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CN1687124A - Drought resistant correlative protein and coded gene of plant and application - Google Patents

Drought resistant correlative protein and coded gene of plant and application Download PDF

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Publication number
CN1687124A
CN1687124A CN 200510066436 CN200510066436A CN1687124A CN 1687124 A CN1687124 A CN 1687124A CN 200510066436 CN200510066436 CN 200510066436 CN 200510066436 A CN200510066436 A CN 200510066436A CN 1687124 A CN1687124 A CN 1687124A
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Prior art keywords
plant
drought resistance
leu
related protein
plant drought
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CN 200510066436
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CN1293095C (en
Inventor
巩志忠
洪旭晖
陈智忠
张海荣
王幼群
李霞
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China Agricultural University
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China Agricultural University
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Abstract

本发明公开了一种植物抗旱性相关蛋白及其编码基因与应用。本发明所提供的植物抗旱性相关蛋白,是具有下述氨基酸残基序列之一的蛋白质:1)序列表中的SEQ ID №:2;2)将序列表中SEQ ID №:2的氨基酸残基序列经过一个或几个氨基酸残基的取代、缺失或添加且与植物抗旱相关的蛋白质。可利用该植物抗旱性相关蛋白的编码基因增强植物抗旱性,如抑制植物中的上述植物抗旱性相关蛋白编码基因的表达。本发明的植物抗旱性相关蛋白及其编码基因可用于培育抗旱植物新品种,具有重要意义。The invention discloses a plant drought resistance-related protein, its coding gene and application. The plant drought resistance-related protein provided by the present invention is a protein having one of the following amino acid residue sequences: 1) SEQ ID No.: 2 in the sequence listing; 2) the amino acid residue of SEQ ID No.: 2 in the sequence listing A protein whose base sequence has undergone substitution, deletion or addition of one or several amino acid residues and is related to plant drought resistance. The gene encoding the plant drought resistance-related protein can be used to enhance the drought resistance of the plant, such as inhibiting the expression of the above-mentioned gene encoding the plant drought resistance-related protein in the plant. The plant drought resistance-related protein and its coding gene of the invention can be used to breed new varieties of drought-resistant plants, which is of great significance.

Description

A kind of plant drought associated protein and encoding gene and application
Technical field
The present invention relates to a kind of plant drought associated protein and encoding gene and application in the bioengineering field, particularly utilize this gene to strengthen the method for plant drought resistance.
Background technology
Food problem is one of several hang-ups of facing of the world today.By improve per unit area yield or enlarge cultivated area, the approach such as improve the low and medium-yield farmland of increasing investment in agriculture increases grain yield and all can run into and need overcome the adverse circumstance restriction or alleviate the problem of adverse circumstance harm.Therefore, the understanding plant is improved the resistance of plant to the reaction mechanism of adverse circumstance, has become the further important foundation research of volume increase of agricultural, and extremely countries in the world government and scientist's concern also is the focus of current life science.
Arid is the main adverse circumstance that limiting plant growth is grown, destruction along with the mankind's Economic development, population expansion and biotic population, the shortage of water resources phenomenon is on the rise, it has seriously influenced agriculture production and ecotope, become the problem that the whole world is paid close attention to, therefore seek plant particularly farm crop drought resisting approach be very necessary.Improve the drought resistance of crop, except utilizing traditional breeding method, at present, one of field that the using gene engineering breeding has become the scientific worker to be paid close attention to.
Arabidopis thaliana is a kind of typical model plant, is widely used in plant genetics, developmental biology and molecular biological research.Most of genes of Arabidopis thaliana can both find in other plant, and any discovery of relevant Arabidopis thaliana can both be applied to other plant research.Therefore, the research to Arabidopis thaliana drought resistance The Molecular Biology Mechanism will greatly help to find raising farm crop drought resistance, the method for increase output.
Arabidopis thaliana has about 1.3 hundred million base pairs, 2.9 ten thousand genes.The function of most gene is not clear at present, utilizes mutating technology research gene function to become a kind of effective means.By research, known the function of some anti-drought genes, as DREB, CBF, ABRE etc. to mutant.
At present, also do not find effective drought resisting functional gene,, seek new drought resisting functional gene and illustrate its function and have important theory and practice significance in the face of serious day by day crop arid problem.
Summary of the invention
The purpose of this invention is to provide a kind of new plant drought associated protein and encoding gene thereof.
Plant drought associated protein provided by the present invention, name is called LEW2-1 (LEaf Wilt 2-1), and it derives from the ecotypic Arabidopis thaliana of Colombia, is the protein with one of following amino acid residue sequences:
1) the SEQ ID № in the sequence table: 2;
2) with SEQ ID № in the sequence table: 2 amino acid residue sequence is through replacement and/or disappearance and/or the interpolation and the protein relevant with plant drought of one or several amino-acid residue.
Sequence 2 in the sequence table is made up of 985 amino-acid residues.
The replacement of described one or several amino-acid residue and/or disappearance and/or interpolation are meant replacement and/or disappearance and/or the interpolation that is no more than 10 amino-acid residues.
The encoding gene of LEW2-1 (LEW2-1) also belongs to protection scope of the present invention.
The cDNA gene of LEW2-1 can have one of following nucleotide sequence:
1) SEQ ID № in the sequence table: 1 dna sequence dna;
2) SEQ ID № in the code sequence tabulation: the polynucleotide of 2 protein sequences;
3) under the rigorous condition of height can with SEQ ID № in the sequence table: the nucleotide sequence of the 1 dna sequence dna hybridization that limits;
4) with sequence table in SEQ ID №: 1 dna sequence dna that limits has 90% above homology, and the identical function protein DNA sequence of encoding.
The rigorous condition of described height can be 0.1 * SSPE (or 0.1 * SSC), in the solution of 0.1%SDS, under 65 ℃, hybridize and wash film.
Sequence 1 in the sequence table is by 3217 based compositions, its open reading frame (ORF) be from the 68th at 5 ' end to 3025 bit bases, the protein of encoding sequence 2.
The expression vector that contains LEW2-1 of the present invention, clone and host bacterium all belong to protection scope of the present invention.Arbitrary segmental primer is to also belonging to protection scope of the present invention among the amplification LEW2-1.
Second purpose of the present invention provides a kind of method of utilizing this gene to strengthen plant drought resistance.
The method of enhancing plant drought resistance provided by the present invention is the expression that suppresses the above-mentioned plant drought resistance associated protein encoding gene in the plant.
Suppress the expression of the above-mentioned plant drought resistance associated protein encoding gene LEW2-1 in the plant and can pass through accomplished in many ways, method as the plant viral vector mediated gene silencing, the method of antisense technology silencer, the gene silencing methods of siRNA mediation etc.The method of inhibition of gene expression of the present invention is not limited to above-mentioned several method, all can as long as can suppress the LEW2-1 expression.
Utilize any plant gene to knock out technology, behind this gene knockout (or reticent), plant shows as drought resisting; Utilize any carrier that can guide foreign gene to express in plant, LEW2-1 provided by the present invention is changed in the plant, it is responsive that plant just shows drought.
LEW2-1 gene of the present invention or its antisense nucleic acid can add any enhancing promotor or inducible promoter in being building up to plant expression vector the time before its transcription initiation Nucleotide.For the ease of transgenic plant cells or plant being identified and screening, can process employed carrier, as the antibiotic marker thing (gentamicin, kantlex etc.) that adds the alternative mark (gus gene, luciferase genes etc.) of plant or have resistance.By the plant transformed host both can be monocotyledons, also can be dicotyledons, as: paddy rice, wheat, corn, cucumber, tomato, willow, turfgrass or lucerne place etc.From the security consideration of transgenic plant, can not add any selected marker, directly screen transformed plant with plant seedling leaf dehydration degree.Carry that LEW2-1 expression carrier of the present invention can Ti-plasmids, Ri plasmid, plant viral vector, directly DNA conversion, microinjection, electricity be led, conventional biological method transformed plant cells or tissue such as agriculture bacillus mediated by using, and plant transformed is become plant through tissue cultivating.
Plant drought associated protein of the present invention and encoding gene thereof provide the support (guarantee) of gene and technology for farm crop drought resisting breeding.
Below in conjunction with embodiment technical scheme of the present invention is further described.
Description of drawings
Fig. 1 is that the drought resistance of lew2-1, wild-type plant compares photo
Fig. 2 is that the osmotic adjustment ability of lew2-1, wild-type plant compares photo
Fig. 3 is the expression characteristic of lew2-1, wild-type plant adversity gene under normal and environment stress condition
Embodiment
Experimental technique among the following embodiment is ordinary method if no special instructions.
The acquisition of embodiment 1, LEW2-1 and encoding gene thereof
Seedling 100-200mg with the environmental Arabidopis thaliana of wild-type Colombia is a material, extracts root and the total RNA of stem respectively with Trizol, detects the integrity of RNA through 1% agarose electrophoresis.Ss cDNA's is synthetic according to SuperScript TMThe method of II RNase H-Reverse Transcriptase, synthesizing single-stranded (ss) cDNA.With 10 times of synthetic strand cDNA dilutions, template as following PCR reaction: 20 μ l systems include 10 * PCR damping fluid, 2 μ l, 2.5mM dNTP (dATP, dGTP, dCTP, dTTP) mixture 1.6 μ l, each 1.0 μ l of the primer 1 of 5 μ m and primer 2, Taq enzyme (15U/ μ l) 0.1 μ l.Wherein, primer 1:5 ' ATGATGGAGTCTAGGTCTCCCAT 3 ', primer 2: 5 ' ACTGTCTT GATCGTTATTGCTAA3 '.On PE 9700 instrument, increase: 94 ℃ of pre-sex change 3min of elder generation; 94 ℃ of 30sec again, 55 ℃ of 30sec, 72 ℃ of 1min 30sec amount to 35 circulations; Last 72 ℃ are extended 4min, with the PCR product that obtains, make 1% agarose gel electrophoresis.The cDNA fragment that PCR is obtained is connected in the pGEM-T carrier, obtain containing the segmental carrier pT-LEW2-1 of purpose, the evaluation of checking order, the result shows the dna sequence dna that cDNA fragment that PCR obtains has sequence 1 in the sequence table, cDNA gene for LEW2-1, by 3217 based compositions, its encoding sequence is that coding has the protein of the amino acid residue sequence of sequence 2 in the sequence table from 5 ' end the 68th bit base to the, 3025 bit bases.
Embodiment 2, cultivation drought resistance enhanced Arabidopis thaliana
1, the acquisition of the homozygous mutation body lew2-1 that knocked out of LEW2-1 gene
According to the specific fragment in the LEW2-1 gene order, design primer: RNAi-F:5 ' ATGATGGAGTCTAGGTCTCCCAT 3 ' and RNAi-R:5 ' ACTGTCTTGATCGTTATTGCTAA 3 ', with the environmental arabidopsis thaliana genomic dna of Colombia is template, carry out pcr amplification, obtain the purpose fragment that length is about 350bp, (entry vector makes up conversion system to utilize the gateway system, available from INVITROGEN company) this 350bp purpose fragment is incorporated among the plasmid pJawoh-8 (available from INVITROGEN company), form inverted repeats, correct through order-checking detection integration fragment and direction of insertion, (selection markers is a kantlex to transform Agrobacterium, penbritin, gentamicin), utilize Agrobacterium to infect the method arabidopsis thaliana transformation, the F1 that obtains is used weedicide grass fourth phosphorus (basta for plant, available from INVITROGEN company) screening conversion seedling, separation and purification.To not having the strain that separates the proterties phenomenon through careless fourth phosphorus screening is that Trizol extracts total RNA, changes nylon membrane after the agarose electrophoresis, carries out Northern-blot and detects.Wherein, used probe is for being template with wild-type Arabidopis thaliana group DNA, utilize primer 1 and primer 2 to carry out the dna fragmentation that pcr amplification obtains, wherein 20 μ l PCR reaction systems include 10 * PCR damping fluid, 2 μ l, 2.5mM dNTP (dATP, dGTP, dCTP, dTTP) mixture 1.6 μ l, each 1.0 μ l of the primer 1 of 5 μ M and primer 2, Taq enzyme (15U/ μ l) 0.1 μ l.On PE 9700 instrument, increase: 94 ℃ of pre-sex change 3min; 94 ℃ of 30sec, 55 ℃ of 30sec, 72 ℃ of 1min 30sec amount to 35 circulations; 72 ℃ are extended 4min, with the PCR product that obtains, make 1% agarose gel electrophoresis.With total RNA hybridization, the result does not obtain hybridizing band, proves that the RNA of LEW2-1 genetic expression is degraded, obtains homozygous mutation body lew2-1 behind the probe P32 mark.
2, the drought resistance of lew2-1, wild-type plant relatively
Lew2-1 plant, the wild-type plant in 2 weeks of will growing in soil stopped respectively watering 10-14 days, and other culture condition is all identical, and here situation is to determine its drought resistance to observe that relatively plant survival rate and blade are withered.The result as shown in Figure 1, the survival rate that shows wild-type plant (WT) is 2%, the survival plant 1/3rd blade withered and yellow; The lew2-1 plant that the LEW2-1 gene is knocked out all survives, and does not have the withered and yellow blade of wilting; After LEW2-1 genetically deficient is described, can make the plant drought resisting,
3, the osmotic adjustment ability of lew2-1, wild-type plant relatively
The seed of lew2-1, wild-type plant is sowed respectively on common (MS) substratum, cultivated 5-6 days under the dark condition in 8 hours illumination in 22 ℃, 16 hours after following vernalization 2-3 days for 4 ℃, transfer to then on the substratum of the seminose that contains different concns (0,420,520mmol/L) and cultivated 7-10 days under the dark condition in 8 hours, observe relatively plant root and whole strain growing state to determine their osmotic adjustment ability illumination in 22 ℃, 16 hours.The result shows the rising along with mannose concentration as shown in Figure 2, and the root growth of wild-type plant (WT) slows down, and changes obviously; When mannose concentration reaches 420mmol/L, all 3/4ths blade flavescence of plant, when mannose concentration reaches 520mmol/L, all whole blade flavescence of plant; Though the root growth of the lew2-1 plant that the LEW2-1 gene is knocked out also slows down, change being not so good as the obvious of wild-type plant, when mannose concentration reaches 520mmol/L, have only 1/3rd blade flavescence of 1/5th plant; After LEW2-1 genetically deficient was described, the plant osmotic adjustment ability strengthened, and helps drought resisting.
Adversity gene expression in embodiment 3, detection lew2-1, the wild-type plant
Be chosen at the lew2-1 in 2 weeks of growth in common (MS) substratum, the wild-type plant carries out following processing respectively:
Water planting is handled: 2 weeks of growth in common liq (MS) substratum;
Arid is handled: at room temperature expose and placed 3 hours;
High optical processing: in common (MS) substratum under high light intensity (260 micromoles/second square centimeter) condition 2 weeks of growth;
Extract the plant RNA of above-mentioned processing respectively, be that (used probe is to be template with the plant genomic dna in contrast with rRNA, utilize primer ATGATGGAGTCTAGGTCTCCCAT and ACTGTCTTGATCGTTATTGCTAA to carry out the dna fragmentation that PCR obtains), utilize the RNA blot hybridization technique to detect adversity gene: Arabidopis thaliana arid, high salt and low temperature response gene RD29A, drought-enduring gene P5CS of anti-salt and ABA (dormin) synthetic gene SDR1, expression in lew2-1, wild-type plant respectively is to determine that it is to corresponding resistance size of coercing.Wherein, detecting the used probe of RD29A and be with the plant genomic dna is template, utilizes primer 5 ' GACGAG TCAGGA GCTGAGCTG3 ' and 5 ' CGATGCTGCCTTCTCGGTAGAG3 ' to carry out the dna fragmentation that PCR obtains; Detecting the used probe of P5CS and be with the plant genomic dna is template, utilizes primer 5 ' AGCCTTGGCACAGGAGCAACG3 ' and 5 ' TGAGAC CAGTGACAGCATCAAACA3 to carry out the dna fragmentation that PCR obtains; The used probe of SDR1 is to be template with the plant genomic dna, utilizes primer 5 ' TGATCACTGGAGGAGCCACAGG 3 ' and 5 ' CTCCGCTTATGTACC GCGAGTC3 ' to carry out the dna fragmentation that PCR obtains.
The result shows lew2-1 plant (control) under normal operation as shown in Figure 3, and water planting, under the arid and high optical processing condition, and RD29A, the expression amount of P5CS and SDR1 all is significantly higher than the wild-type plant.After LEW2-1 genetically deficient is described, can make the plant drought resisting, among Fig. 3, W represents the wild-type plant, and M represents the lew2-1 plant.
Sequence table
<160>2
<210>1
<211>3217
<212>DNA
<213〉Arabidopsis Arabidopis thaliana (Arabidopsis thaliana)
<400>1
atccatccaa?atctcaatcc?ctaattaggg?ttcatttctc?tgtttctcca?aacaggggaa 60
ttcgaagatg?atggagtcta?ggtctcccat?ctgcaacact?tgtggtgaag?agattggtgt 120
aaaatcaaac?ggagagttct?ttgtggcttg?tcatgagtgt?agtttcccga?tctgcaaagc 180
ttgtcttgag?tatgaattca?aagaaggtcg?aagaatttgc?ttgcgttgcg?gcaatcctta 240
cgatgagaat?gtgtttgatg?atgttgagac?aaagacatct?aaaactcaat?ccattgttcc 300
aacacagacc?aataacactt?ctcaggattc?agggattcat?gctagacata?taagtacagt 360
ctcaacaata?gacagtgaac?tgaatgatga?atatggcaat?ccaatttgga?agaacagagt 420
ggagagctgg?aaagacaaga?aagacaagaa?gagcaagaag?aagaagaaag?atccaaaagc 480
aacaaaagct?gaacaacatg?aggctcagat?tcctacccaa?cagcacatgg?aagatacgcc 540
accgaacaca?gaatctggtg?ctacagatgt?gctttcggtt?gtgattccta?tcccaaggac 600
aaaaatcact?tcatatagga?ttgtcatcat?catgcggttg?atcatcttgg?ctctgttttt 660
taactaccgt?atcacgcatc?ctgtcgatag?cgcttacggt?ttatggctaa?catctgtgat 720
atgtgagatt?tggtttgctg?tttcttgggt?gttggatcag?ttccctaaat?ggtctcctat 780
taaccgagaa?acttacatcg?accggttatc?cgcaagattc?gaaagagaag?gcgagcaatc 840
acagcttgca?gctgtagatt?tctttgttag?tacggtagat?ccattaaagg?agccaccttt 900
gataactgca?aacacggttc?tttcgatcct?cgcgcttgat?tatccggtgg?ataaagtctc 960
ttgctatgta?tctgatgatg?gtgctgcaat?gctttcgttt?gagtctttgg?ttgagacagc 1020
agattttgct?aggaaatggg?tacctttctg?caaaaagtac?tccatcgagc?cacgagctcc 1080
cgagttttac?ttctcgctta?aaatcgatta?cttgagggat?aaagttcaac?cttcttttgt 1140
gaaagaacgt?agagccatga?aaagagatta?tgaagagttt?aaaataagaa?tgaatgcttt 1200
agtcgccaag?gctcaaaaga?caccagaaga?aggatggaca?atgcaagatg?gaacatcttg 1260
gcccgggaac?aacactcgtg?accatcccgg?gatgattcag?gtttttcttg?gatatagcgg 1320
tgctcgcgac?attgaaggaa?atgaacttcc?aagattagtt?tacgtctcta?gagagaagag 1380
acctggttat?cagcatcaca?aaaaggccgg?ggcagagaac?gcattggtga?gggtgtctgc 1440
ggttttaacg?aatgctccat?tcattcttaa?ccttgattgt?gatcactacg?tcaacaatag 1500
caaagccgtg?cgtgaagcaa?tgtgcttttt?aatggatcct?gttgttggtc?aagacgtttg 1560
ctttgttcag?ttcccacaga?gatttgatgg?aatcgacaag?agtgatcgat?atgctaaccg 1620
caacattgtt?ttcttcgatg?ttaatatgag?agggcttgat?gggattcaag?gtccagttta 1680
tgttggtaca?ggtactgtct?ttagaagaca?agcactttac?ggatacagtc?caccttcaaa 1740
accgaggatt?ttaccgcaat?cttcatcatc?gtcgtgttgc?tgtctaacca?agaagaaaca 1800
acctcaagat?ccttccgaga?tttacaaaga?tgcaaagcga?gaagaacttg?atgctgcaat 1860
ctttaatctt?ggggacctag?acaactacga?tgagtacgac?agatcgatgc?tgatttcaca 1920
aacaagcttt?gagaaaacgt?ttggtctctc?tacggttttc?atcgagtcta?ctcttatgga 1980
gaatggcggt?gttcccgact?ctgtaaaccc?gtcaacgctc?atcaaagaag?ctattcatgt 2040
cattagctgt?ggatacgaag?agaaaactga?atggggaaaa?gaaataggat?ggatttacgg 2100
gtcgatcacc?gaagacattt?tgacgggttt?caagatgcat?tgtcgtggat?ggaggtcgat 2160
ttactgtatg?ccattaagac?cagcatttaa?aggatctgct?ccaatcaatc?tatcagatag 2220
gcttcaccag?gttctacgtt?gggctcttgg?ctcggttgag?atcttcctta?gccgacattg 2280
tcctttgtgg?tacggttgca?gcggaggccg?cctcaagttg?ctccagagat?tagcttatat 2340
aaacactatt?gtctacccat?tcacttcttt?gcctcttgtt?gcttactgta?ctcttccagc 2400
tatttgcctt?cttaccggca?aatttatcat?cccaacgcta?tcaaacctag?caagcatgct 2460
gtttctaggt?ctctttatat?caatcatctt?aacgagtgtc?ctcgagcttc?gatggagcgg 2520
agtcagtatc?gaagacttat?ggagaaacga?acagttttgg?gttattggag?gtgtctcagc 2580
tcatctcttt?gccgttttcc?aaggattcct?caaaatgctc?gctggtctcg?acacaaattt 2640
cacagtcaca?tcgaaaaccg?cagatgattt?agaattcggt?gagctttaca?ttgtcaaatg 2700
gacaactctc?ttgatccctc?cgacgtcact?tcttataatc?aacttggtcg?gagttgttgc 2760
tggattctct?gacgctctta?acaaaggtta?tgaagcttgg?ggacctttgt?ttgggaaggt 2820
atttttcgcc?ttttgggtga?ttcttcatct?ttatccattc?ctcaaaggtc?ttatgggaag 2880
acaaaacaga?acacctacta?ttgttattct?ctggtctatc?ttgcttgctt?ctgtgttttc 2940
acttgtttgg?gttcgtatca?atcctttcgt?ctccaaaacc?gatacgactt?ccctttctct 3000
gaactgtctt?ttgatcgatt?gctaagagaa?gatacgttat?gtttgtattt?tgaaagattg 3060
atcatatgtg?ttttggttgt?tttataaatt?ttcatatggt?tgcttgagcc?acaagttaag 3120
taatgttctt?attttagcaa?caagtcttgg?cgggttccgc?aagttaggtt?tctattgttt 3180
caacatcaac?atgtttttaa?aaagcaaaat?attttat 3217
<210>2
<211>985
<212>PRT
<213〉Arabidopsis Arabidopis thaliana (Arabidopsis thaliana)
<400>2
Met?Met?Glu?Ser?Arg?Ser?Pro?Ile?Cys?Asn?Thr?Cys?Gly?Glu?Glu?Ile
1 5 10 15
Gly?Val?Lys?Ser?Asn?Gly?Glu?Phe?Phe?Val?Ala?Cys?His?Glu?Cys?Ser
20 25 30
Phe?Pro?Ile?Cys?Lys?Ala?Cys?Leu?Glu?Tyr?Glu?Phe?Lys?Glu?Gly?Arg
35 40 45
Arg?Ile?Cys?Leu?Arg?Cys?Gly?Asn?Pro?Tyr?Asp?Glu?Asn?Val?Phe?Asp
50 55 60
Asp?Val?Glu?Thr?Lys?Thr?Ser?Lys?Thr?Gln?Ser?Ile?Val?Pro?Thr?Gln
65 70 75 80
Thr?Asn?Asn?Thr?Ser?Gln?Asp?Ser?Gly?Ile?His?Ala?Arg?His?Ile?Ser
85 90 95
Thr?Val?Ser?Thr?Ile?Asp?Ser?Glu?Leu?Asn?Asp?Glu?Tyr?Gly?Asn?Pro
100 105 110
Ile?Trp?Lys?Asn?Arg?Val?Glu?Ser?Trp?Lys?Asp?Lys?Lys?Asp?Lys?Lys
115 120 125
Ser?Lys?Lys?Lys?Lys?Lys?Asp?Pro?Lys?Ala?Thr?Lys?Ala?Glu?Gln?His
130 135 140
Glu?Ala?Gln?Ile?Pro?Thr?Gln?Gln?His?Met?Glu?Asp?Thr?Pro?Pro?Asn
145 150 155 160
Thr?Glu?Ser?Gly?Ala?Thr?Asp?Val?Leu?Ser?Val?Val?Ile?Pro?Ile?Pro
165 170 175
Arg?Thr?Lys?Ile?Thr?Ser?Tyr?Arg?Ile?Val?Ile?Ile?Met?Arg?Leu?Ile
180 185 190
Ile?Leu?Ala?Leu?Phe?Phe?Asn?Tyr?Arg?Ile?Thr?His?Pro?Val?Asp?Ser
195 200 205
Ala?Tyr?Gly?Leu?Trp?Leu?Thr?Ser?Val?Ile?Cys?Glu?Ile?Trp?Phe?Ala
210 215 220
Val?Ser?Trp?Val?Leu?Asp?Gln?Phe?Pro?Lys?Trp?Ser?Pro?Ile?Asn?Arg
225 230 235 240
Glu?Thr?Tyr?Ile?Asp?Arg?Leu?Ser?Ala?Arg?Phe?Glu?Arg?Glu?Gly?Glu
245 250 255
Gln?Ser?Gln?Leu?Ala?Ala?Val?Asp?Phe?Phe?Val?Ser?Thr?Val?Asp?Pro
260 265 270
Leu?Lys?Glu?Pro?Pro?LeuIle?Thr?Ala?Asn?Thr?Val?Leu?Ser?Ile?Leu
275 280 285
Ala?Leu?Asp?Tyr?Pro?Val?Asp?Lys?Val?Ser?Cys?Tyr?Val?Ser?Asp?Asp
290 295 300
Gly?Ala?Ala?Met?Leu?Ser?Phe?Glu?Ser?Leu?Val?Glu?Thr?Ala?Asp?Phe
305 310 315 320
Ala?Arg?Lys?Trp?Val?Pro?Phe?Cys?Lys?Lys?Tyr?Ser?Ile?Glu?Pro?Arg
325 330 335
Ala?Pro?Glu?Phe?Tyr?Phe?Ser?Leu?Lys?Ile?Asp?Tyr?Leu?Arg?Asp?Lys
340 345 350
Val?Gln?Pro?Ser?Phe?Val?Lys?Glu?Arg?Arg?Ala?Met?Lys?Arg?Asp?Tyr
355 360 365
Glu?Glu?Phe?Lys?Ile?Arg?Met?Asn?Ala?Leu?Val?Ala?Lys?Ala?Gln?Lys
370 375 380
Thr?Pro?Glu?Glu?Gly?Trp?Thr?Met?Gln?Asp?Gly?Thr?Ser?Trp?Pro?Gly
385 390 395 400
Asn?Asn?Thr?Arg?Asp?His?Pro?Gly?Met?Ile?Gln?Val?Phe?Leu?Gly?Tyr
405 410 415
Ser?Gly?Ala?Arg?Asp?Ile?Glu?Gly?Asn?Glu?Leu?Pro?Arg?Leu?Val?Tyr
420 425 430
Val?Ser?Arg?Glu?Lys?Arg?Pro?Gly?Tyr?Gln?His?His?Lys?Lys?Ala?Gly
435 440 445
Ala?Glu?Asn?Ala?Leu?Val?Arg?Val?Ser?Ala?Val?Leu?Thr?Asn?Ala?Pro
450 455 460
Phe?Ile?Leu?Asn?Leu?Asp?Cys?Asp?His?Tyr?Val?Asn?Asn?Ser?Lys?Ala
465 470 475 480
Val?Arg?Glu?Ala?Met?Cys?Phe?Leu?Met?Asp?Pro?Val?Val?Gly?Gln?Asp
485 490 495
Val?Cys?Phe?Val?Gln?Phe?Pro?Gln?Arg?Phe?Asp?Gly?Ile?Asp?Lys?Ser
500 505 510
Asp?Arg?Tyr?Ala?Asn?Arg?Asn?Ile?Val?Phe?Phe?Asp?Val?Asn?Met?Arg
515 520 525
Gly?Leu?Asp?Gly?Ile?Gln?Gly?Pro?Val?Tyr?Val?Gly?Thr?Gly?Thr?Val
530 535 540
Phe?Arg?Arg?Gln?Ala?Leu?Tyr?Gly?Tyr?Ser?Pro?Pro?Ser?Lys?Pro?Arg
545 550 555 560
Ile?Leu?Pro?Gln?Ser?Ser?Ser?Ser?Ser?Cys?Cys?Cys?Leu?Thr?Lys?Lys
565 570 575
Lys?Gln?Pro?Gln?Asp?Pro?Ser?Glu?Ile?Tyr?Lys?Asp?Ala?Lys?Arg?Glu
580 585 590
Glu?Leu?Asp?Ala?Ala?Ile?Phe?Asn?Leu?Gly?Asp?Leu?Asp?Asn?Tyr?Asp
595 600 605
Glu?Tyr?Asp?Arg?Ser?Met?Leu?Ile?Ser?Gln?Thr?Ser?Phe?Glu?Lys?Thr
610 615 620
Phe?Gly?Leu?Ser?Thr?Val?Phe?Ile?Glu?Ser?Thr?Leu?Met?Glu?Asn?Gly
625 630 635 640
Gly?Val?Pro?Asp?Ser?Val?Asn?Pro?Ser?Thr?Leu?Ile?Lys?Glu?Ala?Ile
645 650 655
His?Val?Ile?Ser?Cys?Gly?Tyr?Glu?Glu?Lys?Thr?Glu?Trp?Gly?Lys?Glu
660 665 670
Ile?Gly?Trp?Ile?Tyr?Gly?Ser?Ile?Thr?Glu?Asp?Ile?Leu?Thr?Gly?Phe
675 680 685
Lys?Met?His?Cys?Arg?Gly?Trp?Arg?Ser?Ile?Tyr?Cys?Met?Pro?Leu?Arg
690 695 700
Pro?Ala?Phe?Lys?Gly?Ser?Ala?Pro?Ile?Asn?Leu?Ser?Asp?Arg?Leu?His
705 710 715 720
Gln?Val?Leu?Arg?Trp?Ala?Leu?Gly?Ser?Val?Glu?Ile?Phe?Leu?Ser?Arg
725 730 735
His?Cys?Pro?Leu?Trp?Tyr?Gly?Cys?Ser?Gly?Gly?Arg?Leu?Lys?Leu?Leu
740 745 750
Gln?Arg?Leu?Ala?Tyr?Ile?Asn?Thr?Ile?Val?Tyr?Pro?Phe?Thr?Ser?Leu
755 760 765
Pro?Leu?Val?Ala?Tyr?Cys?Thr?Leu?Pro?Ala?Ile?Cys?Leu?Leu?Thr?Gly
770 775 780
Lys?Phe?Ile?Ile?Pro?Thr?Leu?Ser?Asn?Leu?Ala?Ser?Met?Leu?Phe?Leu
785 790 795 800
Gly?Leu?Phe?Ile?Ser?Ile?Ile?Leu?Thr?Ser?Val?Leu?Glu?Leu?Arg?Trp
805 810 815
Ser?Gly?Val?Ser?Ile?Glu?Asp?Leu?Trp?Arg?Asn?Glu?Gln?Phe?Trp?Val
820 825 830
Ile?Gly?Gly?Val?Ser?Ala?His?Leu?Phe?Ala?Val?Phe?Gln?Gly?Phe?Leu
835 840 845
Lys?Met?Leu?Ala?Gly?Leu?Asp?Thr?Asn?Phe?Thr?Val?Thr?Ser?Lys?Thr
850 855 860
Ala?Asp?Asp?Leu?Glu?Phe?Gly?Glu?Leu?Tyr?Ile?Val?Lys?Trp?Thr?Thr
865 870 875 880
Leu?Leu?Ile?Pro?Pro?Thr?Ser?Leu?Leu?Ile?Ile?Asn?Leu?Val?Gly?Val
885 890 895
Val?Ala?Gly?Phe?Ser?Asp?Ala?Leu?Asn?Lys?Gly?Tyr?Glu?Ala?Trp?Gly
900 905 910
Pro?Leu?Phe?Gly?Lys?Val?Phe?Phe?Ala?Phe?Trp?Val?Ile?Leu?His?Leu
915 920 925
Tyr?Pro?Phe?Leu?Lys?Gly?Leu?Met?Gly?Arg?Gln?Asn?Arg?Thr?Pro?Thr
930 935 940
Ile?Val?Ile?Leu?Trp?Ser?Ile?Leu?Leu?Ala?Ser?Val?Phe?Ser?Leu?Val
945 950 955 960
Trp?Val?Arg?Ile?Asn?Pro?Phe?Val?Ser?Lys?Thr?Asp?Thr?Thr?Ser?Leu
965 970 975
Ser?Leu?Asn?Cys?Leu?Leu?Ile?Asp?Cys
980 985

Claims (10)

1、植物抗旱相关蛋白,是具有下述氨基酸残基序列之一的蛋白质:1. The plant drought resistance-related protein is a protein with one of the following amino acid residue sequences: 1)序列表中的SEQ ID №:2;1) SEQ ID №: 2 in the sequence listing; 2)将序列表中SEQ ID №:2的氨基酸残基序列经过一个或几个氨基酸残基的取代和/或缺失和/或添加且与植物抗旱相关的蛋白质。2) A protein in which the amino acid residue sequence of SEQ ID No. 2 in the sequence listing has undergone one or several amino acid residue substitutions and/or deletions and/or additions and is related to plant drought resistance. 2、根据权利要求1所述的植物抗旱相关蛋白,其特征在于:所述植物抗旱相关蛋白具有序列表中的SEQ ID №:2的氨基酸残基序列。2. The plant drought-resistance-related protein according to claim 1, characterized in that: the plant drought-resistance-related protein has the amino acid residue sequence of SEQ ID No. 2 in the sequence list. 3、权利要求1或2所述的植物抗旱相关蛋白的编码基因。3. The gene encoding the plant drought resistance-related protein according to claim 1 or 2. 4、根据权利要求3所述的基因,其特征在于:所述植物抗旱相关蛋白的cDNA基因,具有下述核苷酸序列之一:4. The gene according to claim 3, characterized in that: the cDNA gene of the plant drought resistance-related protein has one of the following nucleotide sequences: 1)序列表中SEQ ID №:1的DNA序列;1) The DNA sequence of SEQ ID №: 1 in the sequence listing; 2)编码序列表中SEQ ID №:2蛋白质序列的多核苷酸;2) A polynucleotide encoding the protein sequence of SEQ ID №: 2 in the sequence listing; 3)在高严谨条件下可与序列表中SEQ ID №:1限定的DNA序列杂交的核苷酸序列;3) A nucleotide sequence that can hybridize to the DNA sequence defined by SEQ ID №: 1 in the sequence listing under high stringency conditions; 4)与序列表中SEQ ID №:1限定的DNA序列具有90%以上同源性,且编码相同功能蛋白质的DNA序列。4) A DNA sequence that has more than 90% homology with the DNA sequence defined by SEQ ID №: 1 in the sequence listing and encodes the same functional protein. 5、含有权利要求3或4所述植物抗旱相关蛋白编码基因的表达载体。5. The expression vector containing the gene encoding the plant drought resistance-related protein according to claim 3 or 4. 6、含有权利要求3或4所述植物抗旱相关蛋白编码基因的细胞系。6. A cell line containing the gene encoding the plant drought resistance-related protein according to claim 3 or 4. 7、含有权利要求3或4所述植物抗旱相关蛋白编码基因的宿主菌。7. A host bacterium containing the gene encoding the plant drought resistance-related protein according to claim 3 or 4. 8、扩增权利要求3或4所述植物抗旱相关蛋白编码基因的引物。8. A primer for amplifying the gene encoding the plant drought resistance-related protein as claimed in claim 3 or 4. 9、一种利用权利要求3或4所述植物抗旱性相关蛋白的编码基因增强植物抗旱性的方法,是抑制植物中的所述植物抗旱相关蛋白编码基因的表达。9. A method for enhancing plant drought resistance by utilizing the gene encoding the plant drought resistance-related protein of claim 3 or 4, comprising inhibiting the expression of the gene encoding the plant drought resistance-related protein in the plant. 10、根据权利要求9所述的方法,其特征在于:抑制植物中的所述植物抗旱性相关蛋白编码基因的表达方法包括植物病毒载体介导基因沉默的方法,反义核酸技术沉默基因的方法和siRNA介导的基因沉默方法。10. The method according to claim 9, characterized in that: the method of inhibiting the expression of the gene encoding the plant drought resistance-related protein in the plant includes the method of plant virus vector mediated gene silencing, the method of antisense nucleic acid technology silencing gene and siRNA-mediated gene silencing methods.
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