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Characterization and expression profiling of the ICE-CBF-COR genes in wheat

文献类型： 外文期刊

作者： Guo, Jie 1 ; Ren, Yongkang 2 ; Tang, Zhaohui 1 ; Shi, Weiping 1 ; Zhou, Meixue 1 ;

作者机构： 1.Shanxi Agr Univ, Coll Agron, Taigu, Peoples R China

2.Shanxi Acad Agr Sci, Res Ctr Biotechnol, Taiyuan, Shanxi, Peoples R China

3.Univ Tasmania, Sch Land & Food, Hobart, Tas, Australia

关键词： Expression patterns; Triticum aestivum; ICE-CBF-COR

期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）

ISSN： 2167-8359

年卷期： 2019 年 7 卷

页码：

收录情况： SCI

摘要： Cold stress is one of the major abiotic stresses that limit crop production. The ICE-CBF-COR pathway is associated with cold stress response in a wide variety of crop species. However, the ICE-CBF-COR genes has not been well characterized in wheat (Triticum aestivum). This study identified, characterized and examined the expression profiles of the ICE, CBF and COR genes for cold defense in wheat. Five ICE (inducer of CBF expression) genes, 37 CBF (C-repeat binding factor) genes and 11 COR (cold-responsive or cold-regulated) genes were discovered in the wheat genome database. Phylogenetic trees based on all 53 genes revealed that CBF genes were more diverse than ICE and COR genes. Twenty-two of the 53 genes appeared to include 11 duplicated pairs. Twenty rice (Oryza sativa) genes and 21 sorghum (Sorghum bicolor) and maize (Zea mays) genes showed collinearity with the wheat ICE, CBF and COR genes. Transcriptome data and qRT-PCR analyses revealed tissue-specific expression patterns of the ICE, CBF and COR genes, and identified similarities in the expression pattern of genes from the same family when subjected to drought, heat, drought plus heat, and cold stress. These results provide information for better understanding the biological roles of ICE, CBF, COR genes in wheat.

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