Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ympev.2017.04.007 http://hdl.handle.net/11449/174499 |
Resumo: | The Atlantic Forest (AF) of Brazil has long been recognized as a biodiversity conservation hotspot. Despite decades of studies the species inventory of this biome continues to increase with the discovery of cryptic diversity and the description of new species. Different diversification mechanisms have been proposed to explain the diversity in the region, including models of forest dynamics, barriers to gene flow and dispersal. Also, sea level change is thought to have influenced coastal diversification and isolated populations on continental islands. However, the timing and mode of diversification of insular populations in the AF region were rarely investigated. Here, we analyze the phylogeography and species diversity of the small-sized direct-developing frog Ischnocnema parva. These frogs are independent from water bodies but dependent on forest cover and high humidity, and provide good models to understand forest dynamics and insular diversification. Our analysis was based on DNA sequences for one mitochondrial and four nuclear genes of 71 samples from 18 localities including two islands, São Sebastião, municipality of Ilhabela, and Mar Virado, municipality of Ubatuba, both in the state of São Paulo. We use molecular taxonomic methods to show that I. parva is composed of six independently evolving lineages, with the nominal I. parva likely endemic to the type locality. The time-calibrated species tree shows that these lineages have diverged in the Pliocene and Pleistocene, suggesting the persistence of micro-refuges of forest in the AF. For the two insular populations we used approximate Bayesian computation to test different diversification hypotheses. Our findings support isolation with migration for São Sebastião population, with ∼1 Mya divergence time, and isolation without migration for Mar Virado population, with ∼13 Kya divergence time, suggesting a combination of different processes for diversification on AF islands. |
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Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of BrazilABCAmphibiaBrachycephalidaeCryptic diversityInsular diversificationSpecies delimitationThe Atlantic Forest (AF) of Brazil has long been recognized as a biodiversity conservation hotspot. Despite decades of studies the species inventory of this biome continues to increase with the discovery of cryptic diversity and the description of new species. Different diversification mechanisms have been proposed to explain the diversity in the region, including models of forest dynamics, barriers to gene flow and dispersal. Also, sea level change is thought to have influenced coastal diversification and isolated populations on continental islands. However, the timing and mode of diversification of insular populations in the AF region were rarely investigated. Here, we analyze the phylogeography and species diversity of the small-sized direct-developing frog Ischnocnema parva. These frogs are independent from water bodies but dependent on forest cover and high humidity, and provide good models to understand forest dynamics and insular diversification. Our analysis was based on DNA sequences for one mitochondrial and four nuclear genes of 71 samples from 18 localities including two islands, São Sebastião, municipality of Ilhabela, and Mar Virado, municipality of Ubatuba, both in the state of São Paulo. We use molecular taxonomic methods to show that I. parva is composed of six independently evolving lineages, with the nominal I. parva likely endemic to the type locality. The time-calibrated species tree shows that these lineages have diverged in the Pliocene and Pleistocene, suggesting the persistence of micro-refuges of forest in the AF. For the two insular populations we used approximate Bayesian computation to test different diversification hypotheses. Our findings support isolation with migration for São Sebastião population, with ∼1 Mya divergence time, and isolation without migration for Mar Virado population, with ∼13 Kya divergence time, suggesting a combination of different processes for diversification on AF islands.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Deutscher Akademischer AustauschdienstFundação de Amparo à Pesquisa do Estado da BahiaFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Katholischer Akademischer Ausländer-DienstAmerican Museum of Natural History Herpetology, Central Park West at 79th St.Zoological Institute Division of Evolutionary Biology University of Technology of Braunschweig, Mendelssohnstr. 4Departamento de Ensino Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso – IFMTUniversidade Estadual de Santa Cruz Departamento de Ciências Biológicas IlhéusUniversidade Federal de Mato Grosso do Sul Centro de Ciências Biológicas e da Saúde Laboratório de Zoologia Cidade UniversitáriaUniversidade Estadual Paulista (UNESP) Departamento de Zoologia Instituto de Biociências and Centro de Aquicultura (CAUNESP), Campus Rio ClaroUniversidade Estadual Paulista (UNESP) Departamento de Zoologia Instituto de Biociências and Centro de Aquicultura (CAUNESP), Campus Rio ClaroFAPESP: #2013/50741-7HerpetologyDivision of Evolutionary Biology University of Technology of BraunschweigCiência e Tecnologia de Mato Grosso – IFMTUniversidade Estadual de Santa CruzUniversidade Federal de Mato Grosso do Sul (UFMS)Universidade Estadual Paulista (Unesp)Gehara, MarceloBarth, AdrianeOliveira, Eliana Faria deCosta, Marco AntonioHaddad, Célio Fernando Baptista [UNESP]Vences, Miguel2018-12-11T17:11:26Z2018-12-11T17:11:26Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article68-78application/pdfhttp://dx.doi.org/10.1016/j.ympev.2017.04.007Molecular Phylogenetics and Evolution, v. 112, p. 68-78.1095-95131055-7903http://hdl.handle.net/11449/17449910.1016/j.ympev.2017.04.0072-s2.0-850183399262-s2.0-85018339926.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMolecular Phylogenetics and Evolution2,0882,088info:eu-repo/semantics/openAccess2023-12-25T06:25:55Zoai:repositorio.unesp.br:11449/174499Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-25T06:25:55Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
title |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
spellingShingle |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil Gehara, Marcelo ABC Amphibia Brachycephalidae Cryptic diversity Insular diversification Species delimitation |
title_short |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
title_full |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
title_fullStr |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
title_full_unstemmed |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
title_sort |
Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil |
author |
Gehara, Marcelo |
author_facet |
Gehara, Marcelo Barth, Adriane Oliveira, Eliana Faria de Costa, Marco Antonio Haddad, Célio Fernando Baptista [UNESP] Vences, Miguel |
author_role |
author |
author2 |
Barth, Adriane Oliveira, Eliana Faria de Costa, Marco Antonio Haddad, Célio Fernando Baptista [UNESP] Vences, Miguel |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Herpetology Division of Evolutionary Biology University of Technology of Braunschweig Ciência e Tecnologia de Mato Grosso – IFMT Universidade Estadual de Santa Cruz Universidade Federal de Mato Grosso do Sul (UFMS) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Gehara, Marcelo Barth, Adriane Oliveira, Eliana Faria de Costa, Marco Antonio Haddad, Célio Fernando Baptista [UNESP] Vences, Miguel |
dc.subject.por.fl_str_mv |
ABC Amphibia Brachycephalidae Cryptic diversity Insular diversification Species delimitation |
topic |
ABC Amphibia Brachycephalidae Cryptic diversity Insular diversification Species delimitation |
description |
The Atlantic Forest (AF) of Brazil has long been recognized as a biodiversity conservation hotspot. Despite decades of studies the species inventory of this biome continues to increase with the discovery of cryptic diversity and the description of new species. Different diversification mechanisms have been proposed to explain the diversity in the region, including models of forest dynamics, barriers to gene flow and dispersal. Also, sea level change is thought to have influenced coastal diversification and isolated populations on continental islands. However, the timing and mode of diversification of insular populations in the AF region were rarely investigated. Here, we analyze the phylogeography and species diversity of the small-sized direct-developing frog Ischnocnema parva. These frogs are independent from water bodies but dependent on forest cover and high humidity, and provide good models to understand forest dynamics and insular diversification. Our analysis was based on DNA sequences for one mitochondrial and four nuclear genes of 71 samples from 18 localities including two islands, São Sebastião, municipality of Ilhabela, and Mar Virado, municipality of Ubatuba, both in the state of São Paulo. We use molecular taxonomic methods to show that I. parva is composed of six independently evolving lineages, with the nominal I. parva likely endemic to the type locality. The time-calibrated species tree shows that these lineages have diverged in the Pliocene and Pleistocene, suggesting the persistence of micro-refuges of forest in the AF. For the two insular populations we used approximate Bayesian computation to test different diversification hypotheses. Our findings support isolation with migration for São Sebastião population, with ∼1 Mya divergence time, and isolation without migration for Mar Virado population, with ∼13 Kya divergence time, suggesting a combination of different processes for diversification on AF islands. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-01 2018-12-11T17:11:26Z 2018-12-11T17:11:26Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.ympev.2017.04.007 Molecular Phylogenetics and Evolution, v. 112, p. 68-78. 1095-9513 1055-7903 http://hdl.handle.net/11449/174499 10.1016/j.ympev.2017.04.007 2-s2.0-85018339926 2-s2.0-85018339926.pdf |
url |
http://dx.doi.org/10.1016/j.ympev.2017.04.007 http://hdl.handle.net/11449/174499 |
identifier_str_mv |
Molecular Phylogenetics and Evolution, v. 112, p. 68-78. 1095-9513 1055-7903 10.1016/j.ympev.2017.04.007 2-s2.0-85018339926 2-s2.0-85018339926.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Molecular Phylogenetics and Evolution 2,088 2,088 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
68-78 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797790108647161856 |