Genome-wide Identification of the Upland Cotton (Gossypium hirsutum L.) B-BOX gene Family and its Expression After Drought Stress

文献类型： 外文期刊

第一作者： Sun, Fenglei

作者： Sun, Fenglei;Sun, Fenglei;Ma, Jun;Yang, Yanlong;Wang, Penglong

作者机构：

关键词： B-BOX gene; Upland cotton; Gene expression; Drought resistance; qRT-PCR

期刊名称：JOURNAL OF PLANT GROWTH REGULATION （ 影响因子：4.8； 五年影响因子：4.8 ）

ISSN： 0721-7595

年卷期： 2023 年

页码：

收录情况： SCI

摘要： The growth and development of cotton are seriously affected by drought stress, and transcription factors can regulate the growth, development and stress tolerance of plants. B-BOX (BBX) proteins are a class of zinc finger transcription factors that play key roles in plant development. However, the BBX gene has not been systematically analyzed in cotton. This study systematically identified and analyzed 127 upland cotton BBX (GhBBX) genes. The phylogenetic analysis divided GhBBX genes into five groups, and the structures of the GhBBX genes of each group were basically similar. Many cis-acting elements related to plant stress or the stress response were predicted and analyzed in the promoter of the GhBBX gene. Transcriptome data and qRT-PCR transcriptional analysis showed that the GhBBX gene was differentially expressed in plant materials subjected to drought stress. The expression levels of five BBX genes in the variety Xinluzhong 39 (drought resistance) were higher than those in the variety Xinluzao 26 (drought sensitive). This study provides a theoretical basis for further study of the BBX gene in upland cotton drought resistance research through the systematic analysis of upland cotton BBX gene, which is helpful to cultivate upland cotton with strong drought resistance.

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