The role of river drainages in shaping the genetic structure of capybara populations

Autores
Byrne, María Soledad; Quintana, Ruben Dario; Bolkovic, María Luisa; Cassini, Marcelo Hernan; Tunez, Juan Ignacio
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The capybara, Hydrochoerus hydrochaeris, is an herbivorous rodent widely distributed throughout most of South American wetlands that lives closely associated with aquatic environments. In this work, we studied the genetic structure of the capybara throughout part of its geographic range in Argentina using a DNA fragment of the mitochondrial control region. Haplotypes obtained were compared with those available for populations from Paraguay and Venezuela. We found 22 haplotypes in 303 individuals. Hierarchical AMOVAs were performed to evaluate the role of river drainages in shaping the genetic structure of capybara populations at the regional and basin scales. In addition, two landscape genetic models, isolation by distance and isolation by resistance, were used to test whether genetic distance was associated with Euclidean distance (i.e. isolation by distance) or river corridor distance (i.e. isolation by resistance) at the basin scale. At the regional scale, the results of the AMOVA grouping populations by mayor river basins showed significant differences between them. At the basin scale, we also found significant differences between sub-basins in Paraguay, together with a significant correlation between genetic and river corridor distance. For Argentina and Venezuela, results were not significant. These results suggest that in Paraguay, the current genetic structure of capybaras is associated with the lack of dispersion corridors through permanent rivers. In contrast, limited structuring in Argentina and Venezuela is likely the result of periodic flooding facilitating dispersion.
Fil: Byrne, María Soledad. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.
Fil: Quintana, Ruben Dario. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina.
Fil: Bolkovic, María Luisa. Secretaría de Ambiente y Desarrallo Sustentable de la Nación; Argentina
Fil: Cassini, Marcelo Hernan. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.
Fil: Tunez, Juan Ignacio. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.
Fuente
Genetica 2015 143(6) 645-656
https://doi.org/10.1007/s10709-015-9862-1
Materia
HYDROCHOERUS HYDROCHAERIS
MITOCHONDRIAL DNA
RIVER BASINS
SOUTH AMERICA
CIENCIAS BIOLÓGICAS
CIENCIAS NATURALES Y EXACTAS
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
Repositorio Institucional (UNSAM)
Institución
Universidad Nacional de General San Martín
OAI Identificador
oai:ri.unsam.edu.ar:123456789/981
Acceder
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oai_identifier_str oai:ri.unsam.edu.ar:123456789/981
network_acronym_str RIUNSAM
repository_id_str s
network_name_str Repositorio Institucional (UNSAM)
spelling The role of river drainages in shaping the genetic structure of capybara populationsByrne, María SoledadQuintana, Ruben DarioBolkovic, María LuisaCassini, Marcelo HernanTunez, Juan IgnacioHYDROCHOERUS HYDROCHAERISMITOCHONDRIAL DNARIVER BASINSSOUTH AMERICACIENCIAS BIOLÓGICASCIENCIAS NATURALES Y EXACTASThe capybara, Hydrochoerus hydrochaeris, is an herbivorous rodent widely distributed throughout most of South American wetlands that lives closely associated with aquatic environments. In this work, we studied the genetic structure of the capybara throughout part of its geographic range in Argentina using a DNA fragment of the mitochondrial control region. Haplotypes obtained were compared with those available for populations from Paraguay and Venezuela. We found 22 haplotypes in 303 individuals. Hierarchical AMOVAs were performed to evaluate the role of river drainages in shaping the genetic structure of capybara populations at the regional and basin scales. In addition, two landscape genetic models, isolation by distance and isolation by resistance, were used to test whether genetic distance was associated with Euclidean distance (i.e. isolation by distance) or river corridor distance (i.e. isolation by resistance) at the basin scale. At the regional scale, the results of the AMOVA grouping populations by mayor river basins showed significant differences between them. At the basin scale, we also found significant differences between sub-basins in Paraguay, together with a significant correlation between genetic and river corridor distance. For Argentina and Venezuela, results were not significant. These results suggest that in Paraguay, the current genetic structure of capybaras is associated with the lack of dispersion corridors through permanent rivers. In contrast, limited structuring in Argentina and Venezuela is likely the result of periodic flooding facilitating dispersion.Fil: Byrne, María Soledad. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.Fil: Quintana, Ruben Dario. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina.Fil: Bolkovic, María Luisa. Secretaría de Ambiente y Desarrallo Sustentable de la Nación; ArgentinaFil: Cassini, Marcelo Hernan. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.Fil: Tunez, Juan Ignacio. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.Springer2015-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfpp. 645-656application/pdfByrne, M. S.; Quintana, R. D.; Bolkovic, M. L.; Cassini, M. H.; Tunez, J. I. (sep 2015). The role of river drainages in shaping the genetic structure of capybara populations; Springer; Genetica; 143 (6) 645-656.0016-6707Genetica 2015 143(6) 645-656https://ri.unsam.edu.ar/handle/123456789/981Genetica 2015 143(6) 645-656https://doi.org/10.1007/s10709-015-9862-1reponame:Repositorio Institucional (UNSAM)instname:Universidad Nacional de General San Martínenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5)2025-10-16T10:11:39Zoai:ri.unsam.edu.ar:123456789/981instacron:UNSAMInstitucionalhttp://ri.unsam.edu.arUniversidad públicaNo correspondehttp://ri.unsam.edu.ar/oai/lpastran@unsam.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:s2025-10-16 10:12:28.682Repositorio Institucional (UNSAM) - Universidad Nacional de General San Martínfalse
dc.title.none.fl_str_mv The role of river drainages in shaping the genetic structure of capybara populations
title The role of river drainages in shaping the genetic structure of capybara populations
spellingShingle The role of river drainages in shaping the genetic structure of capybara populations
Byrne, María Soledad
HYDROCHOERUS HYDROCHAERIS
MITOCHONDRIAL DNA
RIVER BASINS
SOUTH AMERICA
CIENCIAS BIOLÓGICAS
CIENCIAS NATURALES Y EXACTAS
title_short The role of river drainages in shaping the genetic structure of capybara populations
title_full The role of river drainages in shaping the genetic structure of capybara populations
title_fullStr The role of river drainages in shaping the genetic structure of capybara populations
title_full_unstemmed The role of river drainages in shaping the genetic structure of capybara populations
title_sort The role of river drainages in shaping the genetic structure of capybara populations
dc.creator.none.fl_str_mv Byrne, María Soledad
Quintana, Ruben Dario
Bolkovic, María Luisa
Cassini, Marcelo Hernan
Tunez, Juan Ignacio
author Byrne, María Soledad
author_facet Byrne, María Soledad
Quintana, Ruben Dario
Bolkovic, María Luisa
Cassini, Marcelo Hernan
Tunez, Juan Ignacio
author_role author
author2 Quintana, Ruben Dario
Bolkovic, María Luisa
Cassini, Marcelo Hernan
Tunez, Juan Ignacio
author2_role author
author
author
author
dc.subject.none.fl_str_mv HYDROCHOERUS HYDROCHAERIS
MITOCHONDRIAL DNA
RIVER BASINS
SOUTH AMERICA
CIENCIAS BIOLÓGICAS
CIENCIAS NATURALES Y EXACTAS
topic HYDROCHOERUS HYDROCHAERIS
MITOCHONDRIAL DNA
RIVER BASINS
SOUTH AMERICA
CIENCIAS BIOLÓGICAS
CIENCIAS NATURALES Y EXACTAS
dc.description.none.fl_txt_mv The capybara, Hydrochoerus hydrochaeris, is an herbivorous rodent widely distributed throughout most of South American wetlands that lives closely associated with aquatic environments. In this work, we studied the genetic structure of the capybara throughout part of its geographic range in Argentina using a DNA fragment of the mitochondrial control region. Haplotypes obtained were compared with those available for populations from Paraguay and Venezuela. We found 22 haplotypes in 303 individuals. Hierarchical AMOVAs were performed to evaluate the role of river drainages in shaping the genetic structure of capybara populations at the regional and basin scales. In addition, two landscape genetic models, isolation by distance and isolation by resistance, were used to test whether genetic distance was associated with Euclidean distance (i.e. isolation by distance) or river corridor distance (i.e. isolation by resistance) at the basin scale. At the regional scale, the results of the AMOVA grouping populations by mayor river basins showed significant differences between them. At the basin scale, we also found significant differences between sub-basins in Paraguay, together with a significant correlation between genetic and river corridor distance. For Argentina and Venezuela, results were not significant. These results suggest that in Paraguay, the current genetic structure of capybaras is associated with the lack of dispersion corridors through permanent rivers. In contrast, limited structuring in Argentina and Venezuela is likely the result of periodic flooding facilitating dispersion.
Fil: Byrne, María Soledad. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.
Fil: Quintana, Ruben Dario. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina.
Fil: Bolkovic, María Luisa. Secretaría de Ambiente y Desarrallo Sustentable de la Nación; Argentina
Fil: Cassini, Marcelo Hernan. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.
Fil: Tunez, Juan Ignacio. Universidad Nacional de Luján. Departamento de Ciencias Básicas. Grupo de Estudios en Ecología de Mamíferos; Argentina.
description The capybara, Hydrochoerus hydrochaeris, is an herbivorous rodent widely distributed throughout most of South American wetlands that lives closely associated with aquatic environments. In this work, we studied the genetic structure of the capybara throughout part of its geographic range in Argentina using a DNA fragment of the mitochondrial control region. Haplotypes obtained were compared with those available for populations from Paraguay and Venezuela. We found 22 haplotypes in 303 individuals. Hierarchical AMOVAs were performed to evaluate the role of river drainages in shaping the genetic structure of capybara populations at the regional and basin scales. In addition, two landscape genetic models, isolation by distance and isolation by resistance, were used to test whether genetic distance was associated with Euclidean distance (i.e. isolation by distance) or river corridor distance (i.e. isolation by resistance) at the basin scale. At the regional scale, the results of the AMOVA grouping populations by mayor river basins showed significant differences between them. At the basin scale, we also found significant differences between sub-basins in Paraguay, together with a significant correlation between genetic and river corridor distance. For Argentina and Venezuela, results were not significant. These results suggest that in Paraguay, the current genetic structure of capybaras is associated with the lack of dispersion corridors through permanent rivers. In contrast, limited structuring in Argentina and Venezuela is likely the result of periodic flooding facilitating dispersion.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
status_str publishedVersion
format article
dc.identifier.none.fl_str_mv Byrne, M. S.; Quintana, R. D.; Bolkovic, M. L.; Cassini, M. H.; Tunez, J. I. (sep 2015). The role of river drainages in shaping the genetic structure of capybara populations; Springer; Genetica; 143 (6) 645-656.
0016-6707
Genetica 2015 143(6) 645-656
https://ri.unsam.edu.ar/handle/123456789/981
identifier_str_mv Byrne, M. S.; Quintana, R. D.; Bolkovic, M. L.; Cassini, M. H.; Tunez, J. I. (sep 2015). The role of river drainages in shaping the genetic structure of capybara populations; Springer; Genetica; 143 (6) 645-656.
0016-6707
Genetica 2015 143(6) 645-656
url https://ri.unsam.edu.ar/handle/123456789/981
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5)
dc.format.none.fl_str_mv application/pdf
pp. 645-656
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Genetica 2015 143(6) 645-656
https://doi.org/10.1007/s10709-015-9862-1
reponame:Repositorio Institucional (UNSAM)
instname:Universidad Nacional de General San Martín
reponame_str Repositorio Institucional (UNSAM)
collection Repositorio Institucional (UNSAM)
instname_str Universidad Nacional de General San Martín
repository.name.fl_str_mv Repositorio Institucional (UNSAM) - Universidad Nacional de General San Martín
repository.mail.fl_str_mv lpastran@unsam.edu.ar
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score 12.712165

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