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Genomic insights into zokors' phylogeny and speciation in China.
Liu, Xi; Zhang, Shangzhe; Cai, Zhenyuan; Kuang, Zhuoran; Wan, Na; Wang, Yinjia; Mao, Leyan; An, Xuan; Li, Fang; Feng, Tuo; Liang, Xiaolong; Qiao, Zhenglei; Nevo, Eviatar; Li, Kexin.
Afiliação
  • Liu X; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Zhang S; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Cai Z; Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China.
  • Kuang Z; Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810001, China.
  • Wan N; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Wang Y; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Mao L; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • An X; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Li F; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Feng T; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Liang X; College of Life Sciences and Technology, Mudanjiang Normal University, Mudanjiang 157011, China.
  • Qiao Z; Shaanxi Key Laboratory of Animal Conservation, Shaanxi Institute of Zoology, Xi'an 710032, China.
  • Nevo E; State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Li K; College of Life Sciences and Technology, Mudanjiang Normal University, Mudanjiang 157011, China.
Proc Natl Acad Sci U S A ; 119(19): e2121819119, 2022 05 10.
Article em En | MEDLINE | ID: mdl-35512099
The phylogeny and speciation of subterranean zokors in China are unclear, as previous studies on morphology and limited molecular markers have generated conflicting results. This study unraveled the complex evolutionary history of eight zokor species in China based on de novo assembly at chromosome level and whole-genome sequencing of 23 populations. We found extensive phylogenetic discordances between nuclear and mitochondrial phylogenies, and different coalescent phylogenies, which could be explained by introgression and incomplete lineage sorting (ILS). The recent Qinghai-Tibet Plateau uplift (∼3.60 million y ago; Mya) drove Eospalax to speciate into clade A and clade B (∼3.22 Mya), and discordant phylogenies in this node were mainly attributed to introgression rather than ILS. Clade A rapidly diverged into three lineages due to geographical isolation and glaciation, while glaciation and C4 plant expansion contributed to the speciation of clade B. ILS contributed to the discordances of two rapidly radiated nodes rather than introgression. The effective population sizes (Ne's) of all the species of Eospalax were affected by three glaciations. Ancient polymorphisms and divergence hitchhiking contribute to genomic islands of all the species pairs. Positively selected genes putatively related to specific inhabitation adaptations were identified, such as heart development, neurogenesis, DNA repair, and immune response. Climate, geological tectonism, and C4 vegetation shaped the adaptation and speciation of zokors in China.
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Texto completo: 1 Bases de dados: MEDLINE Assunto principal: Roedores / Genoma Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: Asia Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Bases de dados: MEDLINE Assunto principal: Roedores / Genoma Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: Asia Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China