Genome-wide analysis of the serine carboxypeptidase-like protein family reveals Ga09G1039 is involved in fiber elongation in cotton

文献类型： 外文期刊

第一作者： Fu, Guoyong

作者： Fu, Guoyong;Chen, Baojun;Pei, Xinxin;Wang, Xiaoyang;Wang, Xiao;Nazir, Mian Faisal;Wang, Jingjing;Zhang, Xiaomeng;Xing, Aishuang;Pan, Zhaoe;Peng, Zhen;He, Shoupu;Du, Xiongming;Fu, Guoyong;Lin, Zhongxu

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关键词： Cotton; Serine carboxypeptidase-like; Orthologous; Fiber elongation

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.5； 五年影响因子：6.4 ）

ISSN： 0981-9428

年卷期： 2023 年 201 卷

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收录情况： SCI

摘要： The Gossypium is a model genus for understanding polyploidy and the evolutionary pattern of inheritance. This study aimed to investigate the characteristics of SCPLs in different cotton species and their role in fiber devel-opment. A total of 891 genes from one typical monocot and ten dicot species were naturally divided into three classes based on phylogenetic analysis. The SCPL gene family in cotton has undergone intense purifying selection with some functional variation. Segmental duplication and whole genome duplication were shown to be the two main reasons for the increase in the number of genes during cotton evolution. The identification of Gh_SCPL genes exhibiting differential expression in particular tissues or response to environmental stimuli provides a new measure for the in-depth characterization of selected genes of importance. Ga09G1039 was involved in the developmental process of fibers and ovules, and it is significantly different from proteins from other cotton species in terms of phylogenetic, gene structure, conserved protein motifs and tertiary structure. Overexpression of Ga09G1039 significantly increased the length of stem trichomes. Ga09G1039 may be a serine carboxypep-tidase protein with hydrolase activity, according to functional region, prokaryotic expression, and western blotting analysis. The results provide a comprehensive overview of the genetic basis of SCPLs in Gossypium and further our knowledge in understanding the key aspects of SCPLs in cotton with their potential role in fiber development and stress resistance.

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