水稻抗性蛋白OsRRK1抗褐飞虱机理分析

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  • 1 湖南人文科技学院湖南省农田杂草防控技术与应用协同创新中心/农药无害化应用省高校重点实验室, 湖南娄底 417000
    2 武汉大学生命科学学院杂交水稻国家重点实验室, 武汉 430072

收稿日期: 2020-04-25

  修回日期: 2020-05-18

  网络出版日期: 2020-11-10

基金资助

湖南省自然科学基金青年项目(2019JJ50281);湖南省教育厅优秀青年项目(18B455);杂交水稻国家重点实验室(武汉大学)开放课题基金资助项目(KF201901);娄底市应用技术与开发项目(33319013);湖南省应用特色学科(植物保护)资助项目;湖南人文科技学院卓越人才培养计划资助项目(校教通 2017 第 74 号);湖南省高等学校科技创新团队(201937924)

Mechanism Analysis of Rice Resistance Protein OsRRK1 Againstthe Brown Planthopper

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  • 1 Hunan Provincial Collaborative Innovation Center for Field Weeds Control/ Key Laboratory of Harmless Application of Pesticide in Hunan Higher Education, Hunan University of Humanities, Science and Technology, Loudi417000,China
    2 College of Life Sciences, Wuhan University /National Key Laboratory of Hybrid Rice,Wuhan 430072,China
*Corresponding author, E-mail: hnldjcz@sina.com

Received date: 2020-04-25

  Revised date: 2020-05-18

  Online published: 2020-11-10

摘要

目的 OsRRK1(Rop-interacting receptor-like kinase 1)蛋白是水稻中第一个被研究的类胞质受体激酶RLCKⅥ家族蛋白。在调控水稻叶片的卷曲和对褐飞虱的防御中都起着重要作用,但是其调控机理尚不清楚。本研究试图进一步探究OsRRK1基因抗褐飞虱的机理。方法 利用酵母双杂交的方法分析OsRRK1蛋白与OsLecRK(lectin-like receptor kinase)、OsLecRK1、OsLecRK2、OsLecRK3的互作关系,OsLecRK是抗褐飞虱基因BPH15区间的候选基因,是水稻先天免疫系统中一个重要成员,既参与水稻先天免疫反应,包括对褐飞虱、白叶枯病和稻瘟病的抗性,又参与水稻的发育过程。OsLecRK1OsLecRK2OsLecRK3的基因簇组成抗褐飞虱基因BPH3,含BPH3基因的水稻具有广谱、持久的抗虫性。同时利用DNAMAN软件分析OsLecRK蛋白与OsLecRK1、OsLecRK2、OsLecRK3的同源性。结果 DNAMAN的分析结果显示OsLecRK与OsLecRK1、OsLecRK2、OsLecRK3的同源性都很高,蛋白一致性在50%以上;酵母双杂交结果显示OsRRK1与OsLecRK、OsLecRK2和OsLecRK3互作。结论 OsRRK1通过与抗褐飞虱基因BPH15BPH3候选基因的相互作用参与水稻抗褐飞虱过程。

本文引用格式

马银花, 李萍芳, 董文静, 易松望, 杨芳, 杜波, 金晨钟 . 水稻抗性蛋白OsRRK1抗褐飞虱机理分析[J]. 中国水稻科学, 2020 , 34(6) : 512 -519 . DOI: 10.16819/j.1001-7216.2020.0406

Abstract

【Objective】OsRRK1 (Rop-interacting receptor-like kinase 1) protein in rice is the first RLCK VI family protein in rice that has been studied.It plays an important role inregulating the curling of rice leaves and the defense against brown planthoppers. However, the mechanism of its regulation of resistance to the brown planthopperremains unclear. Weattempt to further explore the mechanism of OsRRK1gene resistance to the brown planthoppers.【Method】The interaction between OsRRK1 protein and OsLecRK (lectin-like receptor kinase), OsLecRK1, OsLecRK2 and OsLecRK3 was analyzed by yeast two-hybrid method.OsLecRK is a candidate gene forBPH15 range of anti-brown planthopper, and is an important member of rice innate immune system. OsLecRK is involved innot only rice innate immune response, including resistance to brown planthoppers, white leaf blight and rice blast, but alsothe development of rice. The gene clusters of OsLecRK1, OsLecRK2 and OsLecRK3 constitute the anti-brown planthopper gene BPH3. Rice containing the BPH3 gene has a broad spectrum and lasting insect resistance. Meanwhile, DNAMAN software was used to analyze the homology of OsLecRK with OsLecRK1, OsLecRK2 and OsLecRK3.【Result】The analysis results of DNAMAN showed that OsLecRK has high homology with OsLecRK1, OsLecRK2 and OsLecRK3, and the proteinsshared more than 50% identity.The results of yeast two-hybrid analysis showed that OsRRK1 interacted with OsLecRK, OsLecRK2 and OsLecRK3.【Conclusion】OsRRK1 participates in the process of resistance to the brownplanthoppersthroughinteracting with BPH15 and BPH3 candidate genes.

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