河南农业科学 ›› 2023, Vol. 52 ›› Issue (6): 22-33.DOI: 10.15933/j.cnki.1004-3268.2023.06.003

• 作物栽培·遗传育种 • 上一篇    下一篇

盐碱胁迫下不同倍性水稻4 种转录因子家族基因的表达模式分析

黄海,瞿小杰,刘金海,彭赞文
  

  1. (梧州学院,广西 梧州 543002)
  • 收稿日期:2023-03-02 出版日期:2023-06-15 发布日期:2023-07-10
  • 通讯作者: 彭赞文(1969-),男,广西藤县人,副研究员,主要从事农业资源与环境方面的科研工作。E-mail:13877497733@139.com
  • 作者简介:黄海(1970-),男,吉林集安人,研究员,博士,主要从事作物学方面的教学与科研工作。E-mail:915654829@qq.com
  • 基金资助:
    广西科技重大专项(桂科AA20302018-8)

Expression Patterns of Genes of Four Transcription Factor Families in Different Ploidy Rice under Salt⁃Alkali Stress

HUANG Hai,QU Xiaojie,LIU Jinhai,PENG Zanwen   

  1. (Wuzhou University,Wuzhou 543002,China)
  • Received:2023-03-02 Published:2023-06-15 Online:2023-07-10

摘要: 以二倍体水稻(Oryza sativa L.)桂育12及其同源四倍体水稻为试验材料,研究二倍体、四倍体水稻中bZIP(Basic leucine zippers)、MYB(V⁃myb avian myeloblastosis viral oncogene homolog)、AP2/ERF(APETALA2/ethylene response factor)、WRKY转录因子家族基因在盐碱胁迫条件下的表达模式变化,为解析不同倍性水稻的耐盐碱机制奠定基础。结果表明,不同倍性水稻中同一转录因子基因对盐碱胁迫的响应不同。在盐胁迫条件下,OsbZIP05、OsbZIP45、OsJAMYBOsDREB1A(Dehydration responsive element binding protein 1A)等基因在四倍体水稻中的诱导(抑制)程度高于二倍体水稻;OsbZIP49、OsbZIP61、CSA(Carbon starved anther)、OsWRKY5、OsDREB41OsAP211等基因在四倍体水稻中的表达趋势与二倍体水稻完全相反。在碱胁迫条件下,OsbZIP61、CSA、OsJAMYBOsWRKY70基因在四倍体水稻中的诱导(抑制)程度高于二倍体水稻;OsbZIP49、OsWRKY1、OsWRKY8、OsWRKY24、OsWRKY45、OsWRKY72、OsWRKY76、OsDREB1AOsEREBP2(Ethylene⁃responsive element binding protein 2)等基因在四倍体水稻中的表达趋势与二倍体水稻完全相反。综上,盐碱胁迫条件下同一转录因子基因在不同倍性水稻中的表达模式有较大的差异,并且碱胁迫引起四倍体水稻中转录因子基因的表达模式更加复杂。

关键词: 水稻, 盐碱胁迫, 染色体加倍, 四倍体, 转录因子, 表达模式

Abstract: With diploid rice(Oryza sativa L.) Guiyu 12 and its autotetraploid rice as experimental materials,the changes of expression patterns of bZIP(basic leucine zippers),MYB(V⁃myb avian myeloblastosis viral oncogene homolog),AP2/ERF(APETALA2/ethylene response factor)and WRKY transcription factor family genes in diploid and tetraploid rice under saline⁃alkaline stress were studied,so as to lay the foundation for analyzing the saline⁃alkaline tolerance mechanism of different ploidy rice.The results showed that the same transcription factor gene in different ploidy rice had different responses to saline⁃alkali stress. Under salt stress,the induction(inhibition) degree of OsbZIP05,OsbZIP45,OsJAMYB and OsDREB1A(dehydration responsive element binding protein 1A)genes in tetraploid rice was higher than that in diploid rice.The expression trends of OsbZIP49,OsbZIP61,CSA(carbon starved anther),OsWRKY5,OsDREB41 and OsAP211 genes in tetraploid rice were completely opposite to that in diploid rice. Under alkaline stress,the induction(inhibition)degree of OsbZIP61,CSA,OsJAMYB and OsWRKY70 genes in tetraploid rice was higher than that in diploid rice.The expression trends of OsbZIP49,OsWRKY1,OsWRKY8,OsWRKY24,OsWRKY45,OsWRKY72,OsWRKY76,OsDREB1A and OsEREBP2(ethylene⁃responsive element binding protein 2) genes in tetraploid rice were completely opposite to that in diploid rice.In summary,the expression patterns of the same transcription factor gene in different ploidy rice under saline⁃alkali stress were significantly different,and the expression patterns of transcription factor gene in tetraploid rice induced by alkali stress were more complex.

Key words: Rice, Salt?alkali stress, Chromosome doubling, Tetraploid, Transcription factor, 、Expression pattern

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