Phylogeography and historical demography of the arboreal pit viper Bothrops bilineatus (Serpentes, Crotalinae) reveal multiple connections between Amazonian and Atlantic rain forests

Autor(es)

Dal Vechio, Francisco ^[1] ; Prates, Ivan ^[2] ; Grazziotin, Felipe G. ^[3] ; Zaher, Hussam ^[4] ; Rodrigues, Miguel Trefaut ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Rua Matao, Trav 14, 321 Cidade Univ, CP 11461, BR-05508090 Sao Paulo, SP - Brazil

^[2] Natl Museum Nat Hist, Dept Vertebrate Zool, Smithsonian Inst, Washington, DC 20560 - USA

^[3] Inst Butantan, Lab Colecoes Zool, Sao Paulo, SP - Brazil

^[4] Univ Sao Paulo, Museu Zool, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Biogeography; v. 45, n. 10, p. 2415-2426, OCT 2018.
• Citações Web of Science: 4

Resumo

Aim To examine historical connections between rain forest habitats in the Neotropics based on the evolutionary history of the arboreal pit viper Bothrops bilineatus. Location Amazonia and Atlantic Forest in South America. Methods We inferred phylogenetic relationships within Bothrops and phylogeographic relationships within B. bilineatus using both concatenated and species tree approaches under a Bayesian framework based on four mitochondrial and five nuclear genes. We inferred demographic history within B. bilineatus based on tests of alternative historical scenarios using coalescent simulations and Approximate Bayesian Computation. Results Phylogenetic analyses recovered four major clades within Bothrops bilineatus. The best-fit historical scenario involved colonization of the Atlantic Forest by an Amazonian ancestor around 2 Mya, followed by range expansion in the Atlantic Forest. Subsequently, there was a colonization event into the Guiana Shield from an Atlantic Forest ancestor, dating back to around 0.3 Mya. Main conclusion The complex demographic history of Bothrops bilineatus shows multiple connection events between Amazonia and the Atlantic Forest in the last 2 million years. Two previously hypothesized forest bridges, southern and northeastern, may have been involved in range expansions in this species. These results shed light on the historical processes involved in the diversification of this venomous South American snake, providing information about the historical dynamism of forested habitats in the Neotropics. (AU)

• Processo FAPESP: 11/50146-6 - Filogeografia comparada, filogenia, modelagem paleoclimática e taxonomia de répteis e anfíbios neotropicais
• Beneficiário: Miguel Trefaut Urbano Rodrigues
• Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 11/50206-9 - Origem e evolução das serpentes e a sua diversificação na região neotropical: uma abordagem multidisciplinar
• Beneficiário: Hussam El Dine Zaher
• Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 03/10335-8 - Sistemática e evolução da herpetofauna neotropical
• Beneficiário: Miguel Trefaut Urbano Rodrigues
• Linha de fomento: Auxílio à Pesquisa - Temático