数字农科院2.0

Genome-Wide Identification and Expression Analysis Unveil the Involvement of the Cold Shock Protein (CSP) Gene Family in Cotton Hypothermia Stress

文献类型： 外文期刊

作者： Yejun Yang;Ting Zhou;Jianglin Xu;Yongqiang Wang;Yuanchun Pu;Yunfang Qu;Guoqing Sun

作者机构：

关键词： abiotic stress;cold acclimation;cold shock domain protein;cotton;expression analysis

期刊名称： Plants

ISSN： 2223-7747

年卷期： 2024 年 13 卷 5 期

页码：

收录情况： SCIE（2024版）

摘要： Cold shock proteins (CSPs) are DNA/RNA binding proteins with crucial regulatory roles in plant growth, development, and stress responses. In this study, we employed bioinformatics tools to identify and analyze the physicochemical properties, conserved domains, gene structure, phylogenetic relationships, cis-acting elements, subcellular localization, and expression patterns of the cotton CSP gene family. A total of 62 CSP proteins were identified across four cotton varieties (Gossypium arboreum, Gossypium raimondii, Gossypium barbadense, Gossypium hirsutum) and five plant varieties (Arabidopsis thaliana, Brassica chinensis, Camellia sinensis, Triticum aestivum, and Oryza sativa). Phylogenetic analysis categorized cotton CSP proteins into three evolutionary branches, revealing similar gene structures and motif distributions within each branch. Analysis of gene structural domains highlighted the conserved CSD and CCHC domains across all cotton CSP families. Subcellular localization predictions indicated predominant nuclear localization for CSPs. Examination of cis-elements in gene promoters revealed a variety of elements responsive to growth, development, light response, hormones, and abiotic stresses, suggesting the potential regulation of the cotton CSP family by different hormones and their involvement in diverse stress responses. RT-qPCR results suggested that GhCSP.A1, GhCSP.A2, GhCSP.A3, and GhCSP.A7 may play roles in cotton’s response to low-temperature stress. In conclusion, our findings underscore the significant role of the CSP gene family in cotton’s response to low-temperature stress, providing a foundational basis for further investigations into the functional aspects and molecular mechanisms of cotton’s response to low temperatures.

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