CN106520723A - Protein VvMas and encoding gene, and application thereof in improvement of salt tolerance of plants - Google Patents

Protein VvMas and encoding gene, and application thereof in improvement of salt tolerance of plants Download PDF

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CN106520723A
CN106520723A CN201611045870.6A CN201611045870A CN106520723A CN 106520723 A CN106520723 A CN 106520723A CN 201611045870 A CN201611045870 A CN 201611045870A CN 106520723 A CN106520723 A CN 106520723A
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plant
vvmas
sequence
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gsp
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CN106520723B (en
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王飞兵
陈新红
周青
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Dongdai Jinan Intelligent Technology Co ltd
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Huaiyin Institute of Technology
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    • C12N15/8271Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance
    • C12N15/8273Phenotypically 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 drought, cold, salt resistance

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Abstract

The invention provides a protein VvMas, an encoding gene, a recombinant vector, expression box, transgenic cell line or recombinant bacterium containing the encoding gene, and a primer pair for amplifying the full length or any fragment of the encoding gene, and also provides an application of the protein VvMas, the encoding gene, and the recombinant vector, expression box, transgenic cell line or recombinant bacterium containing the encoding gene in improvement of the salt tolerance of plants. The protein and the encoding gene thereof have important application values in cultivation of salt-tolerance plant varieties in order to improve output of crops, and have wide application space and wide market prospect in the agriculture field.

Description

Albumen VvMas, encoding gene and its application in plant salt endurance is improved
Technical field
The present invention relates to a kind of plant salt endurance associated protein VvMas and its encoding gene and application, particularly derive from Salt tolerance associated protein VvMas of Fructus Vitis viniferae and its encoding gene and application.
Background technology
There is large-area saliferous soil in the world.According to statistics, the whole world has 800,000,000 hm2Salt-soda soil, in irrigated land There is the secondary salinization soil for accounting for cultivated area 33% in area, and the bursting of salt of soil has a strong impact on the development of modern agriculture.With regard to me For state, there is nearly 1/10th secondary salinization soil in the arable land of 1,800,000,000 mu of the whole nation, in addition also 20,000,000 hm2Salt alkaline wasteland Ground.In general, salinity can affect the growth of crop, but the salinity in salt-soda soil mostly in 0.6%- in 0.2%-0.5% 10%.The presence of large-area salinization land has had a strong impact on grain-production, becomes the principal element for limiting agricultural production.With The sharp increase of world population and the decline year by year of arable area, grain-production receives safely serious threat, for ploughing per capita The relatively small China of ground area is even more increasingly serious problem.By the further investigation to plant salt tolerance mechanism, salt tolerant is cultivated New Crop Varieties be using saline alkali land resource is most economical, one of effective measures.
The Mechanism of Salt-tolerant of plant is considerably complicated, and it is related to growth promoter, morphosiss, physiological feature and Metabolism regulation Etc. all many-sides.When plant is subject to salt stress, the aspect such as the form of plant, Physiology and biochemistry can all occur a series of change, Its existence could be maintained.Salt damage suppresses plant tissue, the growth of organ and differentiation, affects plant cell membrane structure, makes cell membrane Permeability increases, and reduces photosynthetic rate, causes a large amount of electrolyte and non-electrolyte extravasation, film fat component to change, memebrane protein Component and activity are affected, and then affect the physiological metabolism of plant.Therefore plant is in long-term evolution and adaptation process, by Step defines a series of mechanism for resisting extraneous poor environment change.
Plant under condition of salt stress can go to prevent or mitigate the harm of salt using certain strategy, in long-term evolution During, plant has developed a series of Mechanisms of Salt Resistance.With developing rapidly for molecular biology, plant salt tolerance Physiology and biochemistry Mechanism is increasingly clear and definite so that clone is possibly realized with plant salt tolerance related gene.Strengthen the physiological research of plant salt tolerance, verify plant Vital movement rule of the thing under adverse circumstance in addition artificial adjustment, cultivate the improved seeds with opposing poor environment character, with The yield and quality of crop is improved, agricultural year stable yields is significant for obtaining.
The content of the invention
Technical problem:In order to solve the defect of prior art, the invention provides a kind of plant salt endurance associated protein VvMas and its encoding gene, additionally provide the application of above-mentioned albumen.
Technical scheme:The present invention provide with plant salt endurance associated protein, its entitled VvMas (α/β hydrolytic enzyme), come It is following (a) or (b) to come from Fructus Vitis viniferae (Vitis vinifera):
A () is by sequence SEQ ID NO in sequence table:The protein of the aminoacid sequence composition shown in 2;
B () is by sequence SEQ ID NO in sequence table:2 amino acid residue sequence is through one or several amino acid residues Replacement and/or disappearance and/or addition and related to plant salt endurance by SEQ ID NO:Protein derived from 2.
Present invention also offers the gene of encoding proteins VvMas.
The gene, with C N metabolism associated protein, is arbitrary described gene in following (1)-(3):
(1) its nucleotides sequence is classified as SEQ ID NO:DNA molecular shown in 1;
(2) DNA sequence for being limited with (1) under strict conditions is hybridized and the DNA of coded plant salt tolerance associated protein divides Son;
(3) DNA sequence limited with (1) or (2) at least with 70%, at least with 75%, at least with 80%, at least With 85%, at least with 90%, at least with 95%, at least with 96%, at least with 97%, at least have 98% or At least there is the DNA molecular of 99% homology and coded plant salt tolerance associated protein.
Above-mentioned stringent condition can be, with 6 × SSC, the solution of 0.5%SDS, to hybridize at 65 DEG C, then with 2 × SSC, 0.1%SDS and 1 × SSC, 0.1%SDS respectively wash film once.
Sequence SEQ ID NO:1 by 1224 base compositions, sequence SEQ ID NO in polynucleotide:Egg shown in 2 In vain.
Present invention also offers containing it is described with the expression cassette of the encoding gene of plant salt endurance associated protein, it is recombinant expressed Carrier, transgenic cell line or recombinant bacterium.
The recombinant expression carrier is to insert to obtain final product said gene in expression vector.
Specifically, the recombinant vector is to insert the encoding gene to obtain between the multiple clone site of carrier pCBGUS 's.
Wherein, the carrier pCBGUS is that method by comprising the steps is obtained:
(1) by pCAMBIA1301 carriers through Hind III and EcoR I double digestions, reclaim carrier large fragment;
(2) 121 carriers of pBI are reclaimed into the fragment comprising gusA genes through Hind III and EcoR I double digestions;
(3) fragment comprising gusA genes by the carrier large fragment reclaimed in step (1) with recovery in step (2) connects Connect, obtain final product carrier pCBGUS.
The pCAMBIA1301 carriers are purchased from CAMBIA companies;121 carriers of the pBI are purchased from Clontech companies.
Present invention also offers the amplification encoding gene total length or its arbitrary fragment with plant salt endurance associated protein Primer pair.
Specifically, the primer pair sequence is as follows:
GSP-1:5’-CTGAGACGAGTTGGGGTGGAA-3’
GSP-2:5’-GTTTTCCCAGTCACGAC-3’
GSP-3:5’-GACTTGGCCTCCAGGTTGACCTTGA-3’
GSP-4:5’-GGCCACGCGTCGACTAGTACGGGGGGGGGG-3’
GSP-5:5’-ATGAAAGGCGTCTTTTCGGCGCCAG-3’
GSP-6:5’-TTACACAAGACATCTACTTTTCCAA-3’
Present invention also offers albumen VvMas, its encoding gene or its recombinant vector, expression cassette, transgenic cell line, weight Application of the group bacterium in plant salt endurance is improved;The plant is dicotyledon or monocotyledon.
Present invention also offers a kind of method for cultivating transgenic plant, comprises the following steps:By egg described in claim 1 White encoding gene imports purpose plant, obtains final product.
Specifically, the encoding gene of albumen described in claim 1 is led by the recombinant vector described in claim 4 or 5 Enter purpose plant;The plant is specially dicotyledon or monocotyledon.
The purpose plant is dicotyledon or monocotyledon;The preferred arabidopsiss of the dicotyledon or Oryza sativa L..
Beneficial effect:The albumen of the VvMas coded by said gene that the present invention is provided can improve the salt tolerance of plant, with weight The using value wanted, the research for improving Fructus Vitis viniferae salt tolerance provide important foundation.
The albumen and its encoding gene of the present invention has important using value to cultivating Salt tolerant plants kind, so as to carry High crop yield is significant, will have wide application space and market prospect in agriculture field.
Description of the drawings
Fig. 1 Fructus Vitis viniferae VvMas gene plants expression vector sketches of the present invention.
The PCR testing result figures of Fig. 2 VvMas transgenic Arabidopsis plants of the present invention.
The PCR testing result figures of Fig. 3 VvMas transgenic rice plants of the present invention.
The potted plant qualification figure of salt tolerance of Fig. 4 VvMas transgenic Arabidopsis plants of the present invention.
The salt tolerance Detached-leaf test figure of Fig. 5 VvMas transgenic rice plants of the present invention.
The salt tolerance water planting qualification figure of Fig. 6 VvMas transgenic rice plants of the present invention.
The potted plant qualification figure of salt tolerance of Fig. 7 VvMas transgenic rice plants of the present invention.
Specific embodiment
In following embodiments, test material used and its source include:
Fructus Vitis viniferae (Vitis vinifera) kind PN40024, by Huaiyingong College life sciences and food engineering institute river Su Sheng plant production and the laboratory preservation of machining Practice Education Center.
The seed of arabidopsiss (Arabidopsis thaliana) is through 2.5% (v/v) CaClO2It is planted in after sterilization black Soil:Vermiculitum:Perlite (1:1:1) in mixed-matrix, 22 DEG C, 16h illumination cultivation (16h illumination, 8h are dark, cold light source) growth 2 weeks.
No. 11 are spent in Oryza sativa L. (Oryza sativa) kind, by Huaiyingong College life sciences and food engineering institute Jiangsu Plant production is saved with the laboratory preservation of machining Practice Education Center.
Escherichia coli (Escherichia coli) DH5 α are by Huaiyingong College life sciences and food engineering institute Jiangsu Plant production is saved with the laboratory preservation of machining Practice Education Center.Cloning vehicle PMD-18-Simple T, all kinds of restriction enzymes Enzyme, Taq polymerase, ligase, dNTP, 10 × PCR buffer and DNA marker are purchased from the limited public affairs in precious biological engineering Dalian Department.All of chemical reagent is all bought from sigma chemical company of the U.S. and Shanghai traditional Chinese medicines chemical reagents corporation.
In the present invention conventional molecular biology manipulations referring specifically to《Molecular cloning》【Molecular Cloning.2nd ed.Cold Spring Harbor Laboratory Press,1989】。
In following embodiments, conventional genetic manipulation is carried out with reference to molecular cloning document【Sambook J,Frets EF, Mannsdes T et al.In:Molecular Cloning.2nd ed.Cold Spring Harbor Laboratory Press,1989】。
The acquisition of the related albumen of 1 Fructus Vitis viniferae salt tolerance of embodiment and its encoding gene
1. experiment material
Grape variety PN40024 aseptic seedling expansion leaf blade is removed, liquid nitrogen flash freezer, -80 DEG C of preservations.
2. blade Total RNAs extraction and purification
Take PN40024 aseptic seedling and launch leaf blade about 2.0g, grind to form powdery in liquid nitrogen, add 10mL centrifuge tubes, use It is total that Applygen plant RNA extraction test kits (Applygen Technologies Inc, Beijing) extract sweet potato root tuber RNA, test kit include:Plant RNA Reagent, plant tissue cracking, separation RNA, removal vegetable polysaccharidess and polyphenol; Extraction Reagent, Organic extraction remove isolating protein, DNA, polysaccharide and polyphenol;Plant RNA Aid, remove plant many Sugared polyphenol and secondary metabolite.Using QIAGEN Oligotex Mini mRNA Kit (QIAGEN, GmbH, Germany) from Purified mRNA in total serum IgE.Finally, 1 μ L are taken and its integrity is detected in 1.2% agarose gel electrophoresiies, separately take 2 μ L and be diluted to 500 μ L, with its quality of UV spectrophotometer measuring (OD260) and purity (OD260/OD280), the PN40024 aseptic seedling leaves of extraction Piece total serum IgE, the detection of Jing non denatured glue agarose gel electrophoresiies, 28S and 18S bands are clear, and the two brightness ratio is 1.5~2 1, show that total serum IgE is not degraded, obtained by purification, mRNA meets requirement of experiment, can be used for Fructus Vitis viniferae VvMas albumen cDNA total lengths gram It is grand.
The full-length clone of 3.VvMas albumen cDNA
The full-length clone of VvMas albumen cDNA is carried out with the VvMas EST fragments design primer that this laboratory is obtained.
(1)3’-RACE
With PN40024cDNA as template, enter performing PCR with VvMas EST forward primers GSP-1 and reverse primer GSP-2 anti- Should.Primer sequence is as follows:
GSP-1:5’-CTGAGACGAGTTGGGGTGGAA-3’
GSP-2:5’-GTTTTCCCAGTCACGAC-3’
3 ' the RACE fragments that PCR is obtained, connect after recovery pMD19-T carriers (purchased from the logical Trade Co., Ltd. of Beijing six directions, Catalog number is D102A) TA clones are carried out, draw so that BcaBESTTM Sequencing Primers/M13Primers are general Thing is sequenced.
(2)5’-RACE
With PN40024cDNA as template, enter performing PCR with VvMas EST forward primers GSP-3 and reverse primer GSP-4 anti- Should.Primer sequence is as follows:
GSP-3:5’-GACTTGGCCTCCAGGTTGACCTTGA-3’
GSP-4:5’-GGCCACGCGTCGACTAGTACGGGGGGGGGG-3’
5 ' the RACE fragments that PCR is obtained, connect after recovery pMD19-T carriers (purchased from the logical Trade Co., Ltd. of Beijing six directions, Catalog number is D102A) TA clones are carried out, draw so that BcaBESTTM Sequencing Primers/M13Primers are general Thing is sequenced.
(3) PCR expands the coding region of VvMas albumen cDNA
Splice the Fructus Vitis viniferae VvMas Protein cDNA Sequences of candidate using 7.0 softwares of DNAMAN.Forward primer is designed further GSP-5 and reverse primer GSP-6 enter the coding region that performing PCR expands VvMas albumen cDNA.Primer sequence is as follows:
GSP-5:5’-ATGAAAGGCGTCTTTTCGGCGCCAG-3’
GSP-6:5’-TTACACAAGACATCTACTTTTCCAA-3’
With PN40024 blade total serum IgE Jing Oligo (dT) reverse transcriptions as template, with the FastPfu enzymes of high-fidelity, enter performing PCR Amplification, PCR conditions are 95 DEG C of 1min, subsequent 95 DEG C of 20s, 53 DEG C of 20s and 72 DEG C of 1min, carry out 40 circulations, and last 72 DEG C are prolonged Stretch 10min.Agarose gel electrophoresiies detect pcr amplification product, obtain the amplified fragments of 1224bp length.
The result of summary step, obtains purpose cDNA sequence, sequence SEQ in its nucleotide sequence such as sequence table ID NO:Shown in 1.Sequence SEQ ID NO in sequence table:1 by 1224 base compositions, from 5 ' the 1st the-the 1224 bit bases in end For its open reading frame, coding is with sequence SEQ ID NO in sequence table:The protein of the amino acid residue sequence shown in 2.Sequence Sequence SEQ ID NO in list:2 are made up of 407 amino acid residues.By the unnamed gene be VvMas, the albumen for being encoded It is named as VvMas.
The structure of 2 VvMas gene overexpression carriers of embodiment
Sequencing identification in embodiment 1 is correctly contained sequence table SEQ ID NO:The DNA fragmentation of nucleotide shown in 1 is used BamH I and Sac I carries out double digestion, reclaims DNA fragmentation with 1% agarose gel, by T4DNA ligase by reclaim VvMas genetic fragments are connected with double 35S promoter pYPx245 plasmids are contained, and enzyme action identification and sequence analysis are determined and contained There is the recombiant plasmid AH128 of Fructus Vitis viniferae VvMas genes.The expression vector also includes gusA reporter genes and band intron kanamycin Resistant maker gene, carrier are as shown in Figure 1.
Embodiment 3VvMas gene transformation arabidopsiss
The plant expression vector pCAMBIA1301-VvMas of the Fructus Vitis viniferae VvMas genes that embodiment 2 is built is with dipping in Hua Fazhuan Change arabidopsiss, concrete grammar is as follows:
1. the preparation of Agrobacterium
(1) pCAMBIA1301-VvMas is converted into agrobacterium tumefaciens lba4404 bacterial strain (Biovector with electric shocking method Co., LTD), the recombinational agrobacterium containing pCAMBIA1301-VvMas is obtained, and coats the flat board containing kalamycin resistance Screening transformant.
(2) picking Agrobacterium list bacterium is inoculated in 5mL LB fluid mediums (50 μ g/mL of rifampicin, 100 μ g/mL of chloromycetin) In, 28 DEG C, 250rpm culture 20h.
(3) take 1mL bacterium solutions to transfer into 20-30mL LB fluid mediums (50 μ g/mL of rifampicin, 100 μ g/mL of chloromycetin) In, 28 DEG C, 250rpm culture about 12h survey 600 ≈ 1.5 of OD.
(4) 8000rpm, 4 DEG C, 10min is collected by centrifugation thalline, be resuspended in Agrobacterium-mediated Transformation penetrating fluid (5% sucrose, 0.05%Silwet L-77) and it is diluted to 600 ≈ 0.8 of OD.
2. arabidopsiss dip in colored method conversion
(1) infect colored a kind of sedge immersion of arabidopsiss above-mentioned in liquid, take out after being gently agitated for about 10s, be totally converted after finishing, Arabidopsiss are covered with freshness protection package, to keep moist environment, horizontal positioned, 22 DEG C of lucifuge cultures to remove freshness protection package after 24h and uprightly train Support.
(2) after first transfonning four days, can once be converted again, be repeated twice, total cotransformation three times so can be to flower The alabastrum of the different times developed in sequence is converted, and improves transformation efficiency.
(3) growth about after two months, collects seed, and 4 DEG C of refrigerator storages are stand-by.
Arabidopsiss through dipping in colored method conversion grow about after two months, knot of normally blooming.
3 VvMas genes of embodiment turn Oryza sativa L.
The plant expression vector pCAMBIA1301-VvMas rice transformations of the Fructus Vitis viniferae VvMas genes that embodiment 2 is built, Concrete grammar is as follows:
1. the preparation of Agrobacterium
(1) by pCAMBIA1301-VvMas with electric shocking method conversion Agrobacterium tumefaciems EHA105 bacterial strains (Biovector Co., LTD), the recombinational agrobacterium containing pCAMBIA1301-VvMas is obtained, and coats the plate screening containing kalamycin resistance Transformant.
(2) picking Agrobacterium list bacterium is inoculated in 5mL LB fluid mediums (50 μ g/mL of rifampicin, 100 μ g/mL of chloromycetin) In, 28 DEG C, 250rpm culture 20h.
(3) take 1mL bacterium solutions to transfer into 20-30mL LB fluid mediums (50 μ g/mL of rifampicin, 100 μ g/mL of chloromycetin) In, 28 DEG C, 250rpm culture about 12h survey 600 ≈ 1.5 of OD.
(4) 8000rpm, 4 DEG C, 10min is collected by centrifugation thalline, be resuspended in Agrobacterium-mediated Transformation penetrating fluid (5% sucrose, 0.05%Silwet L-77) and it is diluted to 600 ≈ 0.8 of OD.
2. the acquisition of Mature Embryos of Rice wound healing
(1) No. 11 seeds will be spent to remove clever shell in ripe rice varieties, with 70% alcohol disinfecting 1-2min;
(2) then with 20% sodium hypochlorite immersion 30-40min, with sterile distilled water rinse 4 times, seed is transferred to Surface moisture is blotted on sterilized filter paper, is then seeded on NB inducing cultures;
(3) after light culture 7-10d, when scultellum expands, when endosperm softens, remove embryo and bud, the embryo callus subculture for peeling is turned Move on on NB subculture mediums, about 3w subcultures once, can serve as receptor after subculture 2-3 time and be converted.
3. agriculture stalk bacterium mediated transformation Rice Callus
(1) choose good embryo callus be put in it is above-mentioned infect in liquid, soak 30min;
(2) calluss are taken out, unnecessary bacterium solution is sucked with aseptic filter paper, be subsequently placed in NB and co-culture culture in culture medium There is (about 2-3d) to just there is bacterium colony;
(3) with sterilized water oscillation cleaning 3-4 time, till supernatant is cleaned completely, with 500mg/L cephamycin solution Oscillation cleaning 40min;
(4) calluss are taken out, 0.4m/s air-dries 4h in being put into the only sterile petri dish with filter paper, proceeds to NB screening and culturing Base screening two-wheeled (often taking turns 3-4w);
(5) kanamycin-resistant callus tissue is carried out into pre- differentiation 2-3w, is then transferred into illumination cultivation 2-3w in division culture medium;
(6) strong seedling culture base culture 30d or so is proceeded to when plumelet length is to about 1cm;
(7) throw off the culture of sealed membrane seedling exercising one week or so, be then transplanted in soil.
4 VvMas gene transgenic Arabidopsis plants PCR of embodiment is detected
1. the screening of transgenic arabidopsis seed
(1) 25-30mg seeds are claimed to be put into 1.5mL centrifuge tubes;
(2) 75% ethanol disinfection 1min of 1mL (not stopping to rock vibration), 8000rpm centrifugation 5s, removes supernatant;
(3) bleaching powder (2.5%) sterilization 15min (not stopping to rock vibration, sufficiently sterilised) after adding 1mL to filter, 8000rpm is centrifuged 5s, removes supernatant;
(4) aseptic water washing 3-4 time;
(5) seed is uniformly sowed on 1/2MS flat boards (50 μ g/mL of hygromycin), the sealing of Parafilm films, 4 DEG C of ice Case placement two days, 22 DEG C, 16h illumination cultivation 10 days.
(6) resistant plant is transplanted in basin and is cultivated, after Seedling is slightly larger, carried out GUS Activity determinations, select positive plant (T1) Cultivate to blossoming and bearing fruit, collect T1Tied T on plant2Seed, further screening obtain T3Seed.
2. transgenic Arabidopsis plants PCR detections
(1) test method
T is extracted with CTAB methods3The genomic DNA of arabidopsiss transfer-gen plant and WT lines.Carried out with conventional method PCR detects that the VvMas gene primers for being used are:primer 1:5 '-ACAGCGTCTCCGACCTGATGCA-3 ' and primer2:5’-AGTCAATGACCGCTGTTATGCG-3’.10 × PCR is added in 0.2mL Eppendorf centrifuge tubes 21 μ L of μ L, 4dNTP (10mol/L) of buffer, primer (10 μm of ol/L) are 1 μ L, template DNA (50ng/uL) 2 μ L, Taq 0.25 μ L of archaeal dna polymerase, plus ddH2O to 20 μ L of cumulative volume.Response procedures be 94 DEG C of denaturations 5min, 94 DEG C of degeneration 30s, 55 DEG C Renaturation 30s, 72 DEG C of extension 2min, totally 35 circulations.
(2) result of the test
Electrophoresis detection amplification is shown in that (in Fig. 2, swimming lane M is Maker to Fig. 2;Swimming lane W:Water;Swimming lane P:Positive control (restructuring Plasmid pCAMBIA1301-VvMas);Swimming lane Col-0:Wild-type Arabidopsis plants;Swimming lane #1-#5:For conversion The arabidopsiss transfer-gen plant of pCAMBIA1301-VvMas).It can be seen that the arabidopsiss of conversion pCAMBIA1301-VvMas Intend the target stripe that transfer-gen plant and positive control amplify 591bp, show that VvMas genes have been incorporated into the base of arabidopsiss In because of group, and prove that these regeneration plants are transfer-gen plant;Wild-type Arabidopsis plants do not amplify the target bar of 591bp Band.Transfer-gen plant is analyzed for follow-up function.
5 VvMas gene transgenic rice plants PCR of embodiment is detected
(1) test method
T is extracted with CTAB methods2The genomic DNA of Transgenic Rice Plants and WT lines.Enter performing PCR with conventional method Detect, the VvMas gene primers for being used are:primer 1:5 '-ACAGCGTCTCCGACCTGATGCA-3 ' and primer2: 5’-AGTCAATGACCGCTGTTATGCG-3’.Add in 0.2mL Eppendorf centrifuge tubes 10 × PCR buffer, 2 μ L, 1 μ L of 4dNTP (10mol/L), primer (10 μm of ol/L) are 1 μ L, 2 μ L, Taq archaeal dna polymerase 0.25 of template DNA (50ng/uL) μ L, plus ddH2O to 20 μ L of cumulative volume.Response procedures be 94 DEG C of denaturations 5min, 94 DEG C of degeneration 30s, 55 DEG C of renaturation 30s, 72 DEG C Extend 2min, totally 35 circulations.
(2) result of the test
Electrophoresis detection amplification is shown in that (in Fig. 3, swimming lane M is Maker to Fig. 3;Swimming lane W:Water;Swimming lane P:Positive control (restructuring Plasmid pCAMBIA1301-VvMas);Swimming lane WT:Wild rice plant;Swimming lane OE1-OE11:For converting pCAMBIA1301- The Transgenic Rice Plants of VvMas).It can be seen that the Oryza sativa L. of conversion pCAMBIA1301-VvMas intends transfer-gen plant and sun Property control amplify the target stripe of 591bp, show that VvMas genes have been incorporated in the genome of Oryza sativa L., and prove these Regeneration plant is transfer-gen plant;Wild rice plant does not amplify the target stripe of 591bp.Transfer-gen plant is follow-up Functional analyses.
6 VvMas gene transgenic Arabidopsis plant Salt-Tolerance Identifications of embodiment
(1) test method
After transgenic arabidopsis and wild type seeds are cultivated 2w in 1/2MS culture medium, plantlet of transplant is trained in basin After foster 2w, salt stress process is carried out.With containing 300mM NaCl 1/2 suddenly each 2d of Glan nutritional solution irrigate 1 time, every time 200mL, processes 4w, observes plant strain growth situation and takes a picture, counts survival rate.
(2) result of the test
As a result show, by the potted plant identification of salt tolerance, as a result see Fig. 4, after salt treatment 4w, the growth conditions of transfer-gen plant WT lines are significantly better than, the survival rate of transfer-gen plant is significantly higher than wildness plant.Show that overexpression VvMas genes show Write the salt tolerance for improving transgenic Arabidopsis plants.
7 VvMas gene transgenic rice plant Salt-Tolerance Identifications of embodiment
1. transgenic rice plant growth potential is compared
(1) test method
The seed disinfection of transgenic paddy rice material and wild type material, seed are sowed on MS solid plates, seed is sent out The seed of germination state consistency after bud 2-3d, is chosen, the different middle finger pipe cultures in MS and MS+NaCl (200mM) are sowed respectively On base, after Seedling growth 7-10d, the Seedling growing way of different disposal starts difference occur, carries out photograph and growth potential statistics, including Seedling Long and fresh weight data.
(2) result of the test
As a result show, under salt stress treatment conditions, as a result see Fig. 5, transgenic line and wild type WT materials because The presence of condition of salt stress, plant diminish;But transgenic line is compared with wild type WT, and growth conditions are relatively preferable, growth Gesture data statisticss show that the Seedling length of transgenic line and fresh weight are superior to wild type WT materials.
2. transgenic rice plant salt tolerance water planting identification
(1) test method
By the T of homozygosis2Transgenic paddy rice and wild rice seed are seeded in MS culture medium, grow about 3-4d.Choose The seedling that growing way is consistent is selected, is transplanted in 96 hole PCR plates (its bottom has been cut up), one time of nutrition liquid is changed every 1d, kept away Exempt from the long bacterium of Seedling root, after normal growth 4w;Stress treatment 2w is carried out in being transferred into 200mM NaCl Hoagland solutions, is observed Its phenotype, is taken a picture and is investigated its survival rate.
(2) result of the test
As a result show, after salt stress treatment conditions 2w, as a result see Fig. 6, transgenic line is compared with wild type material, poor It is different it is obvious that the growth conditions of transgenic line are significantly better than wild type material, the survival rate of transfer-gen plant is significantly higher than open country Natural disposition plant.Show that overexpression VvMas genes significantly improve the salt tolerance of transgenic rice plant.
3. the potted plant identification of transgenic rice plant salt tolerance
(1) test method
In order to further verify the salt tolerance of transgenic paddy rice material, by the T of homozygosis2Transgenic paddy rice and wild rice The surface of the seed is sterilized, and uses pure water accelerating germination, is seeded in MS culture medium, grows about 3-4d.The consistent seedling of growing way is selected, is planted It is implanted in Nutrition Soil:Vermiculitum=1:In 2 Nutrition Soil, note watering daily, salt is proceeded by until plant grows to 4 true leaves Stress treatment.With containing 200mM NaCl 1/2 each 2d irrigation of Glan nutritional solution 1 time suddenly, each 200mL processes 2w, observation Its phenotype, is taken a picture and is investigated its survival rate.
(2) result of the test
After Fig. 7 results are displayed in salt stress treatment conditions 2w, salt tolerant potted plant experiment shows transgenic line with wild section bar Material is compared, it is obvious that the growth conditions of transgenic line are significantly better than wild type material, the survival rate of transfer-gen plant shows difference Write higher than wildness plant.Show that overexpression VvMas genes significantly improve the salt tolerance of transgenic rice plant.
<110>Huaiyingong College
<120>Albumen VvMas, encoding gene and its application in plant salt endurance is improved
<130> 20161118002
<160> 8
<170> PatentIn version 3.3
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atgaaaggcg tcttttcggc gccaggagat tacatccact tcaagtctca ggtccctctt 60
cacaagatcc ccattggcac aaagcagtgg cggtattatg attttggtcc aaaagtggtc 120
cctccactta tttgtcttcc tgggacagca ggaactgcag atgtctatta caaacagata 180
atgtcattgt ccataaaggg ttaccgggtg atctctgttg atattcctcg cgtatggaac 240
catcatgagt ggattcaagc atttgaaaag tttttggatg ctattgatgt gcaccatata 300
catctttatg gcacatccct tggaggcttc ctggcacaac tttttgctca gcatcgtcca 360
agacgggtta ggtcgttgat tctctcaaat tcatttttgg agacacgcag tttctcatct 420
gcaatgccat gggcccctat tgtcagttgg accccttctt ttttgctgaa gagatatgtc 480
ttaacgggaa ttccagatgg cccccatgaa ccatttattg cagattcagt agactttgtt 540
gtttcccagg ttgaaacact ctcaagagag gacttggcct ccaggttgac cttgactgtt 600
gatgctgctt ccattggacc tcttcttctc tcagattcat tcatcactct aatggataca 660
aatgactact gttcaattcc tcaacaactc aaagatcagc tgagtgaaag gtaccctgga 720
gcaaggcgag catacttaaa aactggaggt gatttcccat ttctttcacg ttcagatgaa 780
gtaaacctac atcttcagtt acacctgaga cgagttgggg tggaagcccg tccagatttg 840
gtcaagggta tctcaaagga tggtagtggt gggagttcta gtgaaaagaa tgatgaaaga 900
gaagattcag atgttcctcc taaggacaat gggggaagtc ctgaaagccc ttccactgaa 960
acccaattgc cagaggctcc agaaagttcg ggttctcata gcttagatga ccagctcctc 1020
agcaatgcaa aggtttgctt caccagtcct gaacatgtga ggcttcccat atctcatgca 1080
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tttattcttt gtctgcttcc tctctatgtg gaaacaatgt acattacttg gattttttgt 1200
tggaaaagta gatgtcttgt gtaa 1224
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Thr Ala Gly Thr Ala Asp Val Tyr Tyr Lys Gln Ile Met Ser Leu Ser
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Ile Lys Gly Tyr Arg Val Ile Ser Val Asp Ile Pro Arg Val Trp Asn
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His His Glu Trp Ile Gln Ala Phe Glu Lys Phe Leu Asp Ala Ile Asp
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Val His His Ile His Leu Tyr Gly Thr Ser Leu Gly Gly Phe Leu Ala
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Gln Leu Phe Ala Gln His Arg Pro Arg Arg Val Arg Ser Leu Ile Leu
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Ala Pro Ile Val Ser Trp Thr Pro Ser Phe Leu Leu Lys Arg Tyr Val
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Val Asp Phe Val Val Ser Gln Val Glu Thr Leu Ser Arg Glu Asp Leu
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Ala Ser Arg Leu Thr Leu Thr Val Asp Ala Ala Ser Ile Gly Pro Leu
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Ser Ile Pro Gln Gln Leu Lys Asp Gln Leu Ser Glu Arg Tyr Pro Gly
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Ala Arg Arg Ala Tyr Leu Lys Thr Gly Gly Asp Phe Pro Phe Leu Ser
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Arg Ser Asp Glu Val Asn Leu His Leu Gln Leu His Leu Arg Arg Val
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Ser Gly Gly Ser Ser Ser Glu Lys Asn Asp Glu Arg Glu Asp Ser Asp
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Claims (10)

1. a kind of albumen, is following (a) or (b):
A () is by sequence SEQ ID NO in sequence table:The protein of the aminoacid sequence composition shown in 2;
B () is by sequence SEQ ID NO in sequence table:2 amino acid residue sequence is taken through one or several amino acid residues Generation and/or disappearance and/or add and related to plant salt endurance by SEQ ID NO:Protein derived from 2.
2. the gene of albumen described in claim 1 is encoded.
3. gene as claimed in claim 2, it is characterised in that:The gene is DNA point of any one in following (1)-(3) Son;
(1) its nucleotides sequence is classified as SEQ ID NO:DNA molecular shown in 1;
(2) the DNA sequence hybridization for limiting with (1) under strict conditions and the DNA molecular of coded plant salt tolerance associated protein;
(3) DNA sequence limited with (1) or (2) is at least had 70%, at least has 75%, at least have 80%, at least have 85%th, at least with 90%, at least with 95%, at least with 96%, at least with 97%, at least have 98% or at least With 99% homology and coded plant salt tolerance associated protein DNA molecular.
4. the recombinant vector, expression cassette, transgenic cell line or recombinant bacterium containing gene described in Claims 2 or 3.
5. recombinant vector as claimed in claim 4, it is characterised in that:The recombinant vector is by base described in Claims 2 or 3 Obtain final product in expression vector because inserting.
6. the primer pair of full length gene or its any fragment described in Claims 2 or 3 is expanded.
7. primer pair as claimed in claim 6, its sequence are as follows:
GSP-1:5’-CTGAGACGAGTTGGGGTGGAA-3’;
GSP-2:5’-GTTTTCCCAGTCACGAC-3’;
GSP-3:5’-GACTTGGCCTCCAGGTTGACCTTGA-3’;
GSP-4:5’-GGCCACGCGTCGACTAGTACGGGGGGGGGG-3’;
GSP-5:5’-ATGAAAGGCGTCTTTTCGGCGCCAG-3’;
GSP-6:5’-TTACACAAGACATCTACTTTTCCAA-3’.
8. encoding gene described in albumen, Claims 2 or 3 described in claim 1 or recombinant vector, expression described in claim 4 The application of box, transgenic cell line or recombinant bacterium in plant salt endurance is improved;The plant is dicotyledon or unifacial leaf Plant.
9. it is a kind of cultivate transgenic plant method, it is characterised in that:Comprise the following steps:By albumen described in claim 1 Encoding gene imports purpose plant, obtains final product.
10. method according to claim 9, it is characterised in that:The encoding gene of albumen described in claim 1 is by power Profit requires that the recombinant vector described in 4 or 5 imports purpose plant;The plant is specially dicotyledon or monocotyledon.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107663232A (en) * 2017-10-27 2018-02-06 淮阴工学院 Plant anti-adversity associated protein OsIAA18 and its encoding gene and application
CN108047320A (en) * 2018-02-13 2018-05-18 淮阴工学院 The application of Protein G mMYB12 and encoding gene in isoflavones accumulation and salt tolerance is improved

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CN103204915A (en) * 2013-04-11 2013-07-17 中国农业大学 Salt resistance related protein IbEST of sweet potato and coding gene and application thereof

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CN103204915A (en) * 2013-04-11 2013-07-17 中国农业大学 Salt resistance related protein IbEST of sweet potato and coding gene and application thereof

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Publication number Priority date Publication date Assignee Title
CN107663232A (en) * 2017-10-27 2018-02-06 淮阴工学院 Plant anti-adversity associated protein OsIAA18 and its encoding gene and application
CN107663232B (en) * 2017-10-27 2019-09-24 淮阴工学院 Plant anti-adversity associated protein OsIAA18 and its encoding gene and application
CN108047320A (en) * 2018-02-13 2018-05-18 淮阴工学院 The application of Protein G mMYB12 and encoding gene in isoflavones accumulation and salt tolerance is improved

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