Journal
INTERNATIONAL JOURNAL OF PRIMATOLOGY
Volume 27, Issue 3, Pages 699-712Publisher
SPRINGER
DOI: 10.1007/s10764-006-9044-1
Keywords
biogeography; dispersal-vicariance analysis; gibbons; Hylobatidae; phylogeny; Southeast Asia
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Phylogenetic relationships within Hylobatidae are controversial. Numerous studies based on molecular, morphological and behavioral characteristics have provided conflicting results. I reanalyzed published cytochrome b gene sequence data to provide a new estimate of gibbon phylogeny. My results indicate that Nomascus, Symphalangus and Hoolock are successively more closely related to Hylobates. Molecular clock analyses provide estimates of divergence times within Hylobatidae, indicating that the radiation dates to ca. 10.5 million years ago. Scientists have little understanding of the biogeographic history of gibbons, largely because of a sparse fossil record. I combined the estimate of gibbon phylogeny with distribution data in a dispersal-vicariance analysis and present a new scenario for the pattern and timing of gibbon radiation.
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