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中国农学通报 ›› 2021, Vol. 37 ›› Issue (29): 20-27.doi: 10.11924/j.issn.1000-6850.casb2020-0304

所属专题: 生物技术

• 生物科学 • 上一篇    下一篇

甘草生长素反应因子(ARF)基因家族的鉴定及表达分析

关思静1(), 高静1(), 徐蓉蓉1, 葛甜甜1, 王楠2, 颜永刚1, 张岗1, 陈莹1, 刘阿萍1, 程萌格1   

  1. 1陕西中医药大学药学院/陕西省秦岭中草药应用开发工程技术研究中心,陕西西安 712046
    2陕西中医药大学/陕西中药资源产业化省部共建协同创新中心,陕西咸阳 712083
  • 收稿日期:2020-07-30 修回日期:2020-10-19 出版日期:2021-10-15 发布日期:2021-10-29
  • 通讯作者: 高静
  • 作者简介:关思静,女,1995年出生,陕西安康人,硕士,研究方向:中药资源的开发与利用研究。通信地址:712083 陕西省咸阳市秦都区渭阳中路 陕西中医药大学协同创新中心,Tel:029-38035207,E-mail: gsj127810@163.com
  • 基金资助:
    国家自然科学基金项目“根际真菌提高甘草水分和磷利用率的生理机制研究”(31600320);陕西省社会发展科技攻关项目“甘草高产优质品种选育及其配套栽培技术研究”(2018SF-338);陕西中医药大学“秦药”品质评价及资源开发学科创新团队项目(2019-QN01)

Auxin Response Factor (ARF) Gene Family in Glycyrrhiza uralensis Fisch.: Identification and Expression Analysis

Guan Sijing1(), Gao Jing1(), Xu Rongrong1, Ge Tiantian1, Wang Nan2, Yan Yonggang1, Zhang Gang1, Chen Ying1, Liu Aping1, Cheng Mengge1   

  1. 1College of Pharmacy, Shaanxi University of Chinese Medicine/Shaanxi Qinling Chinese Herbal Medicine Application Development Engineering Technology Research Center, Xi’an Shaanxi 712046
    2Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, Shaanxi University of Chinese Medicine, Xianyang Shaanxi 712083
  • Received:2020-07-30 Revised:2020-10-19 Online:2021-10-15 Published:2021-10-29
  • Contact: Gao Jing

摘要:

本研究旨在鉴定甘草ARF基因家族并分析其在非生物胁迫下的表达模式。以乌拉尔甘草(Glycyrrhiza uralensis Fisch.)为研究对象,利用生物信息学方法对ARF基因家族进行鉴定,并对其蛋白质理化性质、保守结构域、基因结构、进化关系、顺式作用元件和表达模式分析。鉴定得到10个甘草ARF基因。其蛋白氨基酸序列长度在301~945 aa之间,分子量约为33.07~104.37kDa,等电点为5.93~8.50。亚细胞定位分析显示甘草ARF蛋白均位于细胞核。保守结构域分析显示GuARF蛋白大多包含B3、Auxin_resp和Aux/IAA结构域。基因结构发现外显子数量从6个到22个不等。在甘草ARF基因启动子区还存在5类不同的顺式调控元件。系统进化分析表明甘草ARF蛋白分为3类。转录组数据分析显示,10个GuARF基因在非生物胁迫下具有一定表达特异性。上述结果显示甘草ARF基因家族可能参与多种生物过程,这为进一步研究植物对非生物胁迫的生理和分子反应提供了有价值的信息。

关键词: 乌拉尔甘草, 生长素反应因子, 系统进化, 基因表达, 表达模式分析

Abstract:

The purpose of the study is to identify the auxin response factor (ARF) gene family in Glycyrrhiza uralensis Fisch. and analyze their expression patterns under abiotic stress. G. Uralensis Fisch. was taken as the object. We identified the ARF gene family by bioinformatics tools, and analyzed the physicochemical properties of proteins, conserved motifs, gene structure, evolutionary relationships, cis-elements and expression profiles. 10 ARF genes (GuARFs) were identified. The length of these ARF proteins ranges from 301 to 945 amino acids and the relative molecular weight varies from 33.07 to 104.37 kDa, with PIs in the range of 5.93 to 8.50. Subcellular localization assays shows that the GuARF proteins are located in the nucleus. The conserved domain analysis indicates that most of GuARF proteins contain B3, Auxin_resp and Aux/IAA domain. Gene structure analysis reveals that the exon number of GuARF genes ranges from 6 to 22. There are 5 different types of cis-elements in the promoter region of GuARF genes. Phylogenetic analysis reveals that the GuARF proteins are clustered into 3 groups. RNA-seq data show that the expression level of 10 GuARF genes is different under abiotic stresses. The results indicate that the GuARF gene family may involve in multiple biological processes, and the study could provide valuable information for further research on physiological and molecular response of plants to abiotic stresses.

Key words: Glycyrrhiza Uralensis Fisch., auxin response factor, phylogeny, gene expression, expression pattern analysis

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