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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Evidence for recent gene flow between north-eastern and south-eastern Madagascan poison frogs from a phylogeography of the Mantella cowani group
Frontiers in Zoology, Volume 4, Article 1, Year 2007
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Description
Background. The genus Mantella, endemic poison frogs of Madagascar with 16 described species, are known in the field of international pet trade and entered under the CITES control for the last four years. The phylogeny and phylogeography of this genus have been recently subject of study for conservation purposes. Here we report on the studies of the phylogeography of the Mantella cowani group using a fragment of 453 bp of the mitochondrial cytochrome b gene from 195 individuals from 21 localities. This group is represented by five forms: M. cowani, a critically endangered species, a vulnerable species, M. haraldmeieri, and the non-threatened M. baroni, M. aff. baroni, and M. nigricans. Results. The Bayesian phylogenetic and haplotype network analyses revealed the presence of three separated haplotype clades: (1) M. baroni, M. aff. baroni, M. nigricans, and putative hybrids of M. cowani and M. baroni, (2) M. cowani and putative hybrids of M. cowani and M. baroni, and (3) M. haraldmeieri. The putative hybrids were collected from sites where M. cowani and M. baroni live in sympatry. Conclusion. These results suggest (a) a probable hybridization between M. cowani and M. baroni, (b) a lack of genetic differentiation between M. baroni/M. aff. baroni and M. nigricans, (c) evidence of recent gene-flow between the northern (M. nigricans), eastern (M. baroni), and south-eastern (M. aff. baroni) forms of distinct coloration, and (d) the existence of at least three units for conservation in the Mantella cowani group. © 2007 Rabemananjara et al; licensee BioMed Central Ltd.
Authors & Co-Authors
Rabemananjara, Falitiana C.E.
Netherlands, Amsterdam
Institute for Biodiversity and Ecosystem Dynamics - Amsterdam
Madagascar, Antananarivo
Université D'antananarivo
Chiari, Ylenia
Netherlands, Amsterdam
Zoological Museum Amsterdam
United States, New Haven
Yale University
Ramilijaona, Olga
Madagascar, Antananarivo
Université D'antananarivo
Vences, Miguel
Germany, Braunschweig
Technische Universität Braunschweig
Statistics
Citations: 33
Authors: 4
Affiliations: 5
Identifiers
Doi:
10.1186/1742-9994-4-1
e-ISSN:
17429994
Research Areas
Genetics And Genomics
Study Locations
Madagascar