Please use this identifier to cite or link to this item:
Title: Historical biogeography identifies a possible role of Miocene wetlands in the diversification of the Amazonian rocket frogs (Aromobatidae: Allobates)
Authors: Fouquet, Antoine
Réjaud, Alexandre
Rodrigues, Miguel Trefaut
Crawford, Andrew J.
Chaparro, Juan Carlos
Glaw, Frank
Gagliardi-Urrutia, Giussepe
Moravec, Jiří
la Riva, Ignacio J. de
Perez, Pedro
Lima, Albertina Pimental
Werneck, F. P.
Hrbek, Tomas
Ron, Santiago R.
Ernst, Raffael
Kok, Philippe J.R.
Driskell, Amy C.
Chave, Jérôme
Keywords: Anura
DNA-based species delimitation
historical biogeography
Riverine Barrier
Issue Date: 2020
metadata.dc.publisher.journal: Journal of Biogeography
Abstract: Aim We investigate the spatiotemporal context of the diversification of Allobates, a widespread genus of Amazonian frogs with high species diversity particularly in western Amazonia. We tested if that diversity originated in situ or through repeated dispersals from other Amazonian areas and if this diversification took place during or after the Pebas system, a vast lacustrine system occupying most western Amazonia between 23 and 10 million years ago (Mya). Location Amazonia. Taxon Allobates (Anura: Aromobatidae). Methods We gathered a spatially and taxonomically extensive sampling of mitochondrial DNA sequences from 932 Allobates specimens to delimit Operational Taxonomic Units (OTUs). Complete mitogenomes of these OTUs were assembled to reconstruct a time‐calibrated phylogeny used to infer the historical and spatial origin of the Amazonian Allobates lineages. Results Phylogenetic analyses and ancestral area reconstruction suggested that most of the western Amazonian lineages resulted from in situ diversification and that these events occurred between the inferred origin of the genus (25 Mya) and 10 Mya, with a possible peak between 14 and 10 Mya. Dispersal among areas mostly occurred from western Amazonia towards the Brazilian and the Guiana Shields. Closely related Allobates OTUs display an allopatric pattern of distribution, matching interfluves delimited by modern Amazonian rivers. Main Conclusions In western Amazonia, diversification of Allobates appears to have been simultaneous with the last stages of the Pebas system (14–10 Mya). Subsequently (within the last 10 Mya), modern Amazonian river courses shaped the distribution pattern of Allobates species and possibly promoted allopatric speciation.
metadata.dc.identifier.doi: 10.1111/jbi.13937
Appears in Collections:Artigos

Files in This Item:
File Description SizeFormat 
artigo_inpa.pdf4,82 MBAdobe PDFThumbnail

This item is licensed under a Creative Commons License Creative Commons