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Insights into genetic variation and demographic history of sharpnose rays:examinations of three species of Telatrygon(Elasmobranchii,Dasyatidae)from the Indo-West Pacific

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Integrative Zoology 2022年第6期17卷 1063-1077页

作者： Jiwei QI Fanglei SHI Baowei ZHANG Xiao CHEN Jie XING Keisuke FURUMITSU Joel B.CORUSH Atsuko YAMAGUCHI Jie ZHANG Key Laboratory of Animal Ecology and conservation Biology Institute of ZoologyChinese Academy of SciencesBeijingChina School of Life Science Anhui UniversityHefeiAnhuiChina College of Marine Sciences South China Agricultural UniversityGuangzhouChina East China Sea Centre of Standard and Metrology SOAShanghaiChina Faculty of Fisheries Nagasaki UniversityNagasakiJapan Illinois Natural History Survey University of Illinois Champaign-UrbanaChampaignIllinoisUSA State Key Laboratory of Marine Resource Utilization in South China Sea Hainan UniversityHaikouChina

Coastal and demersal chondrichthyans(sharks,rays,and skates)are expected to exhibit high levels of genetic differentiation in areas of complex *** genetic studies investigating the extent to which demographic history shapes the genetic structure of theseﬁshes are ***,we combined mitochondrial DNA(Cytb and ND2)and 8 nuclear microsatellite loci from 244 individuals to examine the population genetic structure and demographic history of the 3 Indo-West Paciﬁc species of sharpnose rays(Telatrygon zugei,Telatrygon biasa,and Trygon crozieri).High levels of genetic variation both within and between species were identiﬁ*** analysis partitioned haplotypes into 2 lineages supporting divergence of *** from *** and *** during the ***,microsatellite-based clustering analyses identiﬁed 4 genetic groups(*** from Japan,*** from coastal China,*** from Gulf of Thailand,and *** from the Andaman Sea).Measurements of genetic differentiation also support these 4 ***,Pleistocene demographic expansions were examined in all genetic *** climate oscillations and current hydrologic cycles in the Indo-West Paciﬁc appear to coincide with the hypothesis regarding speciation and the observed demographic history trends of the sharpnose *** the species group has,until recently,been thought to be one species,these results are critical for deﬁning management units and guiding conservation efforts to preserve stingray biodiversity.

关键词： conservation biodiversity of stingray demographic history genetic variation Indo-West Paciﬁc Telatrygon

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