Strict consistency between genetic and topographic landscapes of the brown tree frog (Buergeria robusta) in Taiwan

[Display omitted] ► 564 brown tree frogs from 31 drainages were sequenced for phylogeographic analysis. ► The eastern and western populations showed a prominent genetic divergence. ► Genetic landscape presented extremely high congruence to the topography of Taiwan. ► Post-glacial expansion was stron...

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Bibliographic Details
Published in:Molecular phylogenetics and evolution 2012-01, Vol.62 (1), p.251-262
Main Authors: Lin, Hung-Du, Chen, Ying-Rong, Lin, Si-Min
Format: Article
Language:English
Subjects:
Amphibian Proteins - genetics
Animals
Anura
Anura - classification
Anura - genetics
Bayes Theorem
Buergeria robusta
Cytochromes b - genetics
Demographic history
frogs
Genetic landscape
Genetic Speciation
Genetic Variation
habitats
Haplotypes
Hylidae
Island species
islands
landscapes
Likelihood Functions
Magnolia
Mitochondrial Proteins - genetics
Models, Genetic
philopatry
Phylogeny
Phylogeography
Sequence Analysis, DNA
Subtropical species
Taiwan
topography
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Summary:[Display omitted] ► 564 brown tree frogs from 31 drainages were sequenced for phylogeographic analysis. ► The eastern and western populations showed a prominent genetic divergence. ► Genetic landscape presented extremely high congruence to the topography of Taiwan. ► Post-glacial expansion was strongly and consistently supported by different analyses. Taiwan presents an excellent opportunity to build a phylogeographic paradigm for fine-scaled differentiation occurring within short distances on an single island. Due to the limitation of habitat availability on the island, demographic histories of species in Taiwan were strongly influenced by glacial–interglacial cycles. Nevertheless, there are relatively few studies demonstrating such phylogeographic patterns for islands, especially in subtropical Asia. In this study, we aim to construct the genetic landscape of a philopatric stream frog Buergeria robusta by an intense and fine-scaled collection throughout the island. The deduced genetic landscape of B. robusta presented extremely high congruence with the actual topography of Taiwan. Two major lineages were found on the eastern and the western sides of Taiwan with a non-overlapping distribution, indicating the importance of the Central Mountain Range as the major biogeographic barrier. Both clades showed a strong and congruent tendency of demographic or distributional expansion in recent history based on different analyses. Population expansion of such a subtropical lowland species might be a result from a release of available habitat in post-glacial periods.
ISSN:1055-7903
1095-9513
DOI:10.1016/j.ympev.2011.09.022