期刊
MOLECULAR PHYLOGENETICS AND EVOLUTION
卷 87, 期 -, 页码 80-90出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2015.02.018
关键词
Biogeography; Dispersal; Molecular clock; Bering Land Bridge; Turgai Strait; Mid Miocene Climatic Optimum
资金
- National Natural Science Foundation of China [31372173, 31411130190, 31101618, 31071894, 30911120031]
- Chinese Academy of Sciences [2013Y1SA0006]
- foundation of Ministry of Education Key Laboratory for Tropical Animal and Plant Ecology, Hainan Normal University [201501]
- Ministry of Science and Technology of the People's Republic of China [2005DKA21402]
- Russian Foundation of Basic Research [14-04-91151]
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, tRNA(Leu), 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. (C) 2015 Elsevier Inc. All rights reserved.
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