Genome-Wide Identification and Characterization of the WRKY Gene Family in Cucurbita maxima

文献类型： 外文期刊

第一作者： Zhou, Qin

作者： Zhou, Qin;Guo, Ziqing;Zhou, Xiaojun;Zhu, Pu;Zhou, Lei;Wang, Duanhua;Bo, Kailiang

作者机构：

关键词： Cucurbita maxima; WRKY; transcription factor; biotic stress; CMV

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 11 期

页码：

收录情况： SCI

摘要： In higher plants, WRKY transcription factors are broadly involved in a variety of life activities and play an important role in both biotic and abiotic stress responses. However, little is known about the functions of WRKY genes in the popular species, such as Cucurbita maxima (pumpkin), which is planted worldwide. In the present study, 102 CmWRKY genes were identified in the C. maxima genome. Chromosome location, multiple sequence alignment, phylogenetic analysis, and synteny analysis of the CmWRKYs were performed. Notably, we found that silencing CmWRKY22 promoted cucumber mosaic virus (CMV) infection, whereas overexpression of CmWRKY22 inhibited the CMV infection. Subsequently, an electrophoretic mobility shift assay (EMSA) confirmed that CmWRKY22 was able to bind to the W-box at the promoter of CmPR1b, which is a responsive gene of the salicylic acid (SA) signaling pathway. In summary, this study has provided a foundation for the antiviral functions of WRKY transcription factors in C. maxima.

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