文献类型：期刊文献

英文题名：Genome-Wide Identification and Expressional Analysis of the TIFY Gene Family in Eucalyptus grandis

作者：Lei, Chunxia[1] Huang, Yingtong[1] An, Rui[1] Fan, Chunjie[2] Zhang, Sufang[1] Wu, Aimin[1] Jing, Yue[1,3]

第一作者：Lei, Chunxia

通信作者：Jing, Y[1];Jing, Y[2]

机构：[1]South China Agr Univ, Coll Forestry & Landscape Architecture, Guangdong Key Lab Innovat Dev & Utilizat Forest P, Guangzhou 510642, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, State Key Lab Tree Genet & Breeding, Key Lab State Forestry & Grassland Adm Trop Forest, Guangzhou 510520, Peoples R China;[3]Shaoguan Univ, Guangdong Prov Key Lab Utilizat & Conservat Food &, Shaoguan 512005, Peoples R China

年份：2025

卷号：26

期号：16

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：;Scopus(收录号：2-s2.0-105014255939);WOS:【SCI-EXPANDED(收录号:WOS:001557758900001)】；

基金：The author(s) declare that financial support was received for the research and/or publication of this article. This work was funded by Guangdong Basic and Applied Basic Research Foundation (2025A1515012324).

语种：英文

外文关键词：TIFY family genes; expression analysis; functional analysis; Eucalyptus grandis

摘要：The TIFY gene family participates in crucial processes including plant development, stress adaptation, and hormonal signaling cascades. While the TIFY gene family has been extensively characterized in model plant systems and agricultural crops, its functional role in Eucalyptus grandis, a commercially valuable tree species of significant ecological and economic importance, remains largely unexplored. In the present investigation, systematic identification and characterization of the TIFY gene family were performed in E. grandis using a combination of genome-wide bioinformatics approaches and RNA-seq-based expression profiling. Nineteen EgTIFY genes were identified in total and further grouped into four distinct subfamilies, TIFY, JAZ (subdivided into JAZ I and JAZ II), PPD, and ZML, based on phylogenetic relationships. These genes exhibited considerable variation in gene structure, chromosomal localization, and evolutionary divergence. Promoter analysis identified a multitude of cis-acting motifs involved in mediating hormone responsiveness and regulating abiotic stress responses. Transcriptomic profiling indicated that EgJAZ9 was strongly upregulated under methyl jasmonate (JA) treatment, suggesting its involvement in JA signaling pathways. Taken together, these results offer valuable perspectives on the evolutionary traits and putative functional roles of EgTIFY genes.