Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina

Autores
Bruno, María Cecilia; Casciotta, Jorge Rafael; Almirón, Adriana Edith; Lizarralde, Marta Susana
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Atlantic drainage basins are located in the southern Pampean area, in the southernmost part of the Brazilian subregion. Tectonic and paleoclimatic phenomena, occurring during the Quaternary, have currently isolated these basins from the present hydrographic system. Their ichthyofaunal composition is similar to that of hydric systems located further northward. Jenynsia multidentata is a species with wide distribution in the Atlantic drainage basins, as well as in those Northern basins. Here we investigated the phylogeographic pattern of Jenynsia multidentata and analyzed its relationships with the paleoclimatic and geologic history of the region. The analysis of the population's assemblage showed moderate genetic diversity, demographic equilibrium and marked genetic structure in the populations that occupy the extremes of the distributional range. The populations in the center of the range did not present genetic diversity, sharing a single haplotype. These results allow inferring that the presence of Jenynsia multidentata in the area results from historical demographic processes that are independent but complementary. In turn, these processes could arise from paleoclimatic changes occurred during the Quaternary.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Control region
Genetic structure
Ichthyofauna
Phylogeography
Southern Pampean area
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/85571
Acceder
id SEDICI_012ad23e037b236ca96c980cd0403f5b
oai_identifier_str oai:sedici.unlp.edu.ar:10915/85571
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, ArgentinaBruno, María CeciliaCasciotta, Jorge RafaelAlmirón, Adriana EdithLizarralde, Marta SusanaCiencias NaturalesControl regionGenetic structureIchthyofaunaPhylogeographySouthern Pampean areaThe Atlantic drainage basins are located in the southern Pampean area, in the southernmost part of the Brazilian subregion. Tectonic and paleoclimatic phenomena, occurring during the Quaternary, have currently isolated these basins from the present hydrographic system. Their ichthyofaunal composition is similar to that of hydric systems located further northward. Jenynsia multidentata is a species with wide distribution in the Atlantic drainage basins, as well as in those Northern basins. Here we investigated the phylogeographic pattern of Jenynsia multidentata and analyzed its relationships with the paleoclimatic and geologic history of the region. The analysis of the population's assemblage showed moderate genetic diversity, demographic equilibrium and marked genetic structure in the populations that occupy the extremes of the distributional range. The populations in the center of the range did not present genetic diversity, sharing a single haplotype. These results allow inferring that the presence of Jenynsia multidentata in the area results from historical demographic processes that are independent but complementary. In turn, these processes could arise from paleoclimatic changes occurred during the Quaternary.Facultad de Ciencias Naturales y Museo2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf477-486http://sedici.unlp.edu.ar/handle/10915/85571enginfo:eu-repo/semantics/altIdentifier/issn/1679-6225info:eu-repo/semantics/altIdentifier/doi/10.1590/S1679-62252013000300001info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:08:26Zoai:sedici.unlp.edu.ar:10915/85571Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:08:26.613SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
title Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
spellingShingle Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
Bruno, María Cecilia
Ciencias Naturales
Control region
Genetic structure
Ichthyofauna
Phylogeography
Southern Pampean area
title_short Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
title_full Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
title_fullStr Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
title_full_unstemmed Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
title_sort Phylogeographic pattern of <i>Jenynsia multidentata</i> (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian subregion, Argentina
dc.creator.none.fl_str_mv Bruno, María Cecilia
Casciotta, Jorge Rafael
Almirón, Adriana Edith
Lizarralde, Marta Susana
author Bruno, María Cecilia
author_facet Bruno, María Cecilia
Casciotta, Jorge Rafael
Almirón, Adriana Edith
Lizarralde, Marta Susana
author_role author
author2 Casciotta, Jorge Rafael
Almirón, Adriana Edith
Lizarralde, Marta Susana
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Control region
Genetic structure
Ichthyofauna
Phylogeography
Southern Pampean area
topic Ciencias Naturales
Control region
Genetic structure
Ichthyofauna
Phylogeography
Southern Pampean area
dc.description.none.fl_txt_mv The Atlantic drainage basins are located in the southern Pampean area, in the southernmost part of the Brazilian subregion. Tectonic and paleoclimatic phenomena, occurring during the Quaternary, have currently isolated these basins from the present hydrographic system. Their ichthyofaunal composition is similar to that of hydric systems located further northward. Jenynsia multidentata is a species with wide distribution in the Atlantic drainage basins, as well as in those Northern basins. Here we investigated the phylogeographic pattern of Jenynsia multidentata and analyzed its relationships with the paleoclimatic and geologic history of the region. The analysis of the population's assemblage showed moderate genetic diversity, demographic equilibrium and marked genetic structure in the populations that occupy the extremes of the distributional range. The populations in the center of the range did not present genetic diversity, sharing a single haplotype. These results allow inferring that the presence of Jenynsia multidentata in the area results from historical demographic processes that are independent but complementary. In turn, these processes could arise from paleoclimatic changes occurred during the Quaternary.
Facultad de Ciencias Naturales y Museo
description The Atlantic drainage basins are located in the southern Pampean area, in the southernmost part of the Brazilian subregion. Tectonic and paleoclimatic phenomena, occurring during the Quaternary, have currently isolated these basins from the present hydrographic system. Their ichthyofaunal composition is similar to that of hydric systems located further northward. Jenynsia multidentata is a species with wide distribution in the Atlantic drainage basins, as well as in those Northern basins. Here we investigated the phylogeographic pattern of Jenynsia multidentata and analyzed its relationships with the paleoclimatic and geologic history of the region. The analysis of the population's assemblage showed moderate genetic diversity, demographic equilibrium and marked genetic structure in the populations that occupy the extremes of the distributional range. The populations in the center of the range did not present genetic diversity, sharing a single haplotype. These results allow inferring that the presence of Jenynsia multidentata in the area results from historical demographic processes that are independent but complementary. In turn, these processes could arise from paleoclimatic changes occurred during the Quaternary.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/85571
url http://sedici.unlp.edu.ar/handle/10915/85571
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1679-6225
info:eu-repo/semantics/altIdentifier/doi/10.1590/S1679-62252013000300001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
477-486
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
_version_ 1846064140775325696
score 13.22299

Publicaciones similares