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Isolation and characterization of the GbVIP1 gene and response to Verticillium wilt in cotton and tobacco

文献类型： 外文期刊

作者： Zhang Kai 1 ; Zhao Pei 1 ; Wang Hongmei 1 ; Zhao Yunlei 1 ; Chen Wei 1 ; Gong Haiyan 1 ; Sang Xiaohui 1 ; Cui Yanli 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biol, Anyang 455000, Henan, Peoples R China

关键词： Cotton; VIP1; Verticillium wilt

期刊名称：JOURNAL OF COTTON RESEARCH （ 影响因子：2.6； 五年影响因子：2.8 ）

ISSN： 2096-5044

年卷期： 2019 年 2 卷

页码：

收录情况： SCI

摘要： Background: Verticillium wilt is a serious soil-borne vascular disease that causes major losses to upland cotton (Gossypium hirutum L.) worldwidely every year. The protein VIP1 (VirE2 interaction protein 1), a bZIP transcription factor, is involved in plant response to many stress conditions, especially pathogenic bacteria. However, its roles in cotton response to Verticillium wilt are poorly understood. Results: The GbVIP1 gene was cloned from resistant sea-island cotton (G. barbadense) cv. Hai 7124. Expression of GbVIP1 was up-regulated by inoculation with Verticillium dahliae and exogenous treatment with ethylene. Results of virus-induced gene silencing suggested that silencing of GbVIP1 weakened cotton resistance to Verticillium wilt. The heterologous expression of GbVIP1 in tobacco showed enhanced resistance to Verticillium wilt. The PR1, PR1-like and HSP70 genes were up-regulated in GbVIP1 transgenic tobacco after Verticillium wilt infection. Conclusion: Our results suggested that GbVIP1 increased plant resistance to Verticillium wilt through up-regulating expressions of PR1, PR1-like, and HSP70. These results provide new approaches to improving resistance to Verticillium wilt in upland cotton and also have great potential for disease-resistance breeding of cotton.

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