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Genome-Wide Characterization of CaM/CML Gene Family in Cabbage (Brassica oleracea var. capitata): Expression Profiling and Functional Implications During Hyaloperonospora parasitica Infection

文献类型： 外文期刊

作者： Yuankang Wu;Bin Zhang;Xuehui Yao;Limei Yang;Mu Zhuang;Honghao Lv;Yong Wang;Jialei Ji;Xilin Hou;Yangyong Zhang

作者机构：

关键词： Brassica oleracea;calmodulin gene family;downy mildew;expression analysis;RNA-seq

期刊名称： International Journal of Molecular Sciences

ISSN： 1661-6596

年卷期： 2025 年 26 卷 7 期

页码：

收录情况： SCIE（2025版）

摘要： Calmodulin (CaM) and calmodulin-like proteins (CMLs) are crucial for calcium signal transduction in plants. Although CaM/CML genes have been extensively studied in various plant species, research on these genes in Brassica oleracea is still limited. In this study, 14 BoCaM and 75 BoCML genes were identified in the B. oleracea genome through a genome-wide search. Phylogenetic analysis categorized these genes, along with their homologs in Arabidopsis and rice, into six distinct groups. All BoCaM/BoCML genes were unevenly distributed across the nine chromosomes of B. oleracea, with 52 of them lacking introns. Collinearity analysis revealed that CaM/CML genes in Arabidopsis are present in multiple copies in the B. oleracea genome. Moreover, the majority of BoCaM/BoCML genes exhibited distinct expression patterns across the different tissues, indicating their role in the growth and development of B. oleracea. A clustering heatmap of BoCaM/BoCML gene expression showed distinct patterns before and four days after Hyaloperonospora parasitica infection, dividing the genes into five groups based on their expression patterns. Notably, BoCML46-2 is significantly downregulated in both susceptible and resistant materials, suggesting that it plays an important role in responding to H. parasitica infection. This study conducted a comprehensive survey of the BoCaM/BoCML gene family in B. oleracea. It could serve as a theoretical foundation for further functional identification and utilization of family members and their role in the interaction between B. oleracea and H. parasitica.

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