using the original parent line "CB-20") and the newly obtained cabbage F1 cultivar having the downy mildew resistance obtained (the downy mildew resistant)
- the introduced F1 varieties were compared.
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Abstract
Description
このため、べと病が多発する地域では、病害を低減させるために薬剤による防除を行う必要があり、そのために多大な労力やコストが費やされていた。このため、抵抗性育種素材の開発、及び抵抗性品種の開発が望まれていた。
<8> 前記<1>~<6>のいずれかのキャベツまたはその後代の種子。
本発明は、前記したように、べと病に対する抵抗性を有するキャベツ(べと病抵抗性キャベツ)、またはその後代に関する。
ここで「親系統」とは、交雑品種を作製するために育成された系統であり、通常は表現型が相違する2種類以上の親系統を材料として、これらを掛け合わせた交雑品種を作製する。
すなわち、本発明の好ましい態様によれば、本発明によるべと病抵抗性キャベツまたはその後代は、配列番号1~配列番号7のいずれか1以上で示される遺伝子座の近傍に座乗するべと病抵抗性遺伝子を有する。
したがって、例えば、「配列番号1~配列番号7のいずれか1以上で示される」は、以下の(a)~(c)の塩基配列のいずれか1以上で示される場合も包含する意味で使用される。
(a) 配列番号1~配列番号7に示される、いずれか1以上の塩基配列、
(b) 配列番号1~配列番号7に示される塩基配列と95%以上の配列同一性を有する、いずれか1以上の塩基配列、および
(c) 配列番号1~配列番号7に示される塩基配列の1個または複数個の塩基が、欠失、置換、挿入、および/または付加された、いずれか1以上の塩基配列。
(a’) 配列番号22~配列番号28に示される、いずれか1以上の塩基配列、
(b’) 配列番号22~配列番号28に示される塩基配列と95%以上の配列同一性を有する、いずれか1以上の塩基配列、および
(c’) 配列番号22~配列番号28に示される塩基配列の1個または複数個の塩基が、欠失、置換、挿入、および/または付加された、いずれか1以上の塩基配列。
また、配列番号1~配列番号7で示したDNA配列のいずれか1以上のマーカーを用いて、べと病抵抗性遺伝子の存在を検定することを含む、ブラシカ・オレラセア植物におけるべと病抵抗性の検出方法も提供される。
本発明のより好ましい態様によれば、本発明によるべと病抵抗性キャベツまたはその後代は、配列番号8~配列番号21に示される塩基配列を有するプライマーのいずれか1以上で検出可能なべと病抵抗性遺伝子を有する。なおこれらプライマーは、以下において、「DMTLRマーカー」ということがある。
これらDNAマーカーを使用すれば、接種試験による選抜を行わなくても、効率的にべと病抵抗性を有する新規キャベツ系統を育成することが可能となる。
(1) 具体的には、配列番号1~配列番号7で示したDNA配列をべと病抵抗性遺伝子座近傍に有する植物であり、そのアレルを有することによってべと病抵抗性を示す植物である。
(2) 上記配列を有する系統を交配材料に利用することで、べと病抵抗性を有した新規キャベツ親系統の育成が可能となる。べと病抵抗性の導入に際しては、接種試験による確認も可能であるが、配列番号1~配列番号7に基づいて作製されたDNAマーカーや、公的な情報から当該配列番号1~配列番号7の近傍に位置するDNA配列を選び出し、新たにマーカーを設計して抵抗性植物の選抜に用いてもよい。更に、べと病抵抗性遺伝子座近傍のマーカーを用いることによって、べと病抵抗性遺伝子座に連鎖する非目的形質を切り離した個体を選抜することも可能である。
(3) このようにして開発された本発明のキャベツは、べと病菌Hyaloperonospora brassicaeに対する抵抗性を有しているため、栽培期間中における病害防除のための殺菌剤散布の労力やコストを削減することができる。
1) べと病抵抗性遺伝子が、受託番号FERM BP-22343で特定されるブロッコリー品種に見出されるものである、べと病抵抗性キャベツ、またはその後代;
2) べと病抵抗性遺伝子が、受託番号FERM BP-22344で特定されるキャベツ品種に見出されるものである、べと病抵抗性キャベツ、またはその後代;および
3) 受託番号FERM BP-22344で特定される、べと病に対する抵抗性を有する雑種第一代キャベツ。
ここで、「植物体の一部」とは、花、葉、茎、根等の器官もしくはその部分または組織、或いは、これら器官または組織からの細胞、細胞の集合体等を包含する。
本発明によるべと病抵抗性キャベツの育成方法は、前記したように、べと病に対する抵抗性を有するブラシカ・オレラセア植物から、べと病抵抗性を、所望のキャベツに導入することを含む。
例えば、戻し交配第一世代(BC1F1)は分離世代であるために個々体が有するゲノム置換率は異なり、集団の規模を拡大すれば、個体によっては90%以上のゲノム領域が戻し親と同じ遺伝子型を示す個体を獲得することも可能である。このような個体を選抜することで、べと病抵抗性の遺伝子座以外の領域を早期に、少ない世代数で戻し親と同じ遺伝子型に揃えることが可能となる。
ゲノムワイドなDNAマーカーとして利用可能な具体的手段として、戻し親のゲノム配列情報を有している場合には、その情報に基づくDNAマーカーを作製して各遺伝子座のジェノタイピングを行ってもよい。
株式会社サカタのタネが保有するブロッコリーの遺伝資源を材料とし、2種類のべと病菌株(菌株Dm-A、及び菌株Dm-B(このうち、菌株Dm-Bはより多くの品種を侵す))の両方に対して抵抗性を示すブロッコリーを、2系統(「BR-23」、及び「BR-35」)見出した。
なお、世代表示として、F1は雑種第1代を意味し、BC1は、戻し交配を1回行った世代を意味する。すなわち、「BC1F1」とは、雑種第1代を経てさらに戻し交配を1回行った世代を意味する。
0: 無病徴、
1: 褐色病斑を形成、胞子形成はない、
2: 褐色病斑上に僅かな胞子形成、
3: 中程度の胞子形成、
4: 多量の胞子形成。
結果のとおり、F2集団は抵抗性:感受性が3:1に分離した一方、感受性系統を交配したBC1F1集団は1:1に分離した。これらのことから、本病害の抵抗性因子は単因子優性的に働くことが明らかになった。
表1において、抵抗性と感受性の分離が見られたF2集団(Mapping population-1,-2)やBC1F1集団(Mapping population-3,-4)を材料として、Bulked Segregant Analysis法(BSA法)によるRAPDマーカーの検索を行った。
バルクDNAには、Mapping population-4の集団より、抵抗性の個体を4個体、感受性の個体を4個体選び、それらのDNAを使用して、抵抗性個体のバルクDNAと、感受性個体のバルクDNAを作製した。
この段階で表現型とマーカーの分離パターンがほぼ一致したものについては、mapping population-1~mapping population-4の全個体に当てて、マーカーと表現型のスコアにどの程度矛盾が生じているのか確認し、表現型と強い相関を持つマーカーを選抜した。
またこれら各プライマー(マーカー)の電気泳動試験の結果(電気泳動図)を図2に示した。
なお、このようにして開発したマーカーを、本明細書では「DMTLRマーカー」と称する。
実施例2で使用したMapping population-2と同じF2集団を使用して、べと病菌株Dm-Aに対する抵抗性反応についても調査した。
F2集団の規模は240個体とし(mapping population-5とする)、Dm-Aに対する各個体の反応を調査した結果、表3のような分離を示した。なお、菌株Dm-Aによる接種試験については、実施例1の接種試験と同様に実施し評価した。
結果のように、配列番号1~7の近傍、特に配列番号4、配列番号5の極近傍に抵抗性因子が座乗すると推測された。
実施例2で解析した抵抗性系統「BR-23」とは異なる系統「BR-35」について、系統「BR-23」と同じ抵抗性因子を有しているか否かを確認するため、感受性系統の「BR-13」とのF2分離集団を作製し、菌株Dm-Aによる接種試験を実施した(表4)。なお、菌株Dm-Aによる接種試験については、実施例1の接種試験と同様に実施し評価した。
株式会社サカタのタネが保有するブロッコリーの系統である「BR-23」と「BR-35」を、べと病抵抗性の素材とし、当該抵抗性を導入するキャベツとして4つの品種群(葉深系、寒玉系、春系、ボール系)からそれぞれ各1系統「CB-20」、「CB-35」、「CB-23」、または「CB-97」を選定し、戻し交配親系統として交配試験を行った。
戻し交配を効率的に進めるため、20種類のRAPDプライマーによる選抜を行い、それぞれの戻し交配系統において、それぞれの戻し親系統である「CB-20」、「CB-35」、「CB-23」及び「CB-97」に近い遺伝子型を示す個体を選抜した。
その結果、「CB-20」においてはBC2F1世代で、その他の「CB-35」、「CB-23」及び「CB-97」においてはBC3F1世代で、これらのRAPDマーカーがそれぞれの戻し交配親系統と完全に一致する個体を選抜した。
発病程度
0:病斑なし、
1:病斑数少、
2:病斑数中程度、
3:病斑数多。
結果に示されるように、抵抗性の遺伝子座を導入した系統は、ヘテロであっても抵抗性が本葉及び玉においても発現し、且つ、寒玉系、春系、ボール系の親系統「CB-35」、「CB-23」及び「CB-97」と同等になったことを確認した。すなわち、図6から分かるように、元の親系統に対し、べと病抵抗性因子を導入したisogenic lineは、べと病の発病が抑えられた。
さらに、べと病抵抗性を付与した「DMR-CB-20」(前記で育成されたDMキャベツ系統)を花粉親に、他の有望なキャベツ系統である「CB-5」細胞質雄性不稔系統を種子親として、F1(品種試作名:SK3-005)を作出した。
このF1系統をサカタのタネ君津育種場で継続的に試作し、べと病抵抗性が、安定的に発現していることを確認した。
このようにしてべと病抵抗性F1キャベツ品種の初めての育成に至った。
図7に示されるとおり、べと病抵抗性を付与したF1品種(左写真)は、元のF1品種に比べて、べと病の発病が抑えられた。
Claims (21)
- べと病に対する抵抗性を有するキャベツ、またはその後代。
- 配列番号1~配列番号7のいずれか1以上で示される遺伝子座の近傍に座乗するべと病抵抗性遺伝子を有する、請求項1に記載のべと病抵抗性キャベツ、またはその後代。
- 配列番号8~配列番号21に示される塩基配列を有するプライマーのいずれか1以上で検出可能なべと病抵抗性遺伝子を有する、請求項1または2に記載のべと病抵抗性キャベツ、またはその後代。
- べと病が、Hyaloperonospora brassicaeにより引き起こされる病害である、請求項1~3のいずれか一項に記載のべと病抵抗性キャベツ、またはその後代。
- べと病抵抗性遺伝子が、受託番号FERM BP-22343で特定されるブロッコリー品種に見出されるものである、請求項1~4のいずれか一項に記載のべと病抵抗性キャベツ、またはその後代。
- べと病抵抗性遺伝子が、受託番号FERM BP-22344で特定されるキャベツ品種に見出されるものである、請求項1~4のいずれか一項に記載のべと病抵抗性キャベツ、またはその後代。
- 請求項1~6のいずれか一項に記載のキャベツまたはその後代の植物体の一部。
- 請求項1~6のいずれか一項に記載のキャベツまたはその後代の種子。
- 受託番号FERM BP-22344で特定される、べと病に対する抵抗性を有する雑種第一代キャベツもしくはその一部、またはそのキャベツの種子。
- べと病に対する抵抗性を有するブラシカ・オレラセア植物から、べと病抵抗性を、所望のキャベツに導入することを含む、べと病抵抗性キャベツの育成方法。
- べと病に対する抵抗性を有するブラシカ・オレラセア植物から、配列番号1~配列番号7のいずれか1以上で示される遺伝子座の近傍に座乗するべと病抵抗性遺伝子によるべと病抵抗性を、所望のキャベツに導入することを含む、べと病抵抗性キャベツの育成方法。
- べと病に対する抵抗性を有するブラシカ・オレラセア植物が、キャベツ以外のブラシカ・オレラセア植物である、請求項10または11に記載のべと病抵抗性キャベツの育成方法。
- べと病に対する抵抗性を有するブラシカ・オレラセア植物が、受託番号FERM BP-22343で特定されるブロッコリー品種である、請求項10~12のいずれか一項に記載の育成方法。
- べと病に対する抵抗性を有するブラシカ・オレラセア植物が受託番号FERM BP-22344で特定されるキャベツ品種である、請求項10または11に記載の育成方法。
- べと病抵抗性の所望のキャベツへの導入を、該キャベツを連続戻し交雑することにより行う、請求項10~14のいずれか一項に記載の育成方法。
- 配列番号1~配列番号7で示したDNA配列のいずれか1以上、または該DNA配列を増幅しうる1以上のプライマーもしくはプライマー対を用いて、べと病抵抗性遺伝子の存在を検定することを含む、請求項10~15のいずれか一項に記載の育成方法。
- 前記プライマーが、配列番号8~配列番号21のいずれか1以上で示されるものである、請求項16に記載の育成方法。
- 配列番号8~配列番号21に示される塩基配列を有するプライマーのいずれか1以上を用いて、べと病抵抗性遺伝子の存在を検定することを含む、請求項10~15のいずれか一項に記載の育成方法。
- 配列番号1~配列番号7に示される塩基配列のいずれか1つを有する、ブラシカ・オレラセア植物におけるべと病抵抗性遺伝子座を検出可能なマーカー。
- 配列番号8~配列番号21に示される塩基配列を有するプライマーをいずれか1以上含む、ブラシカ・オレラセア植物におけるべと病抵抗性遺伝子座を検出可能なプライマーセット。
- 配列番号1~配列番号7に示される塩基配列を有するマーカーのいずれか1以上、または、配列番号8~配列番号21に示される塩基配列を有するプライマーのいずれか1以上を用いることを含む、ブラシカ・オレラセア植物におけるべと病抵抗性の検出方法。
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CN201880072784.5A CN111417302A (zh) | 2017-09-11 | 2018-09-11 | 霜霉病抗性卷心菜及其培育方法 |
JP2019541052A JP7440265B2 (ja) | 2017-09-11 | 2018-09-11 | べと病抵抗性キャベツ及びその育成方法 |
RU2020113256A RU2805675C2 (ru) | 2017-09-11 | 2018-09-11 | Устойчивая к ложной мучнистой росе капуста и способ ее селекции |
US16/645,653 US11427832B2 (en) | 2017-09-11 | 2018-09-11 | Downy mildew resistant cabbage and breeding method therefor |
KR1020207010027A KR20200056398A (ko) | 2017-09-11 | 2018-09-11 | 노균병 저항성 양배추 및 그의 육성 방법 |
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RU2020113256A (ru) | 2021-10-13 |
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US11427832B2 (en) | 2022-08-30 |
EP3682732A1 (en) | 2020-07-22 |
EP3682732A4 (en) | 2021-07-14 |
US20200283791A1 (en) | 2020-09-10 |
CL2020000609A1 (es) | 2020-12-04 |
JP7440265B2 (ja) | 2024-02-28 |
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