Identification and Functional Exploration of BraGASA Genes Reveal Their Potential Roles in Drought Stress Tolerance and Sexual Reproduction in Brassica rapa L. ssp. pekinensis
文献类型： 外文期刊
作者： Zhao, Yanting 1 ; Sun, Xinjie 2 ; Zhou, Jingyuan 3 ; Liu, Lixuan 4 ; Huang, Li 2 ; Hu, Qizan 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China
2.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 310058, Peoples R China
3.Zhejiang Univ, Qiushi Coll, Ziyun & Bifeng Community, Hangzhou 310058, Peoples R China
4.Zhejiang Univ, Sch Int Studies, Hangzhou 310058, Peoples R China
关键词： Brassica rapa; GASA; gene family; bioinformatics; expression profile
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： 2024 年 25 卷 17 期
页码：
收录情况： SCI
摘要： Gibberellic acid-stimulated Arabidopsis sequences (GASAs) are a subset of the gibberellin (GA)-regulated gene family and play crucial roles in various physiological processes. However, the GASA genes in Brassica rapa have not yet been documented. In this study, we identified and characterized 16 GASA genes in Chinese cabbage (Brassica rapa L. ssp. pekinensis). Analysis of the conserved motifs revealed significant conservation within the activation segment of BraGASA genes. This gene family contains numerous promoter elements associated with abiotic stress tolerance, including those for abscisic acid (ABA) and methyl jasmonate (MeJA). Expression profiling revealed the presence of these genes in various tissues, including roots, stems, leaves, flowers, siliques, and callus tissues. When plants were exposed to drought stress, the expression of BraGASA3 decreased notably in drought-sensitive genotypes compared to their wild-type counterparts, highlighting the potentially crucial role of BraGASA3 in drought stress. Additionally, BraGASAs exhibited various functions in sexual reproduction dynamics. The findings contribute to the understanding of the function of BraGASAs and provide valuable insights for further exploration of the GASA gene function of the BraGASA gene in Chinese cabbage.
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