期刊
MOLECULAR PHYLOGENETICS AND EVOLUTION
卷 74, 期 -, 页码 29-37出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2014.01.016
关键词
Biogeography; Diversification; Islands; Lizard; Reptile
资金
- National Science Foundation (NSF) [EF-033492, DEB 0743491, DEB 0804115]
- Fulbright and Fulbright-Hayes Fellowships
- University of Kansas Biodiversity Institute Panorama Fund grant
- NSF [DEB 1011423]
- Division Of Environmental Biology
- Direct For Biological Sciences [0743491] Funding Source: National Science Foundation
We utilize robust geographical genetic sampling, a multilocus dataset, a new synthesis of numerous fossil calibration points, a time-calibrated phylogeny, and the Dispersal-Extinction-Cladogenesis model to test the prediction that widespread Southeast Asian water monitor species initially diversified on the Asian mainland and subsequently invaded the island archipelagos of the Philippines, Sundaland, and Wallacea. Our results strongly contradict these expectations and instead infer an initial water monitor radiation of range-restricted but highly divergent evolutionary lineages (now recognized as endemic species) in one archipelago around 3.6 mya, followed by an out-of-the-Philippines reinvasion of the mainland (2.2 mya), resulting in a few, widespread species that now inhabit most the islands of the Sunda Shelf and the Southeast Asian mainland as far north as Myanmar, as well as an out-of-the-Philippines invasion of Sulawesi (2.1 mya). Our analyses both confirm the importance of island archipelagos as drivers of diversification for mainland biodiversity and emphasize the global evolutionary significance and conservation priority of the Philippines for understanding processes of diversification in island archipelagos. (C) 2014 Elsevier Inc. All rights reserved.
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