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Mitogenome and phylogenetic analyses support rapid diversification among species groups of small-eared shrews genus Cryptotis(Mammalia:Eulipotyphla:Soricidae)

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Zoological Research 2021年第6期42卷 739-745页

作者： Kai He Xing Chen Yin-Bin Qiu Zhu Liu Wen-Zhi Wang Neal Woodman Jesus E.Maldonado Xinghua Pan Department of Biochemistry and Molecular Biology School of Basic Medical Sciencesand Guangdong Provincial Key aboratory of Single Cell Technology and ApplicationSouthern Medical UniversityGuangzhouGuangdong 510515China Wildlife Forensic Science Service KunmingYunnan 650223China School of Zoology Faculty of Life sciencesTel Aviv UniversityTel Aviv 6997801 Israel College of Life Science and Technology Mudanjiang Normal UniversityMudanjiangHeilongjiang 157012China Guizhou Academy of Testing and Analysis GuiyangGuizhou 550002China U.S.Geological Survey Eastern Ecological Science CenterLaurelMD 20708USA Division of Mammals Department of Vertebrate ZoologyNational Museum of Natural HistorySmithsonian InstitutionWashingtonDC 20560USA Center for Conservation Genomics Smithsonian Conservation Biology InstituteWashingtonDC 20008USA

The small-eared shrew genus Cryptotis is the third largest in the family Soricidae and occurs in North,Central,and northern South *** Mexico and Central and South America,most species inhabit geographically isolated moist,montane habitats at middle and high elevations in a typical sky-island *** 49 recognized species have been partitioned into as many as six species groups based on morphological and molecular phylogenetic *** relationships among these species groups are poorly resolved,and their evolutionary histories,including migration patterns and locomotor adaptations,remain ***,we provide a new phylogeny incorporating complete mitochondrial genomes(mitogenomes)and supermatrix *** compared different evolutionary scenarios using approximately unbiased(AU),Kishino-Hasegawa(KH),and Shimodaira-Hasegawa(SH)statistical *** phylogenetic hypothesis based on mitogenomes revealed novel relationships supporting a basal position for the Cryptotis parvusgroup in the genus,and a close relationship between *** and one clade of the *** former relationship is consistent with the least derived humerus morphology and northern distribution of the *** latter relationship i mplies multiple migrations between Central and South *** lack of fine resolution for the species group relationships may be due partly to the lack of taxon *** contrast,multi-approach analyses suggest that the unresolved relationships may be a result of rapid diversification during the early stages of Cryptotis evolution.

关键词： Cryptotis capture hybridization Hard polytomy Mitochondrial genome Rapid diversification Soricidae

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