文献类型：期刊文献

英文题名：The Tetracentron genome provides insight into the early evolution of eudicots and the formation of vessel elements

作者：Liu, Ping-Li[1,2] Zhang, Xi[1,2] Mao, Jian-Feng[1,2] Hong, Yan-Ming[1,2] Zhang, Ren-Gang[3] Yilan, E.[1,2] Nie, Shuai[1,2] Jia, Kaihua[1,2] Jiang, Chen-Kun[4] He, Jian[5] Shen, Weiwei[1,2] He, Qizouhong[1,2] Zheng, Wenqing[1,2] Abbas, Samar[1,2] Jewaria, Pawan Kumar[1,2] Tian, Xuechan[1,2] Liu, Chang-jun[6] Jiang, Xiaomei[7,8] Yin, Yafang[7,8] Liu, Bo[7,8] Wang, Li[9] Jin, Biao[9] Ma, Yongpeng[10] Qiu, Zongbo[11] Baluska, Frantisek[12] Samaj, Jozef[13] He, Xinqiang[14] Niu, Shihui[1,2] Xie, Jianbo[1,2] Xie, Lei[5] Xu, Huimin[15] Kong, Hongzhi[16] Ge, Song[16] Dixon, Richard A.[1,17,18] Jiao, Yuannian[16] Lin, Jinxing[1,2]

第一作者：Liu, Ping-Li

通信作者：Lin, JX[1];Lin, JX[2];Jiao, YN[3]

机构：[1]Beijing Forestry Univ, Beijing Adv Innovat Ctr Tree Breeding Mol Design, Beijing 100083, Peoples R China;[2]Beijing Forestry Univ, Coll Biol Sci & Biotechnol, Beijing 100083, Peoples R China;[3]Beijing Ori Gene Sci & Technol Co Ltd, Beijing 102206, Peoples R China;[4]Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China;[5]Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China;[6]Brookhaven Natl Lab, Biol Dept, Upton, NY 11973 USA;[7]Chinese Acad Forestry, Wood Collect WOODPEDIA, Beijing 100091, Peoples R China;[8]Chinese Acad Forestry, Res Inst Wood Ind, Dept Wood Anat & Utilizat, Beijing 100091, Peoples R China;[9]Yangzhou Univ, Coll Hort & Plant Protect, Yangzhou 225009, Jiangsu, Peoples R China;[10]Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Integrat Conservat Plant Species, Kunming 650201, Yunnan, Peoples R China;[11]Henan Normal Univ, Coll Life Sci, Xinxiang 453007, Henan, Peoples R China;[12]Univ Bonn, Inst Cellular & Mol Bot IZMB, Kirschallee 1, D-53115 Bonn, Germany;[13]Palacky Univ, Fac Sci, Ct Reg Hana Biotechnol & Agr Res, Olomouc 78301, Czech Republic;[14]Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Gene Res, Beijing 100871, Peoples R China;[15]China Agr Univ, Coll Biol Sci, Beijing 100193, Peoples R China;[16]Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China;[17]Univ North Texas, BioDiscovery Inst, Denton, TX 76203 USA;[18]Univ North Texas, Dept Biol Sci, Denton, TX 76203 USA

年份：2020

卷号：21

期号：1

外文期刊名：GENOME BIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000595383800001)】；

基金：The research reported in this publication was supported by the National Natural Science Foundation of China (31530084), the Fundamental Research Funds for the Central Universities (2019ZY28), the Program of Introducing Talents of Discipline to Universities (111 project, B13007), and the National Science Foundation for Young Scientists of China (Grant No. 32000558).

语种：英文

外文关键词：Tetracentron sinense; Vessel; Phylogenomic; Whole genome duplication; VND7; Resequencing; Genetic diversity

摘要：Background Tetracentron sinense is an endemic and endangered deciduous tree. It belongs to the Trochodendrales, one of four early diverging lineages of eudicots known for having vesselless secondary wood. Sequencing and resequencing of the T. sinense genome will help us understand eudicot evolution, the genetic basis of tracheary element development, and the genetic diversity of this relict species. Results Here, we report a chromosome-scale assembly of the T. sinense genome. We assemble the 1.07 Gb genome sequence into 24 chromosomes and annotate 32,690 protein-coding genes. Phylogenomic analyses verify that the Trochodendrales and core eudicots are sister lineages and showed that two whole-genome duplications occurred in the Trochodendrales approximately 82 and 59 million years ago. Synteny analyses suggest that the gamma event, resulting in paleohexaploidy, may have only happened in core eudicots. Interestingly, we find that vessel elements are present in T. sinense, which has two orthologs of AtVND7, the master regulator of vessel formation. T. sinense also has several key genes regulated by or regulating TsVND7.2 and their regulatory relationship resembles that in Arabidopsis thaliana. Resequencing and population genomics reveals high levels of genetic diversity of T. sinense and identifies four refugia in China. Conclusions The T. sinense genome provides a unique reference for inferring the early evolution of eudicots and the mechanisms underlying vessel element formation. Population genomics analysis of T. sinense reveals its genetic diversity and geographic structure with implications for conservation.