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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Genetic Diversification of Adelphobates quinquevittatus (Anura: Dendrobatidae) and the Influence of Upper Madeira River Historical Dynamics

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Author(s):
de Medeiros, Larissa A. [1] ; Ribas, Camila C. [2] ; Lima, Albertina P. [1]
Total Authors: 3
Affiliation:
[1] Inst Nacl de Pesquisas da Amazonia, Programa Posgrad Ecol, Av Efigenio Sales 2239, Caixa Postal 478, BR-69011970 Manaus, AM - Brazil
[2] Inst Nacl de Pesquisas da Amazonia, Coordenacao Biodiversidade, Av Andre Araujo 2936, BR-69067375 Manaus, AM - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Evolutionary Biology; v. 48, n. 3, p. 269-285, SEP 2021.
Web of Science Citations: 0
Abstract

The effect of large Amazonian rivers as barriers to distribution of species and gene flow has been the subject of debate for more than a century. The Madeira River is the largest tributary of the Amazon River, with the region comprising its basin undergoing complex changes from the Pliocene through the Holocene. Accordingly, the evolution of its drainage seems to have been an important factor in the biological diversification of different taxa. We characterize the phylogeographic pattern of Adelphobates quinquevittatus, focusing on the role of the Madeira River and the environmental changes in the region, as potential barriers to gene flow. For this, we used sequences of two mitochondrial genes from 65 individuals sampled in 15 locations. We identify population structure partially related to the current Madeira River configuration. However the most upstream session does not represent a historical barrier, suggesting that may have attained its current geomorphological configuration recently. Divergence among clades began in the last 1 million years, coinciding with documented changes in this landscape, and may be related to river dynamics associated with the presence of open vegetation areas. This phylogeographic pattern supports the dynamism of the drainage, and the historical complexity of the upper Madeira River. (AU)

FAPESP's process: 12/50260-6 - Structure and evolution of the Amazonian biota and its environment: an integrative approach
Grantee:Lúcia Garcez Lohmann
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants