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The coiled-coil protein gene WPRb confers recessive resistance to Cucumber green mottle mosaic virus

文献类型： 外文期刊

作者： Cai, Lingmin 1 ; Liu, Jie 1 ; Wang, Shuchang 3 ; Gong, Zihui 1 ; Yang, Siyu 1 ; Xu, Fengyuan 1 ; Hu, Zhongyuan 1 ; Zhang, Mingfang 1 ; Yang, Jinghua 1 ;

作者机构： 1.Zhejiang Univ, Inst Vegetable Sci, Lab Germplasm Innovat & Mol Breeding, Hangzhou 310058, Peoples R China

2.Ningbo Weimeng Seed Co Ltd, Ningbo 315000, Peoples R China

3.Chinese Acad Trop Agr Sci, Haikou 571101, Hainan, Peoples R China

4.Zhejiang Univ, Hainan Inst, Yazhou Dist 572025, Sanya, Peoples R China

5.Minist Agr & Rural Affairs, Key Lab Hort Plant Growth & Dev, Hangzhou 310058, Peoples R China

期刊名称：PLANT PHYSIOLOGY （ 影响因子：8.005； 五年影响因子：9.115 ）

ISSN： 0032-0889

年卷期：

页码：

收录情况： SCI

摘要： The WEB1/PMI2-related protein family gene WPRb is recessively associated with CGMMV resistance in watermelon, facilitating virus intercellular movement by affecting the permeability of plasmodesmata. Cucumber green mottle mosaic virus (CGMMV) is one of the major global quarantine viruses and causes severe symptoms in Cucurbit crops, particularly with regard to fruit decay. However, the genetic mechanisms that control plant resistance to CGMMV have yet to be elucidated. Here, we found that WPRb, a weak chloroplast movement under blue light 1 and plastid movement impaired 2-related protein family gene, is recessively associated with CGMMV resistance in watermelon (Citrullus lanatus). We developed a reproducible marker based on a single non-synonymous substitution (G1282A) in WPRb, which can be used for marker-assisted selection for CGMMV resistance in watermelon. Editing of WPRb conferred greater tolerance to CGMMV. We found WPRb targets to the plasmodesmata (PD) and biochemically interacts with the CGMMV movement protein, facilitating viral intercellular movement by affecting the permeability of PD. Our findings enable us to genetically control CGMMV resistance in planta by using precise genome editing techniques targeted to WPRb.

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