浙江农业学报 ›› 2019, Vol. 31 ›› Issue (9): 1399-1404.DOI: 10.3969/j.issn.1004-1524.2019.09.01

• 作物科学 • 上一篇    下一篇

一个植物原纤维蛋白基因的克隆及其表达特性分析

姜瑶瑶1,2, 李静2, 蔡年俊2, 陈剑平3,*, 张恒木2,*   

  1. 1.浙江农林大学 林业与生物技术学院,浙江 杭州 311300;
    2.浙江省农业科学院 病毒学与生物技术研究所,浙江 杭州310021;
    3.宁波大学 植物病毒学研究所,浙江 宁波 315211
  • 收稿日期:2019-04-25 出版日期:2019-09-25 发布日期:2019-10-11
  • 通讯作者: *陈剑平,E-mail: jpchen2001@126.com;张恒木,E-mail: zhhengmu@tsinghua.org.cn
  • 作者简介:姜瑶瑶(1994—),女,浙江江山人,硕士研究生,主要从事植物病理学研究。E-mail: 18868192310@163.com
  • 基金资助:
    浙江省自然科学基金(LQ14-C140003)

Cloning and expression analysis of a fibrillin gene in plant

JIANG Yaoyao1,2, LI Jing2, CAI Nianjun2, CHEN Jianping3,*, ZHANG Hengmu2,*   

  1. 1. College of Forestry and Biotechnology, Zhejiang A&F University, Lin'an 311300, China;
    2. Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;
    3. Institute of Plant Virology, Ningbo University, Ningbo 315211, China
  • Received:2019-04-25 Online:2019-09-25 Published:2019-10-11

摘要: 植物原纤维蛋白(fibrillin, FBN)作为一大类保守的蛋白,广泛分布于植物界,但其在本氏烟(Nicotiana benthamiana)中的生物学特性和功能迄今尚不清楚。为了分析其表达特性和功能,采用RT-PCR技术从本氏烟中扩增并克隆了1个FBN基因(NbFBN)。进化树分析显示,NbFBN和拟南芥FBN1aFBN1b的亲缘关系较近;同源分析表明,它与不同植物来源的FBN基因高度同源,其C-端部分尤为保守。定量分析发现,NbPAP在叶片和花中的表达水平较高,同时发现该基因受到干旱胁迫和激素ABA的诱导,表明该基因可能参与非生物逆境响应过程。

关键词: 植物原纤维蛋白, 同源性分析, 定量PCR, 非生物逆境

Abstract: Plant fibrillin (FBN), a large family of conserved proteins, is widely distributed in plant kingdom, but its biological properties and functions in Nicotiana benthamiana are still unclear. To analyze its expression and function, an FBN gene (NbFBN) was amplified and cloned from Nicotiana benthamiana by RT-PCR. Phylogenetic tree analysis showed that the gene was closely related to FBN1a and FBN1b in Arabidopsis thaliana. Homology analysis indicated that it was highly homologous to different FBN genes and its C-terminal part was particularly conserved in several kinds of plants. Quantitative analysis showed that NbFBN was highly expressed in leaves and flowers of Nicotiana benthamiana, and that the gene was found to be induced by drought stress and hormone ABA, indicating that the gene might be involved in response to the abiotic stresses.

Key words: plant fibrillin, homology analysis, quantitative PCR (qPCR), abiotic stresses

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