文献类型：期刊文献

英文题名：Analysis of Populus glycosyl hydrolase family I members and their potential role in the ABA treatment and drought stress response

作者：Bian, Zhan[1] Wang, Dongli[1] Liu, Yunshan[1,3] Xi, Yimin[1] Wang, Xiaoling[2] Meng, Sen[1]

第一作者：Bian, Zhan

通信作者：Meng, S[1];Wang, XL[2]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, State Key Lab Tree Genet & Breeding, Guangzhou 510520, Guangdong, Peoples R China;[2]Jiangxi Acad Sci, Inst Biol Resources, Nanchang 330096, Jiangxi, Peoples R China;[3]Chongqing Three Gorges Univ, Coll Biol & Food Engn, Chongqing 404100, Peoples R China

年份：2021

卷号：163

起止页码：178-188

外文期刊名：PLANT PHYSIOLOGY AND BIOCHEMISTRY

收录：;Scopus(收录号：2-s2.0-85104086318);WOS:【SCI-EXPANDED(收录号:WOS:000648298300018)】；

基金：This research was supported by grants from Fundamental Research Funds for the Central Nonprofit Research Institution of CAF (CAFYBB2020SY018, CAFYBB2019QD001), the National Natural Science Foundation of China (31722012, 31901304) and Natural Science Foundation of Guangdong Province, China (2019A1515011595).

语种：英文

外文关键词：beta-glucosidase; Populus trichocarpa; Drought; ABA

摘要：Glycoside hydrolase family 1 (GH1) beta-glucosidases (BGLUs) are encoded by a large number of genes and are involved in many developmental processes and stress responses in plants. Due to their importance in plant growth and development, genome-wide analyses have been conducted in the model plant species Arabidopsis thaliana, rice and maize but not in woody plant species, which have important economic and ecological value. In this study, we systematically analyzed Populus BGLUs (PtBGLUs) and demonstrated the involvement of several genes under stress conditions. Forty-four PtBGLUs were identified in Populus databases; these genes were located on 11 chromosomes, and the proteins of several PtBGLU genes were highly similar. More than 90% of PtBGLUs contain three conserved motifs. Collinearity results showed that 44 PtBGLU genes resulted from 12 tandem and 5 segmental duplication events. Phylogenetic analysis revealed that 128 BGLU genes from Populus trichocarpa, A. thaliana and Oryza sativa could be classified into 4 subgroups and subgroup II and. were differently having PtBGLUs and AtBGLUs. We further investigated whether several PtBGLUs responded to drought stress and ABA treatment, and the results showed that most of the selected BGLU genes were expressed in response to stress, which is consistent with previous studies involving rice and Arabidopsis homologous genes. Large numbers of stress-, hormone-, and development-related elements in the PtBGLU promoters suggest that BGLU genes may be involved in complex networks. Taken together, our results provide valuable information for an improved understanding of beta-glucosidase function in woody plants.