CN114573670B - 水稻Os12g0594200基因在提高水稻耐盐性方面的应用 - Google Patents

水稻Os12g0594200基因在提高水稻耐盐性方面的应用 Download PDF

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CN114573670B
CN114573670B CN202210199053.5A CN202210199053A CN114573670B CN 114573670 B CN114573670 B CN 114573670B CN 202210199053 A CN202210199053 A CN 202210199053A CN 114573670 B CN114573670 B CN 114573670B
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刘娟
季新
炎会敏
张天海
卫云飞
刘秋员
李淑梅
董丽平
王付娟
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Abstract

本发明属于基因工程领域,具体涉及水稻Os12g0594200基因在提高水稻耐盐性方面的应用。本发明通过对Os12g0594200基因的T‑DNA插入突变体株系进行鉴定,获得Os12g0594200基因功能缺失的纯合突变体。使用150mM NaCl对突变体和野生型DJ进行盐胁迫处理10d后,发现Os12g0594200基因功能缺失突变体的存活率显著高于野生型。基因Os12g0594200在提高水稻耐盐性上具有潜在的应用价值,可利用分子改良技术在生产中加以利用,对水稻高产、稳产和抗逆育种具有重要的实践意义。

Description

水稻Os12g0594200基因在提高水稻耐盐性方面的应用
技术领域
本发明属于基因工程领域,具体涉及水稻Os12g0594200基因在提高水稻耐盐性方面的应用。
背景技术
植物的生长发育受各种环境因子介导调控,不利的环境因素抑制植物的生长发育。在植物的生长过程中,会经常遭受各种生物和非生物胁迫,其中,盐渍是严重危害植物生长发育的一种非生物胁迫。
水稻(Oryza sativa L.)是我国重要的粮食作物之一,其可持续生产对保障我国粮食安全具有重要意义。水稻属于沼生植物,其特殊的栽培方式使其成为盐渍化土地开发利用的先锋作物。而水稻又是对盐胁迫高度敏感的作物,在不同的生长发育过程中对盐的敏感性不同(Munns R,Tester M.Mechanisms of salinity tolerance[J].Annual ReviewPlant Biology.2008,59(1):651-681),不同基因型水稻对盐胁迫响应也存在差异(Ali MN,Yeasmin L,Gantait S,et al.Screening of rice landraces for salinitytolerance at seedling stage through morphological and molecular markers[J].Physiology and Molecular Biology of Plants.2014,20(4):411-423)。因此,挖掘水稻耐盐相关基因,探究水稻耐盐机理,培育耐盐水稻新品种,提高水稻的耐盐性,对保障我国粮食安全具有重要意义。
关于水稻耐盐基因或QTL的鉴定,国内外已有大量研究报道。井文等(井文,章文华.水稻耐盐基因定位与克隆及品种耐盐性分子标记辅助选择改良研究进展[J].中国水稻科学,2017,31(2):111-123)统计分析了47个水稻耐盐QTL研究,共检测到964个耐盐相关QTL。水稻各生长发育时期的耐盐QTL在水稻12条染色体上均有分布,其中幼苗期耐盐QTL有514个,超过总数的50%,占比最多。但检测到的大部分QTL表型贡献率较小,表型贡献率在20%以上的耐盐QTL只有101个,因此,水稻耐盐性相关基因精细定位和克隆难度较大,目前在育种上利用的耐盐QTL主要是位于水稻第1染色体上的qSKC-1和Saltol两个位点(Ren Z,Gao J,Li L,et al.Arice quantitative trait locus for salt tolerance encodes asodium transporter[J].Nature genetics.2005,37(10):1141-1146)。利用突变体来分离耐盐基因已成为水稻耐盐新基因挖掘的有效途径之一,筛选鉴定利用T-DNA、转座子(Ac/Ds)和逆转座子(Tos17)等插入元件构建的水稻插入突变体,可以大大节省后期的突变基因分离时间,为挖掘新的耐盐水稻相关基因提供新的理论依据。
发明内容
本发明的目的是提供水稻Os12g0594200基因在提高水稻耐盐性方面的应用,首次证明了基因Os12g0594200在调控水稻耐盐性中具有重要作用。
为了实现以上目的,本发明所采用的技术方案是:
水稻Os12g0594200基因在提高水稻耐盐性方面的应用。
本发明通过对Os12g0594200基因的T-DNA插入突变体株系进行鉴定,获得Os12g0594200基因功能缺失的纯合突变体。使用150mM NaCl对突变体和野生型DJ进行盐胁迫处理10d后,发现Os12g0594200基因功能缺失突变体的存活率显著高于野生型。基因Os12g0594200在提高水稻耐盐性上具有潜在的应用价值,可利用分子改良技术在生产中加以利用,对水稻高产、稳产和抗逆育种具有重要的实践意义。
优选地,水稻Os12g0594200基因的核苷酸序列如SEQ ID NO:1所示;水稻Os12g0594200基因编码蛋白质具有SEQ ID NO:2所示的氨基酸序列。
进一步优选地,调控水稻中Os12g0594200基因功能缺失或低表达,提高水稻耐盐性。
优选地,所述应用为培育耐盐水稻品系。
进一步优选地,对水稻Os12g0594200基因进行敲除或调控水稻Os12g0594200基因低表达,获得耐盐性水稻。基因Os12g0594200在调控水稻耐盐性中具有重要作用,本发明为提高水稻耐盐胁迫能力和培育耐盐水稻新品系提供了理论依据,可利用分子改良技术在生产中加以利用,对我国农业生产具有重要的应用价值。
进一步优选地,选用水稻Os12g0594200基因功能缺失突变体参与杂交,选育耐盐性水稻。
附图说明
图1为本发明中T-DNA插入突变体鉴定电泳图;
图2为本发明中Os12g0594200基因T-DNA插入位点示意图;
图3为本发明中野生型DJ和突变体Os12g0594200基因表达量分析;
图4为本发明中正常条件下野生型DJ和突变体幼苗表型;标尺:13cm;
图5为本发明中150mM NaCl胁迫10d野生型DJ和突变体幼苗表型;标尺:13cm;
图6为本发明中150mM NaCl胁迫10d野生型DJ和突变体幼苗存活率统计;**P<0.01。
具体实施方式
本发明主要提供了Os12g0594200基因(水稻数据库The Rice AnnotationProject(RAP)的登录号)在调控水稻耐盐性方面的应用,提供了培育耐盐水稻品系的新思路。Os12g0594200基因具有SEQ ID NO:1所示的核苷酸序列,其编码蛋白质具有SEQ ID NO:2所示的氨基酸序列。
下面结合具体实施例对本发明的实施过程进行详细说明。
实施例
本实施例的水稻Os12g0594200基因在提高水稻耐盐性方面的应用,具体说明如下:
1、Os12g0594200基因突变体
Os12g0594200基因突变体购买于韩国水稻T-DNA突变体库(Rice T-DNAInsertion Seqence Database),编号为PFG_4A-00132.R,遗传背景为粳稻品种Dongjin(DJ)。将种子用10%H2O2消毒10min,蒸馏水冲洗5-6次,置于培养箱30℃催芽萌发2d。将露白的种子播于PCR板孔(底部有小孔)中,固定在泡沫板上,泡沫板漂于水培盒子中,用清水培养生长至1叶1心,取新鲜叶片,保存于-80℃低温冰箱备用。
2、Os12g0594200基因突变体的鉴定
使用CTAB法提取水稻幼苗新鲜叶片的DNA,CTAB提取液配制方法如下表1所示:
表1CTAB提取液
依据T-DNA突变体库中,编号PFG_4A-00132.R突变体株系T-DNA插入位点附近侧翼序列信息和pGA2715载体序列信息,设计T-DNA插入位置两侧序列的引物RP(SEQ ID NO:4)和LP(SEQ ID NO:3),外源T-DNA边界引物RB(SEQ ID NO:5),引物序列见表2。
表2引物列表
以DNA为模板,依据两轮PCR原理进行PCR扩增(扩增体系如下表3所示),第一轮:鉴定有无T-DNA插入,以LP+RP为一对引物进行PCR扩增;第二轮:鉴定突变体纯合突变或杂合突变,以RP+RB为一对引物进行扩增。然后,取10μL PCR产物用1%的琼脂糖凝胶进行电泳,120V电泳25min,用凝胶成像系统观察并拍照。
如图1所示,与野生型DJ相比,突变体mutant16-3用LP+RP引物扩增无目的条带,表明mutant16-3含有T-DNA插入;而用RP+RB引物扩增有明显条带,表明突变体mutant16-3为纯合突变体。
表3扩增体系
将所鉴定的纯合体PCR产物送生工生物工程(上海)股份有限公司进行测序,测序结果比对分析显示,突变体mutant16-3中T-DNA插入在基因Os12g0594200第1外显子区域,在ATG下游25bp处插入(如图2所示)。由于T-DNA插入载体pGA2715靠近RB端不含有启动子,因此T-DNA插入不会导致插入位点附近的转录本表达升高。
采用TRIzol试剂(Invitrogen)提取突变体和DJ的总RNA,采用MMLV逆转录酶(TransGen Biotech)试剂盒进行RNA的反转录,采用Go Taq qPCR反应混合体系(Promega)进行实时荧光定量PCR,定量引物Os12g0594200-F(SEQ ID NO:6)和Os12g0594200-R(SEQID NO:7)见表2。
结果如图3所示,与野生型DJ相比,突变体mutant16-3株系Os12g0594200基因表达量几乎为0。因此Os12g0594200基因T-DNA插入突变体mutant16-3属于功能缺失型纯合突变体。
3、耐盐实验
选取野生型DJ和纯合突变体mutant16-3株系饱满一致的种子,用10%H2O2消毒10min,蒸馏水冲洗5-6次,置于培养箱28℃催芽萌发2d。将露白的种子播于PCR板孔(底部有小孔)中,固定在泡沫板上,泡沫板漂于水培盒子中。先用清水培养5d,再用1/4全营养液培养2d,用1/2全营养液培养2d,之后采用全营养液培养。水培营养液配方参照国际水稻所营养液等方法:1.5mM NH4NO3,0.3mM NaH2PO4,0.5mM K2SO4,1.0mM CaCl2,1.6mM MgSO4,0.5mMNaSiO3,20μM Fe-EDTA,0.075μM(NH4)6Mo7O24,18.9μM H3BO3,9.5μM MnCl2,0.1μM CuSO4,0.2μM ZnSO4,70.8μM citric acid,pH 5.5。营养液pH值保持在5.2-5.5,每2d更换一次营养液。
苗龄15d后,挑选长势一致的水稻幼苗,用海绵固定于有孔的漂浮板上,用全营养液继续培养。待水稻幼苗生长至5叶1心时,在营养液中加入150mM NaCl(终浓度)进行盐胁迫处理,以正常营养液培养作为对照。每3d更换营养液及NaCl处理液,盐胁迫处理10d后观察野生型DJ和突变体mutant16-3株系生长状况。
在正常营养液培养条件下,和野生型DJ和突变体mutant16-3株系生长状况均良好(图4),而经150mM NaCl处理10d后,突变体mutant16-3的绿叶数明显多于野生型DJ,表明其生长状况明显优于野生型DJ(图5)。
对盐胁迫处理后水稻幼苗存活率进行统计分析,结果表明,正常条件下野生型DJ和突变体mutant16-3株系存活率均为100%,而150mM NaCl处理10d后,突变体mutant16-3株系存活率高达94.44%,而野生型DJ的存活率仅为69.44%,差异达极显著水平(图6)。表明Os12g0594200基因的功能缺失可显著提高水稻耐盐胁迫的能力。
因此,在实际应用中,可通过基因编辑技术如CRISPR-Cas9等分子改良技术对Os12g0594200基因进行敲除或低表达,获得高耐盐性水稻。也可选用水稻Os12g0594200基因功能缺失突变体参与杂交,选育耐盐性水稻。本发明为快速创制耐盐水稻新品系提供了理论依据和一种简单有效的技术手段。
<110> 信阳农林学院
<120> 水稻Os12g0594200基因在提高水稻耐盐性方面的应用
<160> 7
<170> PatentIn version 3.5
<210> 1
<211> 3189
<212> DNA
<213> 水稻(Oryza sativa L.)
<221> Os12g0594200基因
<400> 1
atgttgcatg ggaagattga agatttagtt agttctttgg aagacaagtt tacctcagta 60
ttttccactg cacttctaaa ctgtagtaag gttcggtttg atgatgtcac agtacaagtc 120
cgatatcttg atgattccca tcttgtcata ttgaggacac atgacctaca atttggtcct 180
gagcttgttt tccgttgctc tctgttcaga ggattagttg ggtcttatat gccatctaga 240
aagaagaatc atatgtttgt caaatgtgat cactttgagt ttttgctgaa ggggaatgat 300
catacagatt gcactgtatc tttgactggg acaactgctt ctgttaggtt agacaatctc 360
catcttactg cttttggaat tcatgttgcc agtgcattct gggaaattgc acccaaattt 420
attccatcat tgatggtgat attggaaatt acaagccaaa aggaagatta tgaggttagg 480
agtggtagag agctttggaa aatagctgca caaaagcttg aaaactcaat agcatgtcgc 540
agattttctt taaggaaggc catgagctgt gcctctttct ggcagcacta tgttcatact 600
tatattttgt tattatcatt acttggatat ccttctggcg aagttataaa aagaaactgc 660
agtagggtac aaagcaccag gaaagtcagg gaaactatta gaaatcattt gaaaactgtc 720
agtgaattag aggagaagat ccctgtagaa gctattgcta gaggacgaag tgcagcacgt 780
tcaaaactaa ccgtgtcaca gcaacagagc gagcaagaat tatcaaaagc acttttggtt 840
tcaaacacat tgaaatttct ctcacccttg ttatatgttt ggaagtttct tgtattcata 900
tgctggtcac tgtggagatt tatgagctct agaagcagag ggtgcaaatc cagtgtgcaa 960
aattttcctt gtgcttctga tgattcagaa atcaaggtac agttcagcat ctgccttggt 1020
gaactttctg taacattttt acccctcagt gatcaccact tcactggtac accaaagtta 1080
aataatggga acaaggctta tcacattgac acaccttcag tacatcttgt aataaaatca 1140
tcatccatac tttacacaga tggtttcacc acacagtcat tttttttcgt aattggtgaa 1200
ctgaaggcag acgtttctgg tataccaaag ttgttacaag cagccaatgg cagcattact 1260
aggaggaatt catcttttgg aacagaagag ttttctgaag atattaattc aaagacaata 1320
ctctggagtg actctgccag tatgcatcca ttttctggaa aacagcctga tgagtccttt 1380
tcctacaatg gtgattcatc tattgccctt ctacagagtg atatggagga actgtggtcc 1440
ttctggacgg tagtaagcac tttctacaat gactcaggtg tgatgcatca tgaaaaacct 1500
tctgttattt ttgaattcaa atcatttctc attgatcctt acaaaagtac aagtggtttt 1560
cagcaatgta gatttacagt tgggagggta aaccttgatg tggattattt atgtgcttca 1620
tcaacttatc tcctctacag gcaatttgtg cactacaaag agctgaaaga actaactgaa 1680
aaatcagcag aattttcaaa cagaagtgat agctgtgcga cacgtacaag tggaattgct 1740
gataaattga gatcattcaa tcagagactg aagtttttga ttgcagatgc tattccaata 1800
aacacccttc agatttcagc actcattgca ggtccaagta tcaggttaat atttgataaa 1860
aacagcctgt tgcaaaacag caaaaataag caagtccccc tgttttctca gatgaataac 1920
acgtcatgca taactctcag ccttgcgtat gttgaatgtg ttatctggcc agcatctcta 1980
tcttctttaa ctcagaaagc tgatttgcat gccaaagaat cacatgatac atttgatgga 2040
gtggaggagc agctagagtc tcatcgttta gcactggata gtgcaggaca tgtttattca 2100
gggactgttg tgttggattc ttgcttcaaa tttgctgatt taactcttct agtggatcat 2160
atagaggcaa atcagcagtt tcacattttt ggaccaatgt cagccaattt ccagctgtca 2220
acaagcagga agtatgccag ttccttcttt gtcaccagaa acattctctc aataaacttg 2280
ggaggaagga ttgttggttg tatggctttc ttattcatgg acgatctgtt tcccattttc 2340
caggttatca aaggcatgca aatgttggca ttgaattctg agttgggtga cattaagtat 2400
tctcaatgtt ttattggaag gttagcatcg ttttgcaaca ggcatatgga tggaagcaca 2460
atgggtactg ctgttgagta tattatccat gaagaaacag ttgactgtta tacagaactc 2520
gtggctgaga tgaaacttga tttggaacca acacacatca tcgttagtgc ttcacgcgat 2580
ggacttatct ttaatcctgc tatgttctcc aacagtgaca taaactacat cagtagctca 2640
actgtgtttg agggcgtagc agcactggaa tctcttgaca tattagcttt aggtatttgg 2700
ttttccagca gaagctcttc tctgaaactt ctgcttgatg gagaatgcac agacctcctt 2760
gttaacttgt ctggaattca gtctgtcgtt ttcgagaacc aacctcagat gagtatttgt 2820
gatgatatac tacagtacag taccgtgctt agcagctctc catatgacaa gagtcagttc 2880
attttatcgg attgtgtatt tcatctgtgt gctggtccca ataaagacag cctgatgaat 2940
gataaaatgc aagttgaatc tataagtggt tgcagtaccg attcttcagg aatttattat 3000
tttattgaac ttgaatttac tgaggtttat attggagact acaacatgca caatttttta 3060
attgaagtca ataaaccaag caaacagaaa attgctctgc tcattcatga tgatcttcag 3120
attgtcaaat gcaaaatcaa ggtgcaccat ccttttttta attttttcaa tactagtaga 3180
cagatgtga 3189
<210> 2
<211> 1062
<212> PRT
<213> 水稻(Oryza sativa L.)
<221> Os12g0594200基因编码蛋白
<400> 2
Met Leu His Gly Lys Ile Glu Asp Leu Val Ser Ser Leu Glu Asp Lys
1 5 10 15
Phe Thr Ser Val Phe Ser Thr Ala Leu Leu Asn Cys Ser Lys Val Arg
20 25 30
Phe Asp Asp Val Thr Val Gln Val Arg Tyr Leu Asp Asp Ser His Leu
35 40 45
Val Ile Leu Arg Thr His Asp Leu Gln Phe Gly Pro Glu Leu Val Phe
50 55 60
Arg Cys Ser Leu Phe Arg Gly Leu Val Gly Ser Tyr Met Pro Ser Arg
65 70 75 80
Lys Lys Asn His Met Phe Val Lys Cys Asp His Phe Glu Phe Leu Leu
85 90 95
Lys Gly Asn Asp His Thr Asp Cys Thr Val Ser Leu Thr Gly Thr Thr
100 105 110
Ala Ser Val Arg Leu Asp Asn Leu His Leu Thr Ala Phe Gly Ile His
115 120 125
Val Ala Ser Ala Phe Trp Glu Ile Ala Pro Lys Phe Ile Pro Ser Leu
130 135 140
Met Val Ile Leu Glu Ile Thr Ser Gln Lys Glu Asp Tyr Glu Val Arg
145 150 155 160
Ser Gly Arg Glu Leu Trp Lys Ile Ala Ala Gln Lys Leu Glu Asn Ser
165 170 175
Ile Ala Cys Arg Arg Phe Ser Leu Arg Lys Ala Met Ser Cys Ala Ser
180 185 190
Phe Trp Gln His Tyr Val His Thr Tyr Ile Leu Leu Leu Ser Leu Leu
195 200 205
Gly Tyr Pro Ser Gly Glu Val Ile Lys Arg Asn Cys Ser Arg Val Gln
210 215 220
Ser Thr Arg Lys Val Arg Glu Thr Ile Arg Asn His Leu Lys Thr Val
225 230 235 240
Ser Glu Leu Glu Glu Lys Ile Pro Val Glu Ala Ile Ala Arg Gly Arg
245 250 255
Ser Ala Ala Arg Ser Lys Leu Thr Val Ser Gln Gln Gln Ser Glu Gln
260 265 270
Glu Leu Ser Lys Ala Leu Leu Val Ser Asn Thr Leu Lys Phe Leu Ser
275 280 285
Pro Leu Leu Tyr Val Trp Lys Phe Leu Val Phe Ile Cys Trp Ser Leu
290 295 300
Trp Arg Phe Met Ser Ser Arg Ser Arg Gly Cys Lys Ser Ser Val Gln
305 310 315 320
Asn Phe Pro Cys Ala Ser Asp Asp Ser Glu Ile Lys Val Gln Phe Ser
325 330 335
Ile Cys Leu Gly Glu Leu Ser Val Thr Phe Leu Pro Leu Ser Asp His
340 345 350
His Phe Thr Gly Thr Pro Lys Leu Asn Asn Gly Asn Lys Ala Tyr His
355 360 365
Ile Asp Thr Pro Ser Val His Leu Val Ile Lys Ser Ser Ser Ile Leu
370 375 380
Tyr Thr Asp Gly Phe Thr Thr Gln Ser Phe Phe Phe Val Ile Gly Glu
385 390 395 400
Leu Lys Ala Asp Val Ser Gly Ile Pro Lys Leu Leu Gln Ala Ala Asn
405 410 415
Gly Ser Ile Thr Arg Arg Asn Ser Ser Phe Gly Thr Glu Glu Phe Ser
420 425 430
Glu Asp Ile Asn Ser Lys Thr Ile Leu Trp Ser Asp Ser Ala Ser Met
435 440 445
His Pro Phe Ser Gly Lys Gln Pro Asp Glu Ser Phe Ser Tyr Asn Gly
450 455 460
Asp Ser Ser Ile Ala Leu Leu Gln Ser Asp Met Glu Glu Leu Trp Ser
465 470 475 480
Phe Trp Thr Val Val Ser Thr Phe Tyr Asn Asp Ser Gly Val Met His
485 490 495
His Glu Lys Pro Ser Val Ile Phe Glu Phe Lys Ser Phe Leu Ile Asp
500 505 510
Pro Tyr Lys Ser Thr Ser Gly Phe Gln Gln Cys Arg Phe Thr Val Gly
515 520 525
Arg Val Asn Leu Asp Val Asp Tyr Leu Cys Ala Ser Ser Thr Tyr Leu
530 535 540
Leu Tyr Arg Gln Phe Val His Tyr Lys Glu Leu Lys Glu Leu Thr Glu
545 550 555 560
Lys Ser Ala Glu Phe Ser Asn Arg Ser Asp Ser Cys Ala Thr Arg Thr
565 570 575
Ser Gly Ile Ala Asp Lys Leu Arg Ser Phe Asn Gln Arg Leu Lys Phe
580 585 590
Leu Ile Ala Asp Ala Ile Pro Ile Asn Thr Leu Gln Ile Ser Ala Leu
595 600 605
Ile Ala Gly Pro Ser Ile Arg Leu Ile Phe Asp Lys Asn Ser Leu Leu
610 615 620
Gln Asn Ser Lys Asn Lys Gln Val Pro Leu Phe Ser Gln Met Asn Asn
625 630 635 640
Thr Ser Cys Ile Thr Leu Ser Leu Ala Tyr Val Glu Cys Val Ile Trp
645 650 655
Pro Ala Ser Leu Ser Ser Leu Thr Gln Lys Ala Asp Leu His Ala Lys
660 665 670
Glu Ser His Asp Thr Phe Asp Gly Val Glu Glu Gln Leu Glu Ser His
675 680 685
Arg Leu Ala Leu Asp Ser Ala Gly His Val Tyr Ser Gly Thr Val Val
690 695 700
Leu Asp Ser Cys Phe Lys Phe Ala Asp Leu Thr Leu Leu Val Asp His
705 710 715 720
Ile Glu Ala Asn Gln Gln Phe His Ile Phe Gly Pro Met Ser Ala Asn
725 730 735
Phe Gln Leu Ser Thr Ser Arg Lys Tyr Ala Ser Ser Phe Phe Val Thr
740 745 750
Arg Asn Ile Leu Ser Ile Asn Leu Gly Gly Arg Ile Val Gly Cys Met
755 760 765
Ala Phe Leu Phe Met Asp Asp Leu Phe Pro Ile Phe Gln Val Ile Lys
770 775 780
Gly Met Gln Met Leu Ala Leu Asn Ser Glu Leu Gly Asp Ile Lys Tyr
785 790 795 800
Ser Gln Cys Phe Ile Gly Arg Leu Ala Ser Phe Cys Asn Arg His Met
805 810 815
Asp Gly Ser Thr Met Gly Thr Ala Val Glu Tyr Ile Ile His Glu Glu
820 825 830
Thr Val Asp Cys Tyr Thr Glu Leu Val Ala Glu Met Lys Leu Asp Leu
835 840 845
Glu Pro Thr His Ile Ile Val Ser Ala Ser Arg Asp Gly Leu Ile Phe
850 855 860
Asn Pro Ala Met Phe Ser Asn Ser Asp Ile Asn Tyr Ile Ser Ser Ser
865 870 875 880
Thr Val Phe Glu Gly Val Ala Ala Leu Glu Ser Leu Asp Ile Leu Ala
885 890 895
Leu Gly Ile Trp Phe Ser Ser Arg Ser Ser Ser Leu Lys Leu Leu Leu
900 905 910
Asp Gly Glu Cys Thr Asp Leu Leu Val Asn Leu Ser Gly Ile Gln Ser
915 920 925
Val Val Phe Glu Asn Gln Pro Gln Met Ser Ile Cys Asp Asp Ile Leu
930 935 940
Gln Tyr Ser Thr Val Leu Ser Ser Ser Pro Tyr Asp Lys Ser Gln Phe
945 950 955 960
Ile Leu Ser Asp Cys Val Phe His Leu Cys Ala Gly Pro Asn Lys Asp
965 970 975
Ser Leu Met Asn Asp Lys Met Gln Val Glu Ser Ile Ser Gly Cys Ser
980 985 990
Thr Asp Ser Ser Gly Ile Tyr Tyr Phe Ile Glu Leu Glu Phe Thr Glu
995 1000 1005
Val Tyr Ile Gly Asp Tyr Asn Met His Asn Phe Leu Ile Glu Val
1010 1015 1020
Asn Lys Pro Ser Lys Gln Lys Ile Ala Leu Leu Ile His Asp Asp
1025 1030 1035
Leu Gln Ile Val Lys Cys Lys Ile Lys Val His His Pro Phe Phe
1040 1045 1050
Asn Phe Phe Asn Thr Ser Arg Gln Met
1055 1060
<210> 3
<211> 20
<212> DNA
<213> 人工序列
<221> 引物LP
<400> 3
cacatcatag cattgtgggg 20
<210> 4
<211> 20
<212> DNA
<213> 人工序列
<221> 引物RP
<400> 4
aatttcccag aatgcactgg 20
<210> 5
<211> 20
<212> DNA
<213> 人工序列
<221> 引物RB
<400> 5
aacgctgatc aattccacag 20
<210> 6
<211> 20
<212> DNA
<213> 人工序列
<221> Os12g0594200-F
<400> 6
tggatggaag cacaatgggt 20
<210> 7
<211> 20
<212> DNA
<213> 人工序列
<221> Os12g0594200-R
<400> 7
cgcgtgaagc actaacgatg 20

Claims (5)

1.水稻Os12g0594200基因在调控水稻耐盐性方面的应用。
2.如权利要求1所述的应用,其特征在于,水稻Os12g0594200基因的核苷酸序列如SEQID NO:1 所示;水稻Os12g0594200基因编码蛋白质具有SEQ ID NO:2 所示的氨基酸序列。
3.如权利要求1或2所述的应用,其特征在于,调控水稻中Os12g0594200基因功能缺失或低表达,提高水稻耐盐性。
4.一种培育耐盐水稻品系的方法,其特征在于,对水稻Os12g0594200基因进行敲除或调控水稻Os12g0594200基因低表达,获得耐盐性水稻。
5.如权利要求4所述的方法,其特征在于,选用水稻Os12g0594200基因功能缺失突变体参与杂交,选育耐盐性水稻。
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