Comprehensive Analysis of Wall-Associated Kinase Genes and Their Expression Under Abiotic and Biotic Stress in Chinese Cabbage (Brassica rapa ssp. pekinensis)

文献类型： 外文期刊

第一作者： Zhang, Bin

作者： Zhang, Bin;Li, Pan;Su, Tongbing;Li, Peirong;Xin, Xiaoyun;Wang, Weihong;Zhao, Xiuyun;Yu, Yangjun;Zhang, Deshuang;Yu, Shuancang;Zhang, Fenglan;Zhang, Bin;Su, Tongbing;Li, Peirong;Xin, Xiaoyun;Wang, Weihong;Zhao, Xiuyun;Yu, Yangjun;Zhang, Deshuang;Yu, Shuancang;Zhang, Fenglan;Li, Pan;Su, Tongbing;Li, Peirong;Wang, Weihong;Zhao, Xiuyun;Yu, Yangjun;Zhang, Deshuang;Yu, Shuancang;Zhang, Fenglan

作者机构：

关键词： Genome-wide analysis; WAK genes; Abiotic and biotic stress; Expression pattern; Chinese cabbage

期刊名称：JOURNAL OF PLANT GROWTH REGULATION （ 影响因子：4.169； 五年影响因子：4.038 ）

ISSN： 0721-7595

年卷期： 2020 年 39 卷 1 期

页码：

收录情况： SCI

摘要： The wall-associated kinase (WAK) gene family, a subfamily of the receptor-like kinase (RLK) gene family, is associated with the cell wall in plants, and has vital functions in cell expansion, pathogen resistance, and heavy metal stress tolerance because of their roles of the extracellular environment sensors to trigger intracellular signals in Arabidopsis. In the present study, 96 Chinese cabbage (Brassica rapa ssp. pekinensis) BrWAK gene family members were identified from the B. rapa genome using a reiterative database search and manual confirmation. The protein domain characterization, gene structure analysis, and phylogenetic analysis of the BrWAKs classified them into three gene groups. Comparative genomic analysis between WAK genes from Chinese cabbage and Arabidopsis revealed that the BrWAK genes have undergone the gene expansion and deletion events during evolution. Furthermore, the conserved motifs in the kinase domains of the WAK proteins and eukaryotic protein kinase family proteins were compared and some non-RD kinase proteins among the BrWAKs were identified. Ultimately, expression analysis of BrWAK genes in six tissues and under various stress conditions revealed that some tissue-specific WAK genes might function in callus cell growth and reproduction process; Bra012273, Bra016426, Bra016427, and Bra025882 might be involved in downy mildew resistance and high humidity stress; Bra012273, Bra025882, and Bra025883 might be responded to drought and heat stress. Taken together, this research was identified and classified the WAK gene family in Chinese cabbage and provided valuable resources to explore the potential roles of BrWAK genes in plant development and stress responses.

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