Structure and character analysis of cotton response regulator genes family reveals that GhRR7 responses to draught stress

文献类型： 外文期刊

第一作者： Zhao, Lanjie

作者： Zhao, Lanjie;Guo, Lixue;Lu, Xuke;Malik, Waqar Afzal;Zhang, Yuexin;Wang, Jing;Chen, Xiugui;Wang, Shuai;Wang, Junjuan;Wang, Delong;Ye, Wuwei

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关键词： Cotton; Response regulators; Abiotic stresses; TCSs

期刊名称：BIOLOGICAL RESEARCH （ 影响因子：7.634； 五年影响因子：6.7 ）

ISSN： 0716-9760

年卷期： 2022 年 55 卷 1 期

页码：

收录情况： SCI

摘要： Background Cytokinin signal transduction is mediated by a two-component system (TCS). Two-component systems are utilized in plant responses to hormones as well as to biotic and abiotic environmental stimuli. In plants, response regulatory genes (RRs) are one of the main members of the two-component system (TCS). Method From the aspects of gene structure, evolution mode, expression type, regulatory network and gene function, the evolution process and role of RR genes in the evolution of the cotton genome were analyzed. Result A total of 284 RR genes in four cotton species were identified. Including 1049 orthologous/paralogous gene pairs were identified, most of which were whole genome duplication (WGD). The RR genes promoter elements contain phytohormone responses and abiotic or biotic stress-related cis-elements. Expression analysis showed that RR genes family may be negatively regulate and involved in salt stress and drought stress in plants. Protein regulatory network analysis showed that RR family proteins are involved in regulating the DNA-binding transcription factor activity (COG5641) pathway and HP kinase pathways. VIGS analysis showed that the GhRR7 gene may be in the same regulatory pathway as GhAHP5 and GhPHYB, ultimately negatively regulating cotton drought stress by regulating POD, SOD, CAT, H2O2 and other reactive oxygen removal systems. Conclusion This study is the first to gain insight into RR gene members in cotton. Our research lays the foundation for discovering the genes related to drought and salt tolerance and creating new cotton germplasm materials for drought and salt tolerance.

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