Genome-wide identification, phylogeny, and expression analysis of PEBP gene family in Castanea mollissima
文献类型： 外文期刊
作者： Tian, Yujuan 1 ; Wang, Jinxin 2 ; Wang, Xiangyu 3 ; Wang, Dongsheng 1 ; Wang, Xuan 1 ; Liu, Jing 1 ; Zhang, Haie 1 ; Zhang, Jingzheng 1 ; Yu, Liyang 1 ;
作者机构： 1.Hebei Normal Univ Sci & Technol, Engn Res Ctr Chestnut Ind Technol, Minist Educ, Qinhuangdao, Hebei, Peoples R China
2.Hebei Acad Agr & Forestry Sci, Shijiazhuang Inst Pomol, Shijiazhuang, Hebei, Peoples R China
3.Hebei Normal Univ Sci & Technol, Off Sci Res, Qinhuangdao, Hebei, Peoples R China
关键词：
PEBP gene family;
期刊名称：FRONTIERS IN GENETICS （ 影响因子：2.8； 五年影响因子：3.3 ）
ISSN：
年卷期： 2025 年 16 卷
页码：
收录情况： SCI
摘要： The phosphatidylethanolamine binding protein (PEBP) family plays an important part in growth and development of plants. Castanea mollissima is an economic plant with significant financial value and has become an important food source in the Northern Hemisphere. However, the PEBP genes in C. mollissima have not been studied yet. In this study, six PEBP genes (CmPEBP1 similar to CmPEBP6) were identified in C. mollissima and comprehensively analyzed in terms of physicochemical properties, phylogeny, gene structures, cis-regulatory elements (CREs), transcription factor interaction, and expression profiles. The six CmPEBP genes were categorized into three subfamilies according to the phylogeny analysis, and all of them share extremely similar gene and protein structures. A total of 136 CREs were identified in the promoter regions of the CmPEBP genes, mainly related to growth and development, environmental stress, hormone response, and light response. Comparative genomic analysis indicated that the expansion of the CmPEBP genes was mainly driven by dispersed duplication, and the CmPEBP3/CmPEBP5 derived from eudicot common hexaploidization (ECH) events retained orthologous genes in all species studied. A total of 259 transcription factors (TFs) belonging to 39 families were predicted to be regulators of CmPEBP genes, and CmPEBP4 was predicted to interact with the most TFs. The RNA-seq data analysis indicated the potential roles of CmPEBP genes in the ovule, bud, and flower development of C. mollissima, as well as in the response to temperature stress, drought stress, and the gall wasp Dryocosmus kuriphilus (GWDK) infestation. Additionally, the expression of CmPEBP genes in C. mollissima seed kernel development and their response to temperature stress were confirmed by RT-qPCR assays. This study gives references and directions for future in-depth studies of PEBP genes.
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