小麦脱落酸受体基因TaPYR1介导植株抵御干旱逆境功能研究
发布时间:2021-10-01 05:28
脱落酸(ABA)受体PYR/PYL/RCAR通过与渗透胁迫诱导的ABA结合,参与植株体内ABA介导的信号转导过程,在调控植株干旱逆境抵御过程中具有重要的生物学功能。本研究对1个响应干旱的小麦PYR家族成员TaPYR1分子特征、应答干旱表达模式及其介导植株抵御干旱逆境的功能进行了鉴定。主要研究结果如下:1.通过生物信息学分析方法对小麦ABA受体基因TaPYR1进行分析,全长840 bp,开放阅读框636 bp。TaPYR1蛋白分子量为22.621 kD,等电点(PI)为4.97。TaPYR1与植物种属中部分PYR基因在氨基酸序列水平上高度同源,编码蛋白与植物种属部分同源蛋白在序列组成上高度相似,含有PYR家族蛋白的SRPBCC超家族保守区域(44-192 aa)。对该基因编码蛋白的亚细胞定位试验结果显示,TaPYR1经内质网分选后定位于细胞质膜,表明该受体蛋白在此处参与结合ABA及介导特定ABA信号传递。2.表达分析表明,TaPYR1基因在小麦根、叶中均呈明显的干旱诱导表达模式,正常生长条件下,小麦根、叶片内TaPYR1转录本数量均较低;干旱处理下,TaPYR1表达上调,表现在48 h处...
【文章来源】:河北农业大学河北省
【文章页数】:76 页
【学位级别】:硕士
【部分图文】:
图3-丨小麦7b/>y/?/基因氨基酸?
?河北农业大学硕士学位(毕业)论文???经TMHMM分析该蛋白没有跨膜域(图3-2)。??#?TOBSEQUEJKE?Lsnrth:?840??it?VEBSEQOERCE?Number?of?predicted?TMHs:?0??U?WEBSEQUENCE?Exp?number?of?AAs?in?THHs:?0.0791499999999999998??S?WEBSEQUEICE?Exp?number,?first?60?AAs:?0.02045??tt?WEBSEQUENCE?Total?prob?of?N-in:?0.?00279??WEBSEQUEHCE?TMHMH2.0?outside?1?840??TMHMM?posterior?probabilities?for?WEBSEQUENCE??1.2??.?.?.?.?.?.?.?.——??1????-....???—??0.8?■??>*??|?06?.??0.4??0.2?■??0??1?'?1?1?1?1?1?????0?100?200?300?400?500?600?700?800??transmembrane???inside??outside????图3-2小麦TaPYRl蛋白跨膜域分析结果??Fig.?3-2?Results?of?analysis?of?wheat?TaPYRl?protein?transmembrane?domain??利用SignaIP-4.1软件预测TaPYR丨蛋白不存在信号肽及切割位点,不属于分泌蛋白(
1?>?pr*dlot*d?phosphorgl?tiort?sit會丨?in?S*qu*no*??_?Thr#onin*??*?Tyrosine????4*?Threshold????cl-?.??〇>??4???0??a??|??M?i??L?I?I?I??0?i??1??w??1??CL??0?-?-?I?-?"?'?i?i??0?50?100?1S0?200??S*qu*nc*?position??图3-4小麦TaPYRl蛋白磷酸化修饰情况??Fig.?3-4?Wheat?Tal^YRl?protein?phosphorylation?modification??经在线软件ProtScale预测TaPYRl蛋白除了为疏水蛋白(图3-5)。??ProtScale?output?for?user_sequence??'?Hphob.?/?Kyte?&?Doolittle?-??__??;25?!??h.?.?.?...T....I.?.....I....?.....丨…??50?100?150?200??Position??Using?the?scale?Hphob.?I?Kyte?&?Doolittle?the?individual?values?for?the?20?amino?adds?are??AU.?1?600?-4?5(K>?Ao..?-3?500?A.sp?-<S.?500?Cyc?2?<:?00?Glr.?-3.?Kfti??Olu?-3.500?C-ly?-0.400?His?-3.200?lie.?4?500?
【参考文献】:
期刊论文
[1]Long-distance ABA transport can mediate distal tissue responses by affecting local ABA concentrations[J]. Wenrao Li,Carlos de Ollas,Ian C Dodd. Journal of Integrative Plant Biology. 2018(01)
[2]植物干旱胁迫信号转导及其调控机制研究进展[J]. 王丽,刘洋,李德全. 生物技术通报. 2012(10)
[3]Molecular Characterization and Expression Analysis of TaZFP15, a C2H2-Type Zinc Finger Transcription Factor Gene in Wheat (Triticum aestivum L.)[J]. SUN Zhao-hua1, DING Chang-huan1, LI Xiao-juan1 and XIAO Kai21 College of Life Science, Agricultural University of Hebei, Baoding 071001, P.R.China 2 College of Agronomy, Agricultural University of Hebei, Baoding 071001, P.R.China. Journal of Integrative Agriculture. 2012(01)
[4]小麦旗叶叶绿素含量及荧光动力学参数与产量的灰色关联度分析[J]. 王正航,武仙山,昌小平,李润植,景蕊莲. 作物学报. 2010(02)
[5]植物蛋白磷酸酶2C(PP2C)及其在信号转导中的作用[J]. 胡晓丽,李德全. 植物生理学通讯. 2007(03)
[6]气候变化对我国小麦产量的影响[J]. 居辉,熊伟,许吟隆,林而达. 作物学报. 2005(10)
[7]土壤干旱对冬小麦生理特性和干物质积累的影响[J]. 许振柱,李长荣,陈平,于振文,余松烈. 干旱地区农业研究. 2000(01)
本文编号:3417247
【文章来源】:河北农业大学河北省
【文章页数】:76 页
【学位级别】:硕士
【部分图文】:
图3-丨小麦7b/>y/?/基因氨基酸?
?河北农业大学硕士学位(毕业)论文???经TMHMM分析该蛋白没有跨膜域(图3-2)。??#?TOBSEQUEJKE?Lsnrth:?840??it?VEBSEQOERCE?Number?of?predicted?TMHs:?0??U?WEBSEQUENCE?Exp?number?of?AAs?in?THHs:?0.0791499999999999998??S?WEBSEQUEICE?Exp?number,?first?60?AAs:?0.02045??tt?WEBSEQUENCE?Total?prob?of?N-in:?0.?00279??WEBSEQUEHCE?TMHMH2.0?outside?1?840??TMHMM?posterior?probabilities?for?WEBSEQUENCE??1.2??.?.?.?.?.?.?.?.——??1????-....???—??0.8?■??>*??|?06?.??0.4??0.2?■??0??1?'?1?1?1?1?1?????0?100?200?300?400?500?600?700?800??transmembrane???inside??outside????图3-2小麦TaPYRl蛋白跨膜域分析结果??Fig.?3-2?Results?of?analysis?of?wheat?TaPYRl?protein?transmembrane?domain??利用SignaIP-4.1软件预测TaPYR丨蛋白不存在信号肽及切割位点,不属于分泌蛋白(
1?>?pr*dlot*d?phosphorgl?tiort?sit會丨?in?S*qu*no*??_?Thr#onin*??*?Tyrosine????4*?Threshold????cl-?.??〇>??4???0??a??|??M?i??L?I?I?I??0?i??1??w??1??CL??0?-?-?I?-?"?'?i?i??0?50?100?1S0?200??S*qu*nc*?position??图3-4小麦TaPYRl蛋白磷酸化修饰情况??Fig.?3-4?Wheat?Tal^YRl?protein?phosphorylation?modification??经在线软件ProtScale预测TaPYRl蛋白除了为疏水蛋白(图3-5)。??ProtScale?output?for?user_sequence??'?Hphob.?/?Kyte?&?Doolittle?-??__??;25?!??h.?.?.?...T....I.?.....I....?.....丨…??50?100?150?200??Position??Using?the?scale?Hphob.?I?Kyte?&?Doolittle?the?individual?values?for?the?20?amino?adds?are??AU.?1?600?-4?5(K>?Ao..?-3?500?A.sp?-<S.?500?Cyc?2?<:?00?Glr.?-3.?Kfti??Olu?-3.500?C-ly?-0.400?His?-3.200?lie.?4?500?
【参考文献】:
期刊论文
[1]Long-distance ABA transport can mediate distal tissue responses by affecting local ABA concentrations[J]. Wenrao Li,Carlos de Ollas,Ian C Dodd. Journal of Integrative Plant Biology. 2018(01)
[2]植物干旱胁迫信号转导及其调控机制研究进展[J]. 王丽,刘洋,李德全. 生物技术通报. 2012(10)
[3]Molecular Characterization and Expression Analysis of TaZFP15, a C2H2-Type Zinc Finger Transcription Factor Gene in Wheat (Triticum aestivum L.)[J]. SUN Zhao-hua1, DING Chang-huan1, LI Xiao-juan1 and XIAO Kai21 College of Life Science, Agricultural University of Hebei, Baoding 071001, P.R.China 2 College of Agronomy, Agricultural University of Hebei, Baoding 071001, P.R.China. Journal of Integrative Agriculture. 2012(01)
[4]小麦旗叶叶绿素含量及荧光动力学参数与产量的灰色关联度分析[J]. 王正航,武仙山,昌小平,李润植,景蕊莲. 作物学报. 2010(02)
[5]植物蛋白磷酸酶2C(PP2C)及其在信号转导中的作用[J]. 胡晓丽,李德全. 植物生理学通讯. 2007(03)
[6]气候变化对我国小麦产量的影响[J]. 居辉,熊伟,许吟隆,林而达. 作物学报. 2005(10)
[7]土壤干旱对冬小麦生理特性和干物质积累的影响[J]. 许振柱,李长荣,陈平,于振文,余松烈. 干旱地区农业研究. 2000(01)
本文编号:3417247
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