Genome-wide analysis and functional characterization of CHYR gene family associated with abiotic stress tolerance in bread wheat (Triticum aestivum L.)
文献类型： 外文期刊
作者： Liu, Hao 1 ; Yang, Wenbo 2 ; Zhao, Xingli 1 ; Kang, Guozhang 3 ; Li, Na 1 ; Xu, Huawei 1 ;
作者机构： 1.Henan Univ Sci & Technol, Coll Agr, Luoyang 471000, Henan, Peoples R China
2.Henan Acad Agr Sci, Cereal Crops Res Inst, Zhengzhou 450046, Henan, Peoples R China
3.Henan Agr Univ, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450046, Henan, Peoples R China
关键词： CHYR genes; Genome-wide identification; Gene expression; Abiotic stress; Wheat (Triticum aestivum L; )
期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）
ISSN： 1471-2229
年卷期： 2022 年 22 卷 1 期
页码：
收录情况： SCI
摘要： Background CHY zinc-finger and RING finger (CHYR) proteins have been functionally characterized in plant growth, development and various stress responses. However, the genome-wide analysis was not performed in wheat. Results In this study, a total of 18 TaCHYR genes were identified in wheat and classified into three groups. All TaCHYR genes contained CHY-zinc finger, C3H2C3-type RING finger and zinc ribbon domains, and group III members included 1-3 hemerythrin domains in the N-terminus regions. TaCHYR genes in each group shared similar conserved domains distribution. Chromosomal location, synteny and cis-elements analysis of TaCHYRs were also analyzed. Real-time PCR results indicated that most of selected 9 TaCHYR genes exhibited higher expression levels in leaves during wheat seedling stage. All these TaCHYR genes were up-regulated after PEG treatment, and these TaCHYRs exhibited differential expression patterns in response to salt, cold and heat stress in seedling leaves. The growth of yeast cells expressing TaCHYR2.1, TaCHYR9.2 and TaCHYR11.1 were inhibited under salt and dehydration stress. Moreover, gene ontology (GO) annotation, protein interaction and miRNA regulatory network of TaCHYR genes were analyzed. Conclusions These results increase our understanding of CHYR genes and provide robust candidate genes for further functional investigations aimed at crop improvement.
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