华北农学报 ›› 2020, Vol. 35 ›› Issue (1): 51-56. doi: 10.7668/hbnxb.20190812

所属专题: 玉米 抗旱节水 生物技术

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

玉米ERD基因的表达模式及ZmERD6基因的抗旱性分析

刘松涛, 曹雯梅, 郑贝贝, 赵威   

  1. 河南农业职业学院, 河南 中牟 451450
  • 收稿日期:2019-11-21 出版日期:2020-02-28
  • 作者简介:刘松涛(1971-),男,河南柘城人,副教授,硕士,主要从事农作物栽培与育种教学和科研工作。
  • 基金资助:
    河南省重大科技攻关项目(152102110144;192102110139);河南高等教育教学改革研究与实践项目(2017SJGLX573);河南农业职业学院科研团队项目(HNACKT2018-01)

Expression Pattern of ERD Genes in Maize and Drought Resistance Analysis of ZmERD6 Gene

LIU Songtao, CAO Wenmei, ZHENG Beibei, ZHAO Wei   

  1. Henan Vocational College of Agriculture, Zhongmu 451450, China
  • Received:2019-11-21 Published:2020-02-28

摘要: 为了进一步了解玉米ZmERD基因,基于旱胁迫转录组数据,筛选出5个ZmERD基因。将这些基因编码的蛋白质与拟南芥16个ERD蛋白进行进化分析发现, GRMZM2G181206GRMZM2G128641基因编码的蛋白质分别与AT4G02900AT1G32090基因编码的蛋白质同源性较高。时空表达分析发现, GRMZM2G109201GRMZM2G181206GRMZM2G12864基因属于组成型表达, GRMZM2G134192基因属于特异型表达,只在花药中高表达。属于ERD6亚家族的GRMZM2G109201基因在旱敏感型(B73)和抗旱型(郑58)自交系中均表达,且郑58中表达量显著高于B73;随着旱胁迫时间的延长, GRMZM2G109201基因在B73中表达量差异不显著,但在郑58中表达量升高幅度达到显著水平。亚细胞定位显示, GRMZM2G109201基因编码的ZmERD6蛋白定位于质膜。推测GRMZM2G109201基因参与旱胁迫,且被正向诱导。

关键词: 玉米, 早期脱水反应基因, 进化, 表达模式, 抗旱性, 亚细胞定位

Abstract: The early responsive to dehydration(ERD)gene is a kind of functional gene that can respond quickly when plants encounter water stress,and plays an important role in slowing the stress of plants suffering from water stress. This type of gene is excavated and new drought-resistant varieties can be cultivated through molecular-assisted breeding. Therefore,based on previous studies,in order to further understand the ZmERD genes,this study screened five ZmERD genes based on drought stress transcriptome data. The proteins encoded by these genes were analyzed with AtERD protein,and the proteins encoded by the GRMZM2G181206 and GRMZM2G128641 genes were found to have higher homology with the proteins encoded by AT4G02900 and the AT1G32090 protein,respectively. The spatiotemporal expression analysis revealed that the GRMZM2G109201,GRMZM2G181206 and GRMZM2G12864 genes were constitutively expressed,and the GRMZM2G134192 gene was a specific expression,which was significantly highly expressed only in anthers. The GRMZM2G109201 gene belonging to the ERD6 subfamily was expressed in both drought-sensitive(B73)and drought-resistant(Zheng 58)inbred lines,and the expression level in Zheng 58 was significantly higher than that in B73. With the prolongation of drought stress,the expression level of GRMZM2G109201 gene was not significantly different in B73, but the expression level in Zheng 58 increased significantly. Subcellular localization revealed that the ZmERD6 protein encoded by the GRMZM2G109201 gene was located in the plasma membrane. We speculated that the GRMZM2G109201 gene was involved in drought stress and was positively induced.

Key words: Maize, ERD gene, Evolution, Expression pattern, Drought resistance, Subcellular localization

中图分类号: 

引用本文

刘松涛, 曹雯梅, 郑贝贝, 赵威. 玉米ERD基因的表达模式及ZmERD6基因的抗旱性分析[J]. 华北农学报, 2020, 35(1): 51-56. doi: 10.7668/hbnxb.20190812.

LIU Songtao, CAO Wenmei, ZHENG Beibei, ZHAO Wei. Expression Pattern of ERD Genes in Maize and Drought Resistance Analysis of ZmERD6 Gene[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(1): 51-56. doi: 10.7668/hbnxb.20190812.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.20190812

               http://www.hbnxb.net/CN/Y2020/V35/I1/51