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Amphibians crossing the Bering Land Bridge: Evidence from holarctic treefrogs (Hyla, Hylidae, Anura)

Li, J. T. et al.

Molecular phylogenetics and evolution. VOL 87, ; 2015, 80-90 -- Elsevier Science B.V., Amsterdam Part; (pages 80-90) -- 2015

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  • Title:
    Amphibians crossing the Bering Land Bridge: Evidence from holarctic treefrogs (Hyla, Hylidae, Anura)
  • Author: Li, J. T.;
    Wang, J. S.;
    Nian, H. H.;
    Litvinchuk, S. N.;
    Wang, J.;
    Li, Y.;
    Rao, D. Q.;
    Klaus, S.
  • Found In: Molecular phylogenetics and evolution. VOL 87, ; 2015, 80-90
  • Journal Title: Molecular phylogenetics and evolution.
  • Subjects: Life Sciences; Biotechnology; Pharmaceutical Chemistry; LCC: QH367; Dewey: 576.88
  • Publication Details: Elsevier Science B.V., Amsterdam
  • Language: English
  • Abstract: Based on an updated, time-calibrated phylogeny and applying biogeographical model testing and diversification analysis, we re-examined systematics and biogeography of the Holarctic treefrog genus Hyla with a focus on the East Asian species. We analyzed four mitochondrial genes (12S and 16S rRNA, tRNALeu, ND1) and one nuclear gene (POMC) for 192 samples representing 30 species of Hyla. Based on our results we suggest that H. ussuriensis is a synonym of H. japonica. Specimens from Sakhalin and Kunashir Islands might represent a cryptic species within H. japonica. We confirm earlier hypotheses that the genus Hyla originated during the Eocene to Early Oligocene and that Eurasian species originated from two independent dispersal events from North America via the Bering Land Bridge. Middle Eocene to Oligocene dispersal gave rise to the most recent common ancestor of the West Palearctic H. arborea-group and the East Palearctic, newly defined, H. chinensis-group. The Northeast Asian H. japonica-group resulted from a second wave of colonization from the Nearctic. A trans-Atlantic dispersal route could be excluded. Dispersal of the H. arborea-group to the western Palearctic coincides with the closure of the Turgai Strait at the end of the Oligocene. Diversification of Hyla decreased at the end of the Middle Miocene, possibly coinciding with the end of the Mid Miocene Climatic Optimum and the advent of cooler and drier climates in the Northern Hemisphere.
  • Identifier: Journal ISSN: 1055-7903
  • Publication Date: 2015
  • Physical Description: Physical
  • Accrual Information: Monthly
  • Shelfmark(s): 5900.819800
  • UIN: ETOCRN369522540

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