文献类型：期刊文献

英文题名：Genome-wide identification and expression analysis of GRAS gene family in Eucalyptus grandis

作者：Lu, Haifei[1,4] Xu, Jianmin[4] Li, Guangyou[4] Zhong, Tailin[1] Chen, Danwei[1] Lv, Jiabin[2,3]

第一作者：Lu, Haifei

通信作者：Lv, JB[1];Lv, JB[2]

机构：[1]Zhejiang Shuren Univ, Coll Urban Construct, Hangzhou 310015, Peoples R China;[2]Anhui Agr Univ, Sch Forestry & Landscape Architecture, Hefei 230036, Anhui, Peoples R China;[3]Anhui Agr Univ, Anhui Prov Key Lab Forest Resources & Silviculture, Hefei 230036, Peoples R China;[4]Chinese Acad Forestry, Res Inst Trop Forestry, Key Lab State Forestry Adm Trop Forestry, Guangzhou 510520, Peoples R China

年份：2024

卷号：24

期号：1

外文期刊名：BMC PLANT BIOLOGY

收录：;Scopus(收录号：2-s2.0-85196104773);WOS:【SCI-EXPANDED(收录号:WOS:001250615100004)】；

基金：Please add: This research was funded by the National Key Research and Development Program of China during the 14th five-year plan Period (2022YFD2200203), the Provincial Natural Resources Fund (2208085QC92), the Project of Introducing and Stabilizing Talents of Anhui agricultural university (rc372109), and the Innovation and entrepreneurship training program for university students (X202310364233).

语种：英文

外文关键词：Eucalyptus grandis; GRAS family; Genome-wide analysis; Phytohormone; Abiotic stress

摘要：Background The GRAS gene family is a class of plant-specific transcription factors with important roles in many biological processes, such as signal transduction, disease resistance and stress tolerance, plant growth and development. So far, no information available describes the functions of the GRAS genes in Eucalyptus grandis. Results A total of 82 GRAS genes were identified with amino acid lengths ranging from 267 to 817 aa, and most EgrGRAS genes had one exon. Members of the GRAS gene family of Eucalyptus grandis are divided into 9 subfamilies with different protein structures, while members of the same subfamily have similar gene structures and conserved motifs. Moreover, these EgrGRAS genes expanded primarily due to segmental duplication. In addition, cis-acting element analysis showed that this family of genes was involved involved in the signal transduction of various plant hormones, growth and development, and stress response. The qRT-PCR data indicated that 18 EgrGRAS genes significantly responded to hormonal and abiotic stresses. Among them, the expression of EgrGRAS13, EgrGRAS68 and EgrGRAS55 genes was significantly up-regulated during the treatment period, and it was hypothesised that members of the EgrGRAS family play an important role in stress tolerance. Conclusions In this study, the phylogenetic relationship, conserved domains, cis-elements and expression patterns of GRAS gene family of Eucalyptus grandis were analyzed, which filled the gap in the identification of GRAS gene family of Eucalyptus grandis and laid the foundation for analyzing the function of EgrGRAS gene in hormone and stress response.