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Genome-wide identification and evolutionary analysis of WOX gene family in cucurbit crops

文献类型： 外文期刊

作者： Li, Chun 1 ; He, Zhen 1 ; Liang, Genyun 1 ; Yang, Nan 1 ; Cai, Peng 1 ; Liang, Ying 1 ; Li, Yuejian 1 ; Fang, Chao 1 ; Liu, Duchen 1 ; Xia, Feng 1 ; Liu, Xiaojun 1 ;

作者机构： 1.Sichuan Acad Agr Sci, Horticulutre Res Inst, Chengdu 610066, Peoples R China

2.Sichuan Agr Univ, Rice Res Inst, Chengdu 611130, Peoples R China

3.Vegetable Germplasm Innovat & Variety Improvement, Chengdu 610066, Peoples R China

4.Sichuan Prov Engn Technol Res Ctr Vegetables, Chengdu 611934, Peoples R China

关键词： WOX genes; Cucurbitaceae; Evolution

期刊名称：HORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY （ 影响因子：2.4； 五年影响因子：2.5 ）

ISSN： 2211-3452

年卷期： 2023 年

页码：

收录情况： SCI

摘要： The WUSCHEL-related homeobox (WOX) gene family is essential for plant growth and development. However, the identification and evolutionary analysis of WOX genes in the Cucurbitaceae have not been well investigated. In the present work, we performed a genome-wide analysis to identify WOX genes in eleven cucurbit crops. In total, 127 WOX genes were identified in eleven cucurbit crops, and classified into three different clades: the ancient clade, the intermediate clade and the WUS clade. The same clade has comparable gene organization and conserved motif patterns. The cis-acting element analysis revealed that WOX genes were involved in light, hormone and stress in cucurbit crops. Gene duplication analysis indicated that dispersed duplication and whole genome duplication were the two primary causes of WOX genes expansion. There were 24 and 129 gene pairs found within cucurbit crops, and between Cucumis sativus and other cucurbit crops, respectively. After gene duplication, all WOX genes were subjected to substantial purifying selection pressure according to the selective pressure analysis. Functional divergence analysis revealed that ancient and intermediate clades may have descended from some essential amino acid sites rather than different evolution rate. Our research provides a comprehensive analysis of WOX genes which will be helpful for further research into their function study in Cucurbitaceae plants.

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