Genome-wide characterization, evolutionary analysis of WRKY genes in Cucurbitaceae species and assessment of its roles in resisting to powdery mildew disease
文献类型： 外文期刊
作者： Jiao, Zigao 1 ; Sun, Jianlei 1 ; Wang, Chongqi 1 ; Dong, Yumei 1 ; Xiao, Shouhua 1 ; Gao, Xuli 2 ; Cao, Qiwei; Li, Libin; Li, Wendong; Gao, Chao;
作者机构： 1.Shandong Acad Agr Sci, Shandong Key Lab Greenhouse Vegetable Biol, Expt Stn Vegetable Sci Observat Huang Huai Area, Inst Vegetables & Flowers,Minist Agr, Jinan, Shandong, Peoples R China
2.Shandong Acad Agr Sci, Shandong Key Lab Greenhouse Vegetable Biol, Expt Stn Vegetabl
期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）
ISSN： 1932-6203
年卷期： 2018 年 13 卷 12 期
页码：
收录情况： SCI
摘要： The WRKY proteins constitute a large family of transcription factors that have been known to play a wide range of regulatory roles in multiple biological processes. Over the past few years, many reports have focused on analysis of evolution and biological function of WRKY genes at the whole genome level in different plant species. However, little information is known about WRKY genes in melon (Cucumis melo L.). In the present study, a total of 56 putative WRKY genes were identified in melon, which were randomly distributed on their respective chromosomes. A multiple sequence alignment and phylogenetic analysis using melon, cucumber and watermelon predicted WRKY domains indicated that melon WRKY proteins could be classified into three main groups (I-III). Our analysis indicated that no recent duplication events of WRKY genes were detected in melon, and strong purifying selection was observed among the 85 orthologous pairs of Cucurbitaceae species. Expression profiles of CmWRKY derived from RNA-seq data and quantitative RT-PCR (qRT-PCR) analyses showed distinct expression patterns in various tissues, and the expression of 16 CmWRKY were altered following powdery mildew infection in melon. Besides, we also found that a total of 24 WRKY genes were co-expressed with 11 VQ family genes in melon. Our comparative genomic analysis provides a foundation for future functional dissection and understanding the evolution of WRKY genes in cucurbitaceae species, and will promote powdery mildew resistance study in melon.
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