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Isolation and characterization of polymorphic microsatellite loci from pale-edged stingray,Telatrygon zugei(Elasmobranchii,Dasyatidae)

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Integrative Zoology 2019年第3期14卷 318-322页

作者： Fanglei SHI Hui WANG atsuko yamaguchi Baowei ZHANG Jie ZHANG Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina School of Life Science Anhui UniversityHefeiChina Faculty of Fisheries Nagasaki UniversityNagasakiJapan

INTRODUCTION Sharks,skates and rays originated 400 Ma,with a further radiation throughout every ocean,and play a vital role in maintaining the balance of marine ecosystems as top predators(Weigmann 2016).There are more than 1000 species of sharks,skates,rays and chimaeras in the world,244 of which are distributed in Chinese *** is,Chinese chondrichthyan fauna make up at least one-fifth of the world’s extant *** habitat degradation and overexploitation have caused sharp declines in many populations of elasmobranchs(White 2007;Dulvy et al.2017).Environmental changes and loss of oceanic apex predators due to overfishing could affect the migration routes and distribution of batoids(rays),resulting in community restructuring in the coastal ecosystem(yamaguchi et al.2005;Myers et al.2007).Despite the combination of known high biodiversity and heavy exploitation of elasmobranchs in China,there is little reliable information on the population genetics of many shark and ray ***ly,clarification of the population structure is crucial for conservation and management,especially for endangered elasmobranchs.

关键词： originated coastal branch

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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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