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作物学报 ›› 2017, Vol. 43 ›› Issue (02): 218-225.doi: 10.3724/SP.J.1006.2017.00218

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

花生AhHDA1互作蛋白AhGLK的筛选及特性分析

李媚娟,苏良辰,刘帅,李晓云*,李玲*   

  1. 广东省植物发育生物工程重点实验室,华南师范大学生命科学学院,广东广州 510631
  • 收稿日期:2016-04-02 修回日期:2016-09-18 出版日期:2017-02-12 网络出版日期:2016-09-28
  • 通讯作者: 李晓云, E-mail: xiaoyun5893@qq.com, Tel: 020-85211378; 李玲, E-mail: liling502@126.com, Tel: 020-85211378
  • 基金资助:

    本研究由国家自然科学基金项目(31471422, 31671600)资助。

Screening of AhHDA1 Interacting-Protein AhGLK and Characterization in Peanut (Arachis hypogaea L.)

LI Mei-Juan,SU Liang-Chen,LIU Shuai,LI Xiao-Yun*,LI Ling*   

  1. Guangdong Key Laboratory of Biotechnology for Plant Development, South China Normal University, Guangzhou, 510631, China
  • Received:2016-04-02 Revised:2016-09-18 Published:2017-02-12 Published online:2016-09-28
  • Contact: 李晓云, E-mail: xiaoyun5893@qq.com, Tel: 020-85211378; 李玲, E-mail: liling502@126.com, Tel: 020-85211378
  • Supported by:

    This study was supported by the National Natural Science Foundation of China (31471422, 31671600).

摘要:

通过酵母双杂交系统,以花生组蛋白去乙酰化酶AhHDA1为诱饵, 对花生cDNA文库筛选并分析互作蛋白的生物学特性。结果获得一个AhHDA1互作蛋白Arachis hypogaea L. Golden 2-like (AhGLK);体外荧光双分子试验证实,AhHDA1与AhGLK蛋白存在相互作用;利用生物信息学软件分析表明,AhGLK含有MYB保守域,其氨基酸序列与大豆(Glyine soja) GsGLK、拟南芥(Arabidopsis thaliana) AtGLK分别具有较高同源性;AhGLK定位在细胞核中并具有转录因子活性,主要在花生的叶片中表达;在30% PEG条件下,AhGLK表达下调。

关键词: 花生, AhHDA1, 蛋白互作, AhGLK, 转录活性

Abstract:

With AhHDA1 as bait, the peanut (Arachis hypogaea L.) cDNA library was screened and characteristics of the interacting-protein was analysed, getting a protein of Golden 2-like (AhGLK) interacted with AhHDA1 which was proved by yeast two-hybrid experiments, and further confirmed by bimolecular fluorescence complementation (BiFC) assay. Bioinformatics software analysis indicated that AhGLK contained a MYB conserved domain having high homology with GsGLK (Glyine soja) and AtGLK (Arabidopsis thaliana). AhGLK was found to be located in nucleus and testified as a transcriptional activation factor. Tissue specific analysis showed that AhGLK accumulated in leaves mainly, and the expression was down-regulated by 30% PEG treatment. The results lay a foundation for further study on AhGLK, which might be involved in drought stress resistance of peanut.

Key words: Peanut, AhHDA1, Interacting protein, AhGLK, Transcriptional activity

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