Genome-Wide Identification of WOX Gene Family in Chimonanthus praecox and a Functional Analysis of CpWUS
文献类型： 外文期刊
作者： Wu, Huafeng 1 ; Liu, Bin 1 ; Cao, Yinzhu 1 ; Ma, Guanpeng 1 ; Zheng, Xiaowen 1 ; Zhu, Haoxiang 3 ; Sui, Shunzhao 1 ;
作者机构： 1.Southwest Univ, Coll Hort & Landscape Architecture, Chongqing Engn Res Ctr Floriculture,Minist Educ, Key Lab Agr Biosafety & Green Prod Upper Yangtze R, Chongqing 400715, Peoples R China
2.Guizhou Acad Agr Sci, Inst Hort, Guiyang 550006, Peoples R China
3.Southwest Univ, Coll Hort & Landscape Architecture, Chongqing 400715, Peoples R China
关键词：
期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN： 2223-7747
年卷期： 2025 年 14 卷 7 期
页码：
收录情况： SCI
摘要： Chimonanthus praecox, also known as wintersweet, is a traditional ornamental plant in China. It blooms during the cold winter months and emits a long-lasting fragrance. The WUSCHEL-related homeobox (WOX) transcription factor family is a plant-specific family of homeodomain (HD) transcription factors that plays diverse roles in plant development. We identified 13 WOX family genes (CpWOX1-CpWOX12 and CpWUS) and systematically analysed their physicochemical properties, evolutionary relationships, conserved domains, and expression regulation characteristics. The subcellular localization prediction indicates that all CpWOX proteins are localized in the nucleus and contain a conserved homeobox domain, with the WUS clade specifically containing a WUS-box motif. Phylogenetic analysis revealed that these genes are divided into three evolutionary branches: the WUS, ancient, and intermediate clades. Promoter analysis suggests that CpWOX genes may be involved in hormone responses, abiotic stress, developmental regulation, and encodes a nuclear-localised protein with self-activating activity. It is highly expressed in the stamen and root and is induced by low and high temperatures, salt stress, and methyl jasmonate. This study revealed the evolutionary characteristics of the WOX family genes in wintersweet and the function of CpWUS in regulating flowering time and root development, providing a theoretical basis for understanding the developmental regulatory mechanisms in wintersweet.
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