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Genome-wide identification and expression analysis of the TaRRA gene family in wheat (Triticum aestivum L.)

文献类型： 外文期刊

作者： Sun, Lijing 1 ; Lv, Liangjie 1 ; Zhao, Jie 1 ; Hu, Mengyun 1 ; Zhang, Yelun 1 ; Zhao, Yun 1 ; Tang, Xiaodong 1 ; Wang, Peinan 1 ; Li, Qianying 1 ; Chen, Xiyong 1 ; Li, Hui 1 ; Zhang, Yingjun 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Lab Crop Genet & Breeding Hebei, Shijiazhuang, Peoples R China

关键词： type-A response regulators; gene family; wheat (Triticum aestivum L; ); expression pattern; cytokinin; abiotic stress

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Cytokinin is an important endogenous hormone in plants performing a wide spectrum of biological roles. The type-A response regulators (RRAs) are primary cytokinin response genes, which are important components of the cytokinin signaling pathway and are involved in the regulation of plant growth and development. By analysis of the whole genome sequence of wheat, we identified 20 genes encoding RRAs which were clustered into eight homologous groups. The gene structure, conserved motifs, chromosomal location, and cis-acting regulatory elements of the TaRRAs were analyzed. Quantitative real-time polymerase chain reaction (qRT-PCR) results showed that the expression levels of most of the TaRRAs increased rapidly on exogenous cytokinin application. Moreover, the TaRRA family members displayed different expression profiles under the stress treatments of drought, salt, cold, and heat. This study provides valuable insights into the RRA gene family in wheat and promotes the potential application of these genes in wheat genetic improvement.

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