Artigo

Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)

In the Amazon basin, the distribution of many vertebrate species is delimited by large rivers, which are frequently considered as biogeographical barriers strongly related to the origin and maintenance of the elevated biodiversity found in the region. In this study, we conducted a phylogeographical...

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Autor principal: Maia, Gabriela Farias
Outros Autores: Lima, Albertina Pimental, Kaefer, Igor L.
Grau: Artigo
Idioma: English
Publicado em: Biological Journal of the Linnean Society 2020
Assuntos:
Bioacoustics
Biodiversity
Discriminant Analysis
Divergence
Evolution
Frog
Genotype
Phenotypic Plasticity
Phylogeography
Pleistocene
Population Structure
Amazon River
Brasil
Tapajos River
Anura
Epipedobates
Vertebrata
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/15367
id oai:repositorio:1-15367
recordtype dspace
spelling oai:repositorio:1-15367 Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea) Maia, Gabriela Farias Lima, Albertina Pimental Kaefer, Igor L. Bioacoustics Biodiversity Discriminant Analysis Divergence Evolution Frog Genotype Phenotypic Plasticity Phylogeography Pleistocene Population Structure Amazon River Brasil Tapajos River Anura Epipedobates Vertebrata In the Amazon basin, the distribution of many vertebrate species is delimited by large rivers, which are frequently considered as biogeographical barriers strongly related to the origin and maintenance of the elevated biodiversity found in the region. In this study, we conducted a phylogeographical investigation of the effect of the Tapajós River on multiple classes of genotypic and phenotypic characters in a species of frog, Allobates tapajos. We sampled populations throughout the known distributional range of the species on both margins of the middle and lower sections of the river. We obtained fragments of mitochondrial (16S) and nuclear (RAG1) genes, as well as external morphometric measurements and advertisement call acoustic parameters of 48 individuals from six localities (populations). While the nuclear marker was monomorphic across the geographic distribution of A. tapajos, the mitochondrial fragment revealed low genetic distances accompanied by high spatial structuring, with restricted and absent haplotype sharing between populations and opposite river margins, respectively. Cladogenetic events were concentrated in the Pleistocene epoch, the time period corresponding to the establishment of the Tapajós River drainage. Acoustic parameters diverged between river margins, a pattern not observed in relation to the morphological markers analysed. There was no correlation in the variability pattern of the different classes of characters between them or in relation to linear geographic distance among populations. In addition, discriminant function analyses correctly assigned most of the individuals to their populations based on phenotypic characters. Our results show that the distribution of the variability within A. tapajos is affected not only by the transposition of a historical riverine barrier but also mostly by an elevated genotypic and phenotypic structure at the population level. © 2017 The Linnean Society of London. 2020-05-08T20:34:56Z 2020-05-08T20:34:56Z 2017 Artigo https://repositorio.inpa.gov.br/handle/1/15367 10.1093/biolinnean/blw017 en Volume 121, Número 1, Pags. 95-108 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Biological Journal of the Linnean Society
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Bioacoustics
Biodiversity
Discriminant Analysis
Divergence
Evolution
Frog
Genotype
Phenotypic Plasticity
Phylogeography
Pleistocene
Population Structure
Amazon River
Brasil
Tapajos River
Anura
Epipedobates
Vertebrata
spellingShingle Bioacoustics
Biodiversity
Discriminant Analysis
Divergence
Evolution
Frog
Genotype
Phenotypic Plasticity
Phylogeography
Pleistocene
Population Structure
Amazon River
Brasil
Tapajos River
Anura
Epipedobates
Vertebrata
Maia, Gabriela Farias
Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)
topic_facet Bioacoustics
Biodiversity
Discriminant Analysis
Divergence
Evolution
Frog
Genotype
Phenotypic Plasticity
Phylogeography
Pleistocene
Population Structure
Amazon River
Brasil
Tapajos River
Anura
Epipedobates
Vertebrata
description In the Amazon basin, the distribution of many vertebrate species is delimited by large rivers, which are frequently considered as biogeographical barriers strongly related to the origin and maintenance of the elevated biodiversity found in the region. In this study, we conducted a phylogeographical investigation of the effect of the Tapajós River on multiple classes of genotypic and phenotypic characters in a species of frog, Allobates tapajos. We sampled populations throughout the known distributional range of the species on both margins of the middle and lower sections of the river. We obtained fragments of mitochondrial (16S) and nuclear (RAG1) genes, as well as external morphometric measurements and advertisement call acoustic parameters of 48 individuals from six localities (populations). While the nuclear marker was monomorphic across the geographic distribution of A. tapajos, the mitochondrial fragment revealed low genetic distances accompanied by high spatial structuring, with restricted and absent haplotype sharing between populations and opposite river margins, respectively. Cladogenetic events were concentrated in the Pleistocene epoch, the time period corresponding to the establishment of the Tapajós River drainage. Acoustic parameters diverged between river margins, a pattern not observed in relation to the morphological markers analysed. There was no correlation in the variability pattern of the different classes of characters between them or in relation to linear geographic distance among populations. In addition, discriminant function analyses correctly assigned most of the individuals to their populations based on phenotypic characters. Our results show that the distribution of the variability within A. tapajos is affected not only by the transposition of a historical riverine barrier but also mostly by an elevated genotypic and phenotypic structure at the population level. © 2017 The Linnean Society of London.
format Artigo
author Maia, Gabriela Farias
author2 Lima, Albertina Pimental
Kaefer, Igor L.
author2Str Lima, Albertina Pimental
Kaefer, Igor L.
title Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)
title_short Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)
title_full Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)
title_fullStr Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)
title_full_unstemmed Not just the river: Genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)
title_sort not just the river: genes, shapes, and sounds reveal population-structured diversification in the amazonian frog allobates tapajos (dendrobatoidea)
publisher Biological Journal of the Linnean Society
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/15367
_version_ 1787142086293716992
score 11.674684

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