Your browser doesn't support javascript.
loading
Phylogeography and population genetics of Schizothorax o'connori: strong subdivision in the Yarlung Tsangpo River inferred from mtDNA and microsatellite markers.
Guo, Xiang-Zhao; Zhang, Gui-Rong; Wei, Kai-Jian; Yan, Ruo-Jin; Ji, Wei; Yang, Rui-Bin; Wei, Qi-Wei; Gardner, Jonathan P A.
Afiliação
  • Guo XZ; Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, P. R. China.
  • Zhang GR; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan 430070, P. R. China.
  • Wei KJ; Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, P. R. China.
  • Yan RJ; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan 430070, P. R. China.
  • Ji W; Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, P. R. China.
  • Yang RB; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan 430070, P. R. China.
  • Wei QW; Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, P. R. China.
  • Gardner JP; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan 430070, P. R. China.
Sci Rep ; 6: 29821, 2016 07 18.
Article em En | MEDLINE | ID: mdl-27425185
ABSTRACT
The Qinghai-Tibet Plateau (QTP) is a biodiversity hotspot, resulting from its geological history, contemporary environment and isolation. Uplift of the QTP and Quaternary climatic oscillations are hypothesised to have influenced the genetic diversity, population structure and dynamics of all QTP endemic species. In this study, we tested this hypothesis by assaying variation at two mitochondrial DNA regions (cytochrome b and control region) and at 12 microsatellite loci of seven populations of the endemic fish, Schizothorax o'connori from the Yarlung Tsangpo River (YLTR) on the QTP. Analyses revealed one group of six populations to the west, above the Yarlung Tsangpo Grand Canyon (YTGC), and a second group to the east below the YTGC. Estimates of the timing of this east-west split indicate that these groups represent evolutionarily significant units that have evolved separately and rapidly in the middle Pleistocene, at the time of the Kunlun-Huanghe Movement A Phase and the Naynayxungla glaciation. Population dynamic analyses indicate that S. o'connori experienced a pronounced late Pleistocene expansion during the last interglacial period. The results of this study support the hypotheses that the QTP uplift and Quaternary climatic oscillations have played important roles in shaping the population genetics and dynamics of this endemic fish.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: DNA Mitocondrial / Cyprinidae / Repetições de Microssatélites Limite: Animals País/Região como assunto: Asia Idioma: En Revista: Sci Rep Ano de publicação: 2016 Tipo de documento: Article País de publicação: ENGLAND / ESCOCIA / GB / GREAT BRITAIN / INGLATERRA / REINO UNIDO / SCOTLAND / UK / UNITED KINGDOM

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: DNA Mitocondrial / Cyprinidae / Repetições de Microssatélites Limite: Animals País/Região como assunto: Asia Idioma: En Revista: Sci Rep Ano de publicação: 2016 Tipo de documento: Article País de publicação: ENGLAND / ESCOCIA / GB / GREAT BRITAIN / INGLATERRA / REINO UNIDO / SCOTLAND / UK / UNITED KINGDOM