Genome-wide identification and expression patterns analysis of theRPD3/HDA1gene family in cotton

文献类型： 外文期刊

第一作者： Zhang, Jingjing

作者： Zhang, Jingjing;Wu, Aimin;Wei, Hengling;Hao, Pengbo;Zhang, Qi;Tian, Miaomiao;Yang, Xu;Cheng, Shuaishuai;Fu, Xiaokang;Ma, Liang;Wang, Hantao;Yu, Shuxun

作者机构：

关键词： Gossypium; Histone deacetylases; Expression patterns; Abiotic stress; Early maturity

期刊名称：BMC GENOMICS （ 影响因子：3.969； 五年影响因子：4.478 ）

ISSN： 1471-2164

年卷期： 2020 年 21 卷 1 期

页码：

收录情况： SCI

摘要： Background Histone deacetylases (HDACs) catalyze histone deacetylation and suppress gene transcription during various cellular processes. Within the superfamily of HDACs,RPD3/HDA1-type HDACs are the most studied, and it is reported thatRPD3genes play crucial roles in plant growth and physiological processes. However, there is a lack of systematic research on theRPD3/HDA1gene family in cotton. Results In this study, genome-wide analysis identified 9, 9, 18, and 18RPD3genes inGossypium raimondii, G. arboreum,G. hirsutum, andG. barbadense, respectively. This gene family was divided into 4 subfamilies through phylogenetic analysis. The exon-intron structure and conserved motif analysis revealed high conservation in each branch of the cottonRPD3genes. Collinearity analysis indicated that segmental duplication was the primary driving force during the expansion of theRPD3gene family in cotton. There was at least one presumed cis-element related to plant hormones in the promoter regions of allGhRPD3genes, especially MeJA- and ABA-responsive elements, which have more members than other hormone-relevant elements. The expression patterns showed that mostGhRPD3genes had relatively high expression levels in floral organs and performed higher expression in early-maturity cotton compared with late-maturity cotton during flower bud differentiation. In addition, the expression ofGhRPD3genes could be significantly induced by one or more abiotic stresses as well as exogenous application of MeJA or ABA. Conclusions Our findings reveal thatGhRPD3genes may be involved in flower bud differentiation and resistance to abiotic stresses, which provides a basis for further functional verification ofGhRPD3genes in cotton development and a foundation for breeding better early-maturity cotton cultivars in the future.

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