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Family-Wide Evaluation of Multiple C2 Domain and Transmembrane Region Protein in Gossypium hirsutum

文献类型： 外文期刊

作者： Hu, Qianqian 1 ; Zeng, Mengting 1 ; Wang, Miao 1 ; Huang, Xiaoyu 1 ; Li, Jiayi 2 ; Feng, Changhui 3 ; Xuan, Lijie 2 ; Liu 1 ;

作者机构： 1.Cent China Normal Univ, Sch Life Sci, Hubei Key Lab Genet Regulat & Integrat Biol, Wuhan, Peoples R China

2.Shanghai Jiao Tong Univ, Joint Ctr Single Cell Biol, Sch Agr & Biol, Shanghai, Peoples R China

3.Hubei Acad Agr Sci, Inst Cash Crops, Wuhan, Peoples R China

4.Xinjiang Normal Univ, Coll Life Sci, Xinjiang Key Lab Special Species Conservat & Regu, Urumqi, Peoples R China

关键词： cotton; main stem apex development; GhMCTP; gene expression; protein interaction; KNOX family protein

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.754； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Multiple C2 domain and transmembrane region proteins (MCTPs) are a group of evolutionarily conserved proteins and show emerging roles in mediating protein trafficking and signaling transduction. Although, several studies showed that MCTPs play important roles during plant growth and development, their biological functions in cotton remain largely unknown. Here, we identify and characterize 33 GhMCTP genes from upland cotton (Gossypium hirsutum) and reveal the diverse expression patterns of GhMCTPs in various tissues. We also find that GhMCTP7, GhMCTP12, and GhMCTP17 are highly expressed in the main stem apex, suggesting their possible roles in shoot development. Through analyzing different cotton species, we discover plant heights are closely related to the expression levels of GhMCTP7, GhMCTP12, and GhMCTP17. Furthermore, we silence the expression of GhMCTP genes using virus-induced gene silencing (VIGS) system in cotton and find that GhMCTP7, GhMCTP12, and GhMCTP17 play an essential role in shoot meristem development. GhMCTPs interact with GhKNAT1 and GhKNAT2 and regulate meristem development through integrating multiple signal pathways. Taken together, our results demonstrate functional redundancy of GhMCTPs in cotton shoot meristem development and provide a valuable resource to further study various functions of GhMCTPs in plant growth and development.

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