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The reanalysis of biogeography of the Asian tree frog, Rhacophorus (Anura: Rhacophoridae): geographic shifts and climatic change influenced the dispersal process and diversification.


ABSTRACT: Rapid uplifts of the Tibetan Plateau and climate change in Asia are thought to have profoundly modulated the diversification of most of the species distributed throughout Asia. The ranoid tree frog genus Rhacophorus, the largest genus in the Rhacophoridae, is widely distributed in Asia and especially speciose in the areas south and east of the Tibetan Plateau. Here, we infer phylogenetic relationships among species and estimate divergence times, asking whether the spatiotemporal characteristics of diversification within Rhacophorus were related to rapid uplifts of the Tibetan Plateau and concomitant climate change. Phylogenetic analysis recovered distinct lineage structures in Rhacophorus, which indicated a clear distribution pattern from Southeast Asia toward East Asia and India. Molecular dating suggests that the first split within the genus date back to the Middle Oligocene (approx. 30 Ma). The Rhacophorus lineage through time (LTT) showed that there were periods of increased speciation rate: 14-12 Ma and 10-4 Ma. In addition, ancestral area reconstructions supported Southeast Asia as the ancestral area of Rhacophorus. According to the results of molecular dating, ancestral area reconstructions and LTT we think the geographic shifts, the staged rapid rises of the Tibetan Plateau with parallel climatic changes and reinforcement of the Asian monsoons (15 Ma, 8 Ma and 4-3 Ma), possibly prompted a burst of diversification in Rhacophorus.

SUBMITTER: Pan T 

PROVIDER: S-EPMC5701547 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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The reanalysis of biogeography of the Asian tree frog, <i>Rhacophorus</i> (Anura: Rhacophoridae): geographic shifts and climatic change influenced the dispersal process and diversification.

Pan Tao T   Zhang Yanan Y   Wang Hui H   Wu Jun J   Kang Xing X   Qian Lifu L   Chen Jinyun J   Rao Dingqi D   Jiang Jianping J   Zhang Baowei B  

PeerJ 20171121


Rapid uplifts of the Tibetan Plateau and climate change in Asia are thought to have profoundly modulated the diversification of most of the species distributed throughout Asia. The ranoid tree frog genus <i>Rhacophorus</i>, the largest genus in the Rhacophoridae, is widely distributed in Asia and especially speciose in the areas south and east of the Tibetan Plateau. Here, we infer phylogenetic relationships among species and estimate divergence times, asking whether the spatiotemporal character  ...[more]

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