Genome-wide identification and function characterization of GATA transcription factors during development and in response to abiotic stresses and hormone treatments in pepper

文献类型： 外文期刊

第一作者： Yu, Chuying

作者： Yu, Chuying;Li, Ning;Yin, Yanxu;Wang, Fei;Gao, Shenghua;Jiao, Chunhai;Yao, Minghua;Yu, Chuying

作者机构：

关键词： Capsicum annuum L; GATA gene family; Genome-wide analysis; Abiotic stresses; Hormone treatments

期刊名称：JOURNAL OF APPLIED GENETICS （ 影响因子：3.24； 五年影响因子：2.756 ）

ISSN： 1234-1983

年卷期： 2021 年 62 卷 2 期

页码：

收录情况： SCI

摘要： Pepper (Capsicum annuum L.) is an economically important vegetable crop whose production and quality are severely reduced under adverse environmental stress conditions. The GATA transcription factors belonging to type IV zinc-finger proteins, play a significant role in regulating light morphogenesis, nitrate assimilation, and organ development in plants. However, the functional characteristics of GATA gene family during development and in response to environmental stresses have not yet been investigated in pepper. In this study, a total of 28 pepper GATA (CaGATA) genes were identified. To gain an overview of the CaGATAs, we analyzed their chromosomal distribution, gene structure, conservative domains, cis-elements, phylogeny, and evolutionary relationship. We divided 28 CaGATAs into four groups distributed on 10 chromosomes, and identified 7 paralogs in CaGATA family of pepper and 35 orthologous gene pairs between CaGATAs and Arabidopsis GATAs (AtGATAs). The results of promoter cis-element analysis and the quantitative real-time PCR (qRT-PCR) analysis revealed that CaGATA genes were involved in regulating the plant growth and development and the responses to various abiotic stresses and hormone treatments in pepper. Tissue-specific expression analysis showed that most CaGATA genes were preferentially expressed in flower buds, flowers, and leaves. Several CaGATA genes, especially CaGATA14, were significantly regulated under multiple abiotic stresses, and CaGATA21 and CaGATA27 were highly responsive to phytohormone treatments. Taken together, our results lay a foundation for the biological function analysis of GATA gene family in pepper.

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