Genome-wide identification and analysis of NPR family genes in Brassica juncea var. tumida

文献类型： 外文期刊

第一作者： Wang, Pan

作者： Wang, Pan;Zhang, Zhuo;Cai, Zhaoming;Liao, Jingjing;Tan, Qin;Xiang, Meiqin;Chang, Lijie;Xu, Dan;Tian, Qin;Wang, Diandong;Zhao, Zhixiang;Zhang, Zhuo

作者机构：

关键词： Brassica juncea var. tumida; NPR; Abiotic stress; Expression pattern; Salicylic acid; Salt stress

期刊名称：GENE （ 影响因子：3.688； 五年影响因子：3.329 ）

ISSN： 0378-1119

年卷期： 2021 年 769 卷

页码：

收录情况： SCI

摘要： Nonexpressor of pathogenesis-related (NPR) genes are bona fide transcription cofactors in the signal transduction pathway of salicylic acid (SA) and play critical regulatory roles in plant immunity. However, the NPR family genes in Brassica juncea var. tumida have not yet been comprehensively identified and analyzed as of yet. In the present study, NPR genes in B. juncea var. tumida seedlings were identified, and the tissue-specific expression patterns of NPR genes in the seedling were analyzed under salt stress (200 mM) treatment and infection by Plasmodiophora brassicae. A total of 19 NPR family genes clustering into six separate groups were identified in the genome of B. juncea var. tumida. These BjuNPR family genes were located in 11 of 18 chromosomes of B. juncea var. tumida and each possessed 1-5 exons. The BjuNPR family members had similar protein structures and conserved motifs. The BjuNPR genes exhibited tissue-specific expression patterns in the root, stem, leaf, flower and pod. Some BjuNPR genes were sensitive to salt stress and showed up-regulated or down-regulated expression patterns and most BjuNPR genes were up-regulated upon infection by P. brassicae. This study provides a foundation for further research into BjuNPR genes regulation in plant growth, development, and abiotic stress tolerance.

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