文献类型：期刊文献

英文题名：The poplar pangenome provides insights into the evolutionary history of the genus

作者：Zhang, Bingyu[1,2] Zhu, Wenxu[1,2] Diao, Shu[1,2] Wu, Xiaojuan[1,2] Lu, Junqian[1,2] Ding, ChangJun[1,2] Su, Xiaohua[1,2]

第一作者：张冰玉

通信作者：Zhang, BY[1];Su, XH[1];Zhang, BY[2];Su, XH[2]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat State Forestry &, Beijing 100091, Peoples R China

年份：2019

卷号：2

期号：1

外文期刊名：COMMUNICATIONS BIOLOGY

收录：;Scopus(收录号：2-s2.0-85071185142);WOS:【SCI-EXPANDED(收录号:WOS:000472461200004)】；

基金：The authors gratefully acknowledge the National Key Program on Transgenic Research (2018ZX08021001) and the "863" Project (2013AA102703) for financial support.

语种：英文

摘要：The genus Populus comprises a complex amalgam of ancient and modern species that has become a prime model for evolutionary and taxonomic studies. Here we sequenced the genomes of 10 species from five sections of the genus Populus, identified 71 million genomic variations, and observed new correlations between the single-nucleotide polymorphism-structural variation (SNP-SV) density and indel-SV density to complement the SNP-indel density correlation reported in mammals. Disease resistance genes (R genes) with heterozygous loss-of-function (LOF) were significantly enriched in the 10 species, which increased the diversity of poplar R genes during evolution. Heterozygous LOF mutations in the self-incompatibility genes were closely related to the self-fertilization of poplar, suggestive of genomic control of self-fertilization in dioecious plants. The phylogenetic genome-wide SNPs tree also showed possible ancient hybridization among species in sections Tacamahaca, Aigeiros, and Leucoides. The pangenome resource also provided information for poplar genetics and breeding.