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In Silico Analysis of the MAPK Gene Family in Cabbage and Its Expression during Development and Stress Response

文献类型： 外文期刊

作者： Wang, Min 1 ; Chen, Jinxiu 1 ; Zhu, Xiaowei 1 ; Tai, Xiang 1 ; Bo, Tianyue 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Hort Res Inst, Shanghai Key Lab Protected Hort Technol, Shanghai 201403, Peoples R China

关键词： MAPK gene family; genome-wide analysis; Plasmodiophora brassicae; abiotic stress; expression pattern

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 9 卷 10 期

页码：

收录情况： SCI

摘要： Cabbage is often affected by an adverse environment and pathogens during its growth, resulting in a decline in yield and quality. Mitogen-activated protein kinases (MAPKs) play crucial roles in the development process, hormones, abiotic and biotic stresses, and cell division. So far, MAPKs have been characterized in various species. However, no systematic analysis of the MAPK family in cabbage has been performed. A total of 24 BoMAPK genes were identified and renamed according to Arabidopsis homologs; they were unevenly distributed on nine chromosomes. According to the conserved domain and phylogenetic relationship, BoMAPKs were divided into four subgroups, of which three belonged to subgroup A, four to subgroup B, three to subgroup C, and fourteen to subgroup D, respectively. There were 13 segmental duplication events in the cabbage genome. The Ka/Ks ratios for duplicated gene pairs of the MAPK family were less than 0.2, indicating that these BoMAPK genes have undergone purification selection in evolution. There were various cis-acting elements associated with stress, hormones, and development found in the promoter regions of most BoMAPK genes. Transcriptome data showed a high expression of BoMAPK3, BoMAPK4.1, and BoMAPK6.1 genes in various tissues. BoMAPK17.2, BoMAPK20.1 and BoMAPK20.2 were significantly induced by Plasmodiophora brassicae, as evidenced in the quantitative PCR (RT-qPCR) analysis, revealing their enormous potential to regulate stress response. RT-qPCR results showed how the transcriptional levels of BoMAPK genes varied substantially under abiotic stress at different time points. These analysis results provide a reference to further explore the function and evolution of BoMAPK genes in cabbage.

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