文献类型：期刊文献

英文题名：Genome-Wide Identification, Characterization, and Expression Analysis of the BES1 Family Genes under Abiotic Stresses in Phoebe bournei

作者：Li, Jingshu[1] Sun, Honggang[2] Wang, Yanhui[3] Fan, Dunjin[1] Zhu, Qin[1] Zhang, Jiangyonghao[1,4] Zhong, Kai[5] Yang, Hao[1] Chang, Weiyin[1,4] Cao, Shijiang[1]

第一作者：Li, Jingshu

通信作者：Chang, WY[1];Cao, SJ[1];Chang, WY[2]

机构：[1]Fujian Agr & Forestry Univ, Coll Forestry, Fuzhou 350002, Peoples R China;[2]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[3]Fujian Agr & Forestry Univ, Coll Hort, Fuzhou 350002, Peoples R China;[4]Fujian Agr & Forestry Univ, Lab Virtual Teaching & Res Forest Therapy Specialt, Fuzhou 350002, Peoples R China;[5]Fujian Agr & Forestry Univ, Coll JunCao Sci & Ecol, Fuzhou 350002, Peoples R China

年份：2024

卷号：25

期号：5

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：;Scopus(收录号：2-s2.0-85187645242);WOS:【SCI-EXPANDED(收录号:WOS:001183074300001)】；

基金：No Statement Available

语种：英文

外文关键词：Phoebe bournei; brassinosteroid (BR); BES1 genes; expression profiling; abiotic stresses

摘要：The BRI1 EMS suppressor 1(BES1) transcription factor is a crucial regulator in the signaling pathway of Brassinosteroid (BR) and plays an important role in plant growth and response to abiotic stress. Although the identification and functional validation of BES1 genes have been extensively explored in various plant species, the understanding of their role in woody plants-particularly the endangered species Phoebe bournei (Hemsl.) Yang-remains limited. In this study, we identified nine members of the BES1 gene family in the genome of P. bournei; these nine members were unevenly distributed across four chromosomes. In our further evolutionary analysis of PbBES1, we discovered that PbBES1 can be divided into three subfamilies (Class I, Class II, and Class IV) based on the evolutionary tree constructed with Arabidopsis thaliana, Oryza sativa, and Solanum lycopersicum. Each subfamily contains 2-5 PbBES1 genes. There were nine pairs of homologous BES1 genes in the synteny analysis of PbBES1 and AtBES1. Three segmental replication events and one pair of tandem duplication events were present among the PbBES1 family members. Additionally, we conducted promoter cis-acting element analysis and discovered that PbBES1 contains binding sites for plant growth and development, cell cycle regulation, and response to abiotic stress. PbBES1.2 is highly expressed in root bark, stem bark, root xylem, and stem xylem. PbBES1.3 was expressed in five tissues. Moreover, we examined the expression profiles of five representative PbBES1 genes under heat and drought stress. These experiments preliminarily verified their responsiveness and functional roles in mediating responses to abiotic stress. This study provides important clues to elucidate the functional characteristics of the BES1 gene family, and at the same time provides new insights and valuable information for the regulation of resistance in P. bournei.