Journal
JOURNAL OF BIOGEOGRAPHY
Volume 47, Issue 11, Pages 2472-2482Publisher
WILEY
DOI: 10.1111/jbi.13937
Keywords
anura; DNA-based species delimitation; historical biogeography; mitogenomics; Neogene; Neotropics; riverine barrier
Categories
Funding
- Investissement d'Avenir [ANR-10-LABX-25-01, ANR-10-LABX-0041, ANR-11-INBS-0001]
- French/Brazilian GUYAMAZON program action (Brazilian Fundacao de Amparo a Pesquisa do Estado do Amazonas-FAPEAM) [062.00962/2018]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2003/103358, 2011/50146-6]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (NSF-FAPESP Dimensions of Biodiversity Program) [BIOTA 2013/50297-0, NSF-DEB 1343578]
- SENESCYT (Arca de Noe Initiative)
- CNPq (Productivity Fellowship)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-CAPES (Visiting Professor Fellowship)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES) [88882.462010/2019-01]
- Ministry of Culture of the Czech Republic [DKRVO 2019-20023/6.VI.b, 00023272]
- Fonds voor Wetenschappelijk Onderzoek [FWO12A7614N, FWO12A7617N]
- School of Sciences, Universidad de los Andes [INV-2017-51-1432]
- Deutsche Forschungsgemeinschaft (DFG) [ER 589/1-1, ER 589/2-1]
Ask authors/readers for more resources
Aim We investigate the spatiotemporal context of the diversification ofAllobates, 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 932Allobatesspecimens 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 AmazonianAllobateslineages. 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 relatedAllobatesOTUs display an allopatric pattern of distribution, matching interfluves delimited by modern Amazonian rivers. Main Conclusions In western Amazonia, diversification ofAllobatesappears 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 ofAllobatesspecies and possibly promoted allopatric speciation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available