Systematic Analysis and Identification of Drought-Responsive Genes of the CAMTA Gene Family in Wheat (Triticum aestivum L.)
文献类型： 外文期刊
作者： Wang, Dezhou 1 ; Wu, Xian 3 ; Gao, Shiqin 1 ; Zhang, Shengquan 1 ; Wang, Weiwei 1 ; Fang, Zhaofeng 1 ; Liu, Shan 1 ; Wang, Xiaoyan 3 ; Zhao, Changping 1 ; Tang, Yimiao 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Hybrid Wheat, Beijing 100097, Peoples R China
2.Municipal Key Lab Mol Genet Hybrid Wheat, Beijing 100097, Peoples R China
3.Yangtze Univ, Agr Coll, Hubei Collaborat Innovat Ctr Grain Ind, Jingzhou 434023, Peoples R China
关键词： abiotic stress; drought; CAMTA gene family; wheat
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）
ISSN：
年卷期： 2022 年 23 卷 9 期
页码：
收录情况： SCI
摘要： The calmodulin-binding transcription activator (CAMTA) is a Ca2+/CaM-mediated transcription factor (TF) that modulates plant stress responses and development. Although the investigations of CAMTAs in various organisms revealed a broad range of functions from sensory mechanisms to physiological activities in crops, little is known about the CAMTA family in wheat (Triticum aestivum L.). Here, we systematically analyzed phylogeny, gene expansion, conserved motifs, gene structure, cis-elements, chromosomal localization, and expression patterns of CAMTA genes in wheat. We described and confirmed, via molecular evolution and functional verification analyses, two new members of the family, TaCAMTA5-B.1 and TaCAMTA5-B.2. In addition, we determined that the expression of most TaCAMTA genes responded to several abiotic stresses (drought, salt, heat, and cold) and ABA during the seedling stage, but it was mainly induced by drought stress. Our study provides considerable information about the changes in gene expression in wheat under stress, notably that drought stress-related gene expression in TaCAMTA1b-B.1 transgenic lines was significantly upregulated under drought stress. In addition to providing a comprehensive view of CAMTA genes in wheat, our results indicate that TaCAMTA1b-B.1 has a potential role in the drought stress response induced by a water deficit at the seedling stage.
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