The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)

Autores
Tunez, Juan Ignacio; Cappozzo, Humberto Luis; Pavés, H.; Albareda, D. A.; Cassini, Marcelo Hernan
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Analysing a 529 bp segment of the mitochondrial control region, we evaluated the role that Pleistocene glaciations may have had in shaping the genetic structure currently found in the two southernmost breeding areas of the South American fur seal, Arctocephalus australis. Additionally, we analysed if these two breedingareas correspond to different conservation units. We found 26 haplotypes in 54 individuals. Colonies from the Uruguayan breeding area did not show significant differences in haplotype frequencies, which suggest that they are remnants of a single ancient gene pool. The genealogical relationship between haplotypes revealed a pattern of phylogeographic structure with two main haplogroups corresponding to the different breeding areas. The analysis of molecular variance and the estimate of population divergence time also indicated significant genetic differences and a long period of isolation between Atlantic and Pacific colonies, suggesting that these breeding areas would correspond to different conservation units.
Fil: Tunez, Juan Ignacio. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Pavés, H.. Universidad Austral de Chile; Chile
Fil: Albareda, D. A.. Jardín Zoológico y Acuario de Buenos Aires; Argentina
Fil: Cassini, Marcelo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina
Materia
Arctocephalus Australis
Population Structure
Pleistocene Glaciations
Mtdna Control Region
Conservation Units
Southern South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24778
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)Tunez, Juan IgnacioCappozzo, Humberto LuisPavés, H.Albareda, D. A.Cassini, Marcelo HernanArctocephalus AustralisPopulation StructurePleistocene GlaciationsMtdna Control RegionConservation UnitsSouthern South Americahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Analysing a 529 bp segment of the mitochondrial control region, we evaluated the role that Pleistocene glaciations may have had in shaping the genetic structure currently found in the two southernmost breeding areas of the South American fur seal, Arctocephalus australis. Additionally, we analysed if these two breedingareas correspond to different conservation units. We found 26 haplotypes in 54 individuals. Colonies from the Uruguayan breeding area did not show significant differences in haplotype frequencies, which suggest that they are remnants of a single ancient gene pool. The genealogical relationship between haplotypes revealed a pattern of phylogeographic structure with two main haplogroups corresponding to the different breeding areas. The analysis of molecular variance and the estimate of population divergence time also indicated significant genetic differences and a long period of isolation between Atlantic and Pacific colonies, suggesting that these breeding areas would correspond to different conservation units.Fil: Tunez, Juan Ignacio. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Pavés, H.. Universidad Austral de Chile; ChileFil: Albareda, D. A.. Jardín Zoológico y Acuario de Buenos Aires; ArgentinaFil: Cassini, Marcelo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; ArgentinaTaylor & Francis2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24778Tunez, Juan Ignacio; Cappozzo, Humberto Luis; Pavés, H.; Albareda, D. A.; Cassini, Marcelo Hernan; The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis); Taylor & Francis; New Zealand Journal Of Marine And Freshwater Research; 47; 2; 6-2013; 139-1520028-8330CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/00288330.2012.753463info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/00288330.2012.753463info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:26:38Zoai:ri.conicet.gov.ar:11336/24778instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:26:38.599CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
title The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
spellingShingle The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
Tunez, Juan Ignacio
Arctocephalus Australis
Population Structure
Pleistocene Glaciations
Mtdna Control Region
Conservation Units
Southern South America
title_short The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
title_full The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
title_fullStr The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
title_full_unstemmed The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
title_sort The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis)
dc.creator.none.fl_str_mv Tunez, Juan Ignacio
Cappozzo, Humberto Luis
Pavés, H.
Albareda, D. A.
Cassini, Marcelo Hernan
author Tunez, Juan Ignacio
author_facet Tunez, Juan Ignacio
Cappozzo, Humberto Luis
Pavés, H.
Albareda, D. A.
Cassini, Marcelo Hernan
author_role author
author2 Cappozzo, Humberto Luis
Pavés, H.
Albareda, D. A.
Cassini, Marcelo Hernan
author2_role author
author
author
author
dc.subject.none.fl_str_mv Arctocephalus Australis
Population Structure
Pleistocene Glaciations
Mtdna Control Region
Conservation Units
Southern South America
topic Arctocephalus Australis
Population Structure
Pleistocene Glaciations
Mtdna Control Region
Conservation Units
Southern South America
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Analysing a 529 bp segment of the mitochondrial control region, we evaluated the role that Pleistocene glaciations may have had in shaping the genetic structure currently found in the two southernmost breeding areas of the South American fur seal, Arctocephalus australis. Additionally, we analysed if these two breedingareas correspond to different conservation units. We found 26 haplotypes in 54 individuals. Colonies from the Uruguayan breeding area did not show significant differences in haplotype frequencies, which suggest that they are remnants of a single ancient gene pool. The genealogical relationship between haplotypes revealed a pattern of phylogeographic structure with two main haplogroups corresponding to the different breeding areas. The analysis of molecular variance and the estimate of population divergence time also indicated significant genetic differences and a long period of isolation between Atlantic and Pacific colonies, suggesting that these breeding areas would correspond to different conservation units.
Fil: Tunez, Juan Ignacio. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Pavés, H.. Universidad Austral de Chile; Chile
Fil: Albareda, D. A.. Jardín Zoológico y Acuario de Buenos Aires; Argentina
Fil: Cassini, Marcelo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina
description Analysing a 529 bp segment of the mitochondrial control region, we evaluated the role that Pleistocene glaciations may have had in shaping the genetic structure currently found in the two southernmost breeding areas of the South American fur seal, Arctocephalus australis. Additionally, we analysed if these two breedingareas correspond to different conservation units. We found 26 haplotypes in 54 individuals. Colonies from the Uruguayan breeding area did not show significant differences in haplotype frequencies, which suggest that they are remnants of a single ancient gene pool. The genealogical relationship between haplotypes revealed a pattern of phylogeographic structure with two main haplogroups corresponding to the different breeding areas. The analysis of molecular variance and the estimate of population divergence time also indicated significant genetic differences and a long period of isolation between Atlantic and Pacific colonies, suggesting that these breeding areas would correspond to different conservation units.
publishDate 2013
dc.date.none.fl_str_mv 2013-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24778
Tunez, Juan Ignacio; Cappozzo, Humberto Luis; Pavés, H.; Albareda, D. A.; Cassini, Marcelo Hernan; The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis); Taylor & Francis; New Zealand Journal Of Marine And Freshwater Research; 47; 2; 6-2013; 139-152
0028-8330
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24778
identifier_str_mv Tunez, Juan Ignacio; Cappozzo, Humberto Luis; Pavés, H.; Albareda, D. A.; Cassini, Marcelo Hernan; The role of Pleistocene glaciations in shaping the genetic structure of South American fur seals (Arctocephalus australis); Taylor & Francis; New Zealand Journal Of Marine And Freshwater Research; 47; 2; 6-2013; 139-152
0028-8330
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/00288330.2012.753463
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/00288330.2012.753463
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082713749028864
score 13.22299

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