文献类型：期刊文献

英文题名：Insights into the evolutionary origin and expansion of the BBX gene family

作者：Yu, Liyang[1,2] Lyu, Zhongrui[1,2] Liu, Hong[1,2] Zhang, Guoyun[1,2] He, Caiyun[1,2] Zhang, Jianguo[1,2,3]

第一作者：Yu, Liyang

通信作者：He, CY[1];Zhang, JG[1];He, CY[2];Zhang, JG[2];Zhang, JG[3]|[a0005b245645e47e67b16]何彩云;

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Natl Forestry & Grassland Adm, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Natl Forestry & Grassland Adm, Key Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China;[3]Nanjing Forestry Univ, Collaborat Innovat Ctr Sustainable Forestry South, Nanjing 210037, Peoples R China

年份：2022

卷号：16

期号：2

起止页码：205-214

外文期刊名：PLANT BIOTECHNOLOGY REPORTS

收录：;Scopus(收录号：2-s2.0-85124132232);WOS:【SCI-EXPANDED(收录号:WOS:000750727200001)】；

基金：This research was funded by the National Natural Science Foundation of China [U2003116] and the Fundamental Research Funds for the Central Non-profit Research Institution of Chinese Academy of Forestry [No. ZDRIF2019; No. CAFYBB2020SZ001-2].

语种：英文

外文关键词：B-box protein; Origin; Duplication model; Evolutionary model

摘要：The B-box proteins are a class of zinc finger transcription factors and play important roles in regulating plant growth, development, and stress response. However, their origin and expansion model in plants have been very vague. In this study, 208 B-box genes were identified in 18 plant species, and phylogenetic analyses divided them into five structure groups. Subsequently, the sequence analysis including theoretical isoelectric point, instability index, and aliphatic index showed the wide variation of B-box gene in different species. Our multispecies genome-wide analysis reveals that the structure groups III and IV in the plant BBX gene family have the earliest origin (Rhodophyta) and are extensively expanded in land plants, while the other three structure groups (I, II, and V) seem to originate at least in the last common ancestor of land plants. Furthermore, whole genome duplication (WGD) was the main driver (28 gene pairs, 65.12%) of the B-box gene family expansion, followed by segmental duplication, which tend to have more introns and are subject to more intense purification selections. We also analyzed the sequence differences between B-box domains to propose a new evolutionary model of B-box domain. These analyses provide new insights for understanding the origin and evolution of the B-box gene family.