生物技术通报 ›› 2017, Vol. 33 ›› Issue (5): 108-116.doi: 10.13560/j.cnki.biotech.bull.1985.2017.05.016

• 研究报告 • 上一篇    下一篇

蒙古沙冬青AmMYB4-like基因的克隆与表达分析

肖自华,高飞,孙会改,周宜君   

  1. 中央民族大学生命与环境科学学院,北京 100081
  • 收稿日期:2016-10-08 出版日期:2017-05-25 发布日期:2017-05-19
  • 作者简介:肖自华,男,硕士,研究方向:植物抗逆分子生物学;E-mail:xiaozihua1991@163.com
  • 基金资助:
    国家自然科学基金项目(31370356,31670335),建设世界一流大学(学科)和特色发展引导专项资金(YDZXXK201619,2015MDTD08C)

Cloning and Expression Analysis of AmMYB4-like in Ammopiptanthus mongolicus

XIAO Zi-hua GAO Fei SUN Hui-gai ZHOU Yi-jun   

  1. College of Life & Environmental Sciences,Minzu University of China,Beijing 100081
  • Received:2016-10-08 Published:2017-05-25 Online:2017-05-19

摘要: 基于已有研究工作基础,从蒙古沙冬青[Ammopiptanthus mongolicus(Maxim)Cheng. f]中分离到1个编码MYB类转录因子基因,命名为AmMYB4-like。该序列长度为1 145 bp,含有一个由960 bp 组成的开放阅读框,编码319个氨基酸,具有R2和R3保守结构域,属于R2R3-MYB转录因子。荧光定量PCR分析结果表明,AmMYB4-like 在叶片中参与低温和干旱胁迫应答,在根中主要参与干旱胁迫应答。构建了pPZP212-AmMYB4-like 植物表达载体,旨为进一步研究AmMYB4-like 的功能奠定基础。

关键词: 蒙古沙冬青, AmMYB4-like, 基因克隆, 表达分析, 植物表达载体构建

Abstract: Based on our previous work,a gene encoding MYB transcription factor was cloned from Ammopiptanthus mongolicus,and it was designated as AmMYB4-like. The full length of the AmMYB4-like cDNA was 1,145 bp,including a 960 bp opening reading frame(ORF)which encoded a 319-amino acid peptide. AmMYB4-like contained R2 and R3 conserved domains and belonged to the R2R3-MYB subfamily. Quantitative real-time PCR(qRT-PCR)analyses revealed that AmMYB4-like was up-regulated in leaves under low temperature and drought stresses,but it was mainly induced by drought stress in roots. Plant expression vector pPZP212- AmMYB4-like was constructed for further research of AmMYB4-like.

Key words: Ammopiptanthus mongolicus, AmMYB4-lik, gene cloning, expression analysis, construction of plant expression vector