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Genome-Wide Identification and Functional Characterization of SKP1-like Gene Family Reveal Its Involvement in Response to Stress in Cotton

文献类型： 外文期刊

作者： Geng, Zhao 1 ; Liu, Jianguang 1 ; Zhao, Guiyuan 1 ; Geng, Xiangli 2 ; Liu, Xu 1 ; Liu, Xingyu 3 ; Zhang, Hanshuang 1 ; Wang, Yongqiang 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Cotton, Key Lab Cotton Biol & Genet Breeding Huanghuaihai, Minist Agr & Rural Affairs, Shijiazhuang 050000, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Grain & Oil Crops, Shijiazhuang 050000, Peoples R China

3.Hebei Univ Sci & Technol, Coll Food Sci & Biol, Shijiazhuang 051432, Peoples R China

关键词： SKP1-like; synteny and collinearity analyses; expression patterns

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 1 期

页码：

收录情况： SCI

摘要： SKP1 constitutes the Skp1-Cullin-F-box ubiquitin E3 ligase (SCF), which plays a role in plant growth and development and biotic and abiotic stress in ubiquitination. However, the response of the SKP1-like gene family to abiotic and biotic stresses in cotton has not been well characterized. In this study, a total of 72 SKP1-like genes with the conserved domain of SKP1 were identified in four Gossypium species. Synteny and collinearity analyses revealed that segmental duplication played a major role in the expansion of the cotton SKP1-like gene family. All SKP1-like proteins were classified into three different subfamilies via phylogenetic analysis. Furthermore, we focused on a comprehensive analysis of SKP1-like genes in G. hirsutum. The cis-acting elements in the promoter site of the GhSKP1-like genes predict their involvement in multiple hormonal and defense stress responses. The expression patterns results indicated that 16 GhSKP1-like genes were expressed in response to biotic or abiotic stresses. To further validate the role of the GhSKP1-like genes in salt stress, four GhSKP1-like genes were randomly selected for gene silencing via VIGS. The results showed that the silencing of GhSKP1-like_7A resulted in the inhibition of plant growth under salt stress, suggesting that GhSKP1-like_7A was involved in the response to salt stress. In addition, yeast two-hybrid results revealed that GhSKP1-like proteins have different abilities to interact with F-box proteins. These results provide valuable information for elucidating the evolutionary relationships of the SKP1-like gene family and aiding further studies on the function of SKP1-like genes in cotton.

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