雷公藤AP2/ERF转录因子基因的克隆与分析
CSTR:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金(31272110);


Cloning and Expression Analysis of Two AP2/ERF Transcription Factors in Tripterygium wilfordii Hook.f.
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    该研究以雷公藤发状根为材料,根据雷公藤根转录组数据设计引物,采用RTPCR方法克隆得到2个雷公藤AP2/ERF转录因子,分别命名为TwAP2/ERF1基因(GenBank登录号:GAVZ01042389.1)和TwAP2/ERF2基因(GenBank登录号:GAVZ01016765.1)。TwAP2/ERF1基因含有一个525 bp开放阅读框(ORF),编码186个氨基酸;TwAP2/ERF2基因的ORF为789 bp,编码262个氨基酸;2个基因编码的蛋白质均为亲水性蛋白质。系统进化分析表明,TwAP2/ERF1与油桐(Vernicia fordii)AP2/ERF(APQ47444.1)和木油桐(Vernicia montana)AP2/ERF(APQ47365.1)相似性较高,TwAP2/ERF2与毛果杨(Populus trichocarpa)AP2/ERF(XP_002304640.1)和樱桃(Prunus pseudocerasus)AP2/ERF(ALD84477.1)相似性较高。雷公藤发状根经MeJA诱导后,TwAP2/ERF1基因的相对表达量明显提高,并于处理后9 h达到最高值,为对照表达量的16.77倍;而MeJA处理对TwAP2/ERF2基因的表达表现出抑制作用,但于处理后48 h相对表达量有所提高。研究表明,雷公藤TwAP2/ERF1转录因子响应MeJA早期诱导正调控,推测其可能参与调控雷公藤植物次生代谢产物的生物合成,该研究结果为阐明雷公藤次生代谢物质的生物合成调控与利用现代生物技术提高雷公藤植物细胞中次生代谢物质的含量奠定了基础。

    Abstract:

    In this paper, the hairy roots of T. wilfordii were used as the experimental material. Primers were designed based on the transcriptomic data of T. wilfordii roots. We cloned the two AP2/ERF transcription factors from T. wilfordii hairy roots using reverse transcription polymerase chain reaction (RTPCR), separately named TwAP2/ERF1(GenBank accession GAVZ01042389.1) and TwAP2/ERF2(GenBank accession GAVZ01016765.1). The TwAP2/ERF1 gene contained 525 bp open reading frame (ORF) which encoding 186 amino acids. The ORF of the TwAP2/ERF2 gene was 789 bp, which encoding 262 amino acids. Both genes encode proteins that were hydrophilic proteins. The phylogenetic analysis showed that TwAP2/ERF1 was highly similar with Vernicia fordii AP2/ERF (APQ47444.1) and Vernicia montana AP2/ERF(APQ47365.1). TwAP2/ERF2 was closely related to Populus trichocarpa AP2/ERF (XP_002304640.1) and Prunus pseudocerasus AP2/ERF(ALD84477.1). After methyl jasmonate (MeJA) treatment in T. wilfordii hairy roots, the relative expression of TwAP2/ERF1 gene was significantly increased and reached the highest level at 9 h, which was 16.77 times than the control expression. In the early stage MeJA inhibited the expression of TwAP2/ERF2 gene, but after 48 h the relative expression level increased. These results showed that TwAP2/ERF1 response positively MeJA induction in early stage and probably involve the regulation of secondary metabolites biosynthesis in T. wilfordii. These will provide the basis for elucidating the regulation of secondary metabolites biosynthesis and for using biotechnology to enhance the content of secondary metabolites in T. wilfordii.

    参考文献
    相似文献
    引证文献
引用本文

祝传书,刘 艳,陈蒙蒙,等.雷公藤AP2/ERF转录因子基因的克隆与分析[J].西北植物学报,2018,38(8):1411-1418

复制
分享
相关视频

文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2018-09-20
  • 出版日期:
文章二维码