Authors
Miguel Vences, Joachim Kosuch, Mark‐Oliver Rödel, Stefan Lötters, Alan Channing, Frank Glaw, Wolfgang Böhme
Publication date
2004/4
Journal
Journal of Biogeography
Volume
31
Issue
4
Pages
593-601
Publisher
Blackwell Publishing
Description
Aim The Mascarene ridged frog, Ptychadena mascareniensis, is the only African amphibian species thought to occur on Madagascar and on the Seychelles and also Mascarene islands. We explored its phylogenetic relationships and intraspecific genetic differentiation to contribute to the understanding of transoceanic dispersal in amphibians.
Methods Fragments of the mitochondrial 16S rRNA gene were sequenced from specimens collected over most of the distribution area of P. mascareniensis, including populations from Madagascar, Mascarenes and Seychelles.
Results We identified five deeply divergent clades having pairwise divergences >5%, which probably all represent cryptic species in a P. mascareniensis complex. One of these seems to be restricted to Madagascar, the Mascarenes and the Seychelles. Sequences obtained from topotypic material (Réunion) were identical to the most widespread …
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Scholar articles
M Vences, J Kosuch, MO Rödel, S Lötters, A Channing… - Journal of Biogeography, 2004