WANG Changbiao
College of Agricultural, Shanxi Agricultural University, Taiyuan 030031;College of Life Sciences, Shanxi Agricultural University, Taiyuan 030031YIN Yurong
College of Agricultural, Shanxi Agricultural University, Taiyuan 030031CHENG Ze
College of Agricultural, Shanxi Agricultural University, Taiyuan 030031REN Yongkang
College of Agricultural, Shanxi Agricultural University, Taiyuan 030031NIU Yuqi
College of Agricultural, Shanxi Agricultural University, Taiyuan 030031LIU Jiang
College of Life Sciences, Shanxi Agricultural University, Taiyuan 030031HAN Bin
College of Life Sciences, Shanxi Agricultural University, Taiyuan 030031YANG Sheng
College of Agricultural, Shanxi Agricultural University, Taiyuan 030031TANG Chaohui
College of Agricultural, Shanxi Agricultural University, Taiyuan 0300311.College of Agricultural, Shanxi Agricultural University, Taiyuan 030031;2.College of Life Sciences, Shanxi Agricultural University, Taiyuan 030031
Foundation projects: National Key R&D Program of China(2022YFD1200901); Shanxi Provincial Key R&D Program(202102140601001); Shanxi Province Modern Agricultural Industry Technology System Construction Special Fund (2023CYJSTX02-06)
The type-B authentic response regulator (B-ARR) family members are positive regulators in cytokinin signal transduction, and play important roles in plant growth and development and resistance to abiotic stresses. However, there are few studies on the B-ARR gene family in wheat. In this study, 25 B-ARR gene family members were identified from wheat genome, and their physicochemical properties, gene structure, cis-acting elements and abiotic stress-induced expression patterns were analyzed by bioinformatics methods. The results showed that all B-ARR proteins were localized in the nucleus based on bioinformatics prediction, and their secondary structure was mainly consisting of α-helix and random crimp. B-ARR genes were not evenly distributed on wheat chromosomes, and the number of B-ARR genes was the highest on chromosome 7. In addition, multiple cis-acting regulatory elements related to growth and development, hormone response, and biological and abiotic stress have been identified in the promoter regions. RT-qPCR analysis showed that the relative expression of TaARRM-like9, TaARRM-like10, TaARRM-like12 and TaARRM-like13 were significantly up-regulated under abiotic stresses treatments, including drought, salt and low temperature. This study laid a foundation for further research on the role of B-ARR transcription factor in wheat development and abiotic stress response.