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Multilocus phylogeny suggests a distinct species status for the Nepal population of Assam macaques(Macaca assamensis):implications for evolution and conservation

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Zoological Research 2021年第1期42卷 3-13页

作者： Laxman Khanal Mukesh Kumar Chalise Peng-Fei Fan Randall CKyes Xue-Long Jiang Central Department of Zoology Institute of Science and TechnologyTribhuvan UniversityKathmandu 44613Nepal State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650203China Nepal Biodiversity Research Society(NEBORS) Lalitpur 23513Nepal School of Life Sciences Sun Yat-sen UniversityGuangzhouGuangdong 510275China Department of Psychology Global Healthand AnthropologyCenter for Global Field Studyand Washington National Primate Research CenterUniversity of WashingtonSeattle 98195USA

Phylogenetic relationships within the sinica-group of macaques based on morphological,behavioral,and molecular characteristics have remained *** Nepal population of Assam macaques(Macaca assamensis)(NPAM),the westernmost population of the species,is morphologically distinct but has never been used in phylogenetic ***,the phylogenetic relationship of NPAM with other congeners was tested using multiple mitochondrial and Ychromosomal *** divergence times and evolutionary genetic distances among macaques were also *** revealed two major mitochondrial DNA clades of macaques under the sinica-group:the first clade included ***,***,and eastern subspecies of Assam macaque(*** assamensis);the second clade included *** together with species from the eastern and central Himalaya,namely,***,***,and *** the second-clade species,NPAM was the first to diverge from the other members of the clade around 1.9 million years *** results revealed that NPAM is phylogenetically distinct from the eastern Assam macaques and closer to other species and hence may represent a separate *** of its phylogenetic distinctiveness,isolated distribution,and small population size,the Nepal population of sinica-group macaques warrants detailed taxonomic revision and high conservation priority.

关键词： Himalaya Macaques paraphyletic sinica-group Taxonomy

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Genomic divergence of Populus euphratica species complex

Genomic divergence of Populus euphratica species complex

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2018全国植物生物学大会

作者： Tao Ma Kun Wang Quanjun Hu Zhenxiang Xi Dongshi Wan Qian Wang Jianju Feng Dechun Jiang Hamid Ahani Richard J.Abbott Martin Lascoux Eviatar Nevo Jianquan Liu Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education College of Life SciencesSichuan University State Key Laboratory of Grassland Agro-ecosystem College of Life SciencesLanzhou University finstitute of Evolution University of Haifa

How genome divergence eventually leads to speciation is a topic of prime evolutionary *** islands of elevated divergence are frequently reported between diverging lineages,and their size is expected to increase with time and gene flow under the speciation-with-gene-flow ***,such islands can also result from divergent sorting of ancient polymorphisms,recent ecological selection regardless of gene flow,and/orrecurrent background selection and selective sweeps in lower combination *** is challenging to disentangle these nonexclusive alternatives,but here we attempt to do this in an analysis of what drove genomic divergence between four lineages comprising a species complex of desert poplar *** this complex we found that two morphologically delimited species,Populus euphratica and Populus pruinosa,were paraphyletic while the four lineages exhibited contrasting levels of gene flow and divergence times,providing a good system for testing hypotheses on the origin of divergence *** show that the size and number of genomic islands that distinguish lineages are not associated with either rate of recent gene flow or time of ***,they are most likely derived from divergent sorting of ancient polymorphisms and divergence *** found that highly diverged genes under lineage-specific selection and putatively involved in ecological and morphological divergence occur both within and outside these *** results highlight the need to incorporate demography,absolute divergence measurement,and gene flow rate to explain the formation of genomic islands and to identify potential genomic regions involved in speciation.

关键词： Speciation paraphyletic genome divergence natural selection

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