Phylogeography of the heavily poached African common pangolin (Pholidota, Manis tricuspis) reveals six cryptic lineages as traceable signatures of Pleistocene diversification

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Gaubert, P (Autor) Outra; Njiokou, F (Autor) Outra; Ngua, G (Autor) Outra; Afiademanyo, K (Autor) Outra; Dufour, S (Autor) Outra; Malekani, J (Autor) Outra; Bi, SG (Autor) Outra; Tougard, C (Autor) Outra; Olayemi, A (Autor) Outra; Danquah, E (Autor) Outra; Djagoun, CAMS (Autor) Outra; Kaleme, P (Autor) Outra; Mololo, CN (Autor) Outra; Stanley, W (Autor) Outra; Luo, SJ (Autor) Outra; Agostinho Antunes (Autor) FCUP

Revista

Título: Molecular Ecology

Vol. 25

Páginas: 5975-5993

ISSN: 0962-1083

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 28 Citações

Scopus - 32 Citações

Outras Informações

ID Authenticus: P-00M-9KF

DOI: 10.1111/mec.13886

Abstract (EN): Knowledge on faunal diversification in African rainforests remains scarce. We used phylogeography to assess (i) the role of Pleistocene climatic oscillations in the diversification of the African common pangolin (Manis tricuspis) and (ii) the utility of our multilocus approach for taxonomic delineation and trade tracing of this heavily poached species. We sequenced 101 individuals for two mitochondrial DNA (mtDNA), two nuclear DNA and one Y-borne gene fragments (totalizing 2602 bp). We used a time-calibrated, Bayesian inference phylogenetic framework and conducted character-based, genetic and phylogenetic delineation of species hypotheses within African common pangolins. We identified six geographic lineages partitioned into western Africa, Ghana, the Dahomey Gap, western central Africa, Gabon and central Africa, all diverging during the Middle to Late Pleistocene. MtDNA (cytochrome b + control region) was the sole locus to provide diagnostic characters for each of the six lineages. Tree-based Bayesian delimitation methods using single-and multilocus approaches gave high support for 'species' level recognition of the six African common pangolin lineages. Although the diversification of African common pangolins occurred during Pleistocene cyclical glaciations, causative correlation with traditional rainforest refugia and riverine barriers in Africa was not straightforward. We conclude on the existence of six cryptic lineages within African common pangolins, which might be of major relevance for future conservation strategies. The high discriminative power of the mtDNA markers used in this study should allow an efficient molecular tracing of the regional origin of African common pangolin seizures.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 19