The SnRK2 family in pepper (Capsicum annuumL.): genome-wide identification and expression analyses during fruit development and under abiotic stress
文献类型： 外文期刊
作者： Wu, Zhiming 1 ; Cheng, Jiaowen 2 ; Hu, Fang 2 ; Qin, Cheng 3 ; Xu, Xiaowan 4 ; Hu, Kailin 2 ;
作者机构： 1.Zhongkai Univ Agr & Engn, Coll Hort & Landscape Architecture, Guangzhou 510225, Guangdong, Peoples R China
2.South China Agr Univ, Coll Hort, Guangzhou 510640, Guangdong, Peoples R China
3.Zunyi Acad Agr Sci, Pepper Inst, Zunyi 563000, Guizhou, Peoples R China
4.Guangdong Acad Agr Sci, Inst Vegetable, Guangzhou 510642, Guangdong, Peoples R China
关键词： Pepper (Capsicum annuumL; ); SnRK2 family; Fruit development; Abiotic stress; Gene expression
期刊名称：GENES & GENOMICS （ 影响因子：1.839； 五年影响因子：1.329 ）
ISSN： 1976-9571
年卷期： 2020 年 42 卷 10 期
页码：
收录情况： SCI
摘要： Plant-specificSnRK2(sucrosenonfermenting-1-related proteinkinase 2) genes play crucial roles in the coordination of plant growth and development and responses to stress. However, comprehensive studies have not been performed for this gene family in pepper (Capsicum annuum), a very importantSolanaceousvegetable worldwide. To fully understand the status of SnRK2s in chili pepper, a total of 9 putativeSnRK2genes (namedCaSnRK2.1-2.9) were identified in pepper in the present study. These genes were located on 7 different chromosomes and classified into three subfamilies based on the phylogenetic tree. Their conserved motif compositions and exon-intron structures were systematically analyzed, and the results strongly supported the classification. Furthermore, a total of 81 putativecis-elements were found in the promoter regions, and thecis-elements related to hormone and stress signaling were abundant. Finally, theCaSnRK2gene expression profiles among different tissues, especially developing fruit tissue, and under various abiotic stresses were investigated to identify tissue-specific or stress-responsive candidates. This study was the first to comprehensively investigate theSnRK2family in pepper, and the results provide important clues for further functional analyses of fruit development and abiotic stress responses.
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