Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents
Species are impacted by climate change at both ecological and evolutionary time scales. Studies in northern continents have provided abundant evidence of dramatic shifts in distributions of species subsequent to the last glacial maximum (LGM), particularly at high latitudes. However, little is known...
Published in: | Molecular Ecology |
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ftconicet:oai:ri.conicet.gov.ar:11336/94203 2023-10-09T21:46:28+02:00 Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents Lessa, Enrique P. D'elía, Guillermo Pardiñas, Ulises Francisco J. application/pdf http://hdl.handle.net/11336/94203 eng eng Wiley Blackwell Publishing, Inc info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2010.04734.x info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-294X.2010.04734.x http://hdl.handle.net/11336/94203 Lessa, Enrique P.; D'elía, Guillermo; Pardiñas, Ulises Francisco J.; Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents; Wiley Blackwell Publishing, Inc; Molecular Ecology; 19; 15; 7-2010; 3031-3037 0962-1083 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ BIOGEOGRAPHY MAMMALS PATAGONIA PHYLOGEOGRAPHY POPULATION GENETICS TIERRA DEL FUEGO https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1111/j.1365-294X.2010.04734.x 2023-09-24T18:56:48Z Species are impacted by climate change at both ecological and evolutionary time scales. Studies in northern continents have provided abundant evidence of dramatic shifts in distributions of species subsequent to the last glacial maximum (LGM), particularly at high latitudes. However, little is known about the history of southern continents, especially at high latitudes. South America is the only continent, other than Antarctica, that extends beyond 40 °S. Genetic studies of a few Patagonian species have provided seemingly conflicting results, indicating either postglacial colonization from restricted glacial refugia or persistence through glacial cycles and in situ differentiation. Using mitochondrial DNA sequences of 14 species of sigmodontine rodents, a major faunal ensemble of Patagonia and Tierra del Fuego, we show that at least nine of these species bear genetic footprints of demographic expansion from single restricted sources. However, timing of demographic expansion precedes the LGM in most of these species. Four species are fragmented phylogeographically within the region. Our results indicate that (i) demographic instability in response to historical climate change has been widespread in the Patagonian-Fueguian region, and is generally more pronounced at high latitudes in both southern and northern continents; (ii) colonization from lower latitudes is an important component of current Patagonian-Fueguian diversity; but (iii) in situ differentiation has also contributed to species diversity. Fil: Lessa, Enrique P. Universidad de la República; Uruguay Fil: D'elía, Guillermo. Universidad de Concepción; Chile Fil: Pardiñas, Ulises Francisco J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Article in Journal/Newspaper Antarc* Antarctica Tierra del Fuego CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Patagonia Argentina Uruguay Ulises ENVELOPE(-61.483,-61.483,-64.400,-64.400) Molecular Ecology 19 15 3031 3037 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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language |
English |
topic |
BIOGEOGRAPHY MAMMALS PATAGONIA PHYLOGEOGRAPHY POPULATION GENETICS TIERRA DEL FUEGO https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
BIOGEOGRAPHY MAMMALS PATAGONIA PHYLOGEOGRAPHY POPULATION GENETICS TIERRA DEL FUEGO https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Lessa, Enrique P. D'elía, Guillermo Pardiñas, Ulises Francisco J. Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents |
topic_facet |
BIOGEOGRAPHY MAMMALS PATAGONIA PHYLOGEOGRAPHY POPULATION GENETICS TIERRA DEL FUEGO https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Species are impacted by climate change at both ecological and evolutionary time scales. Studies in northern continents have provided abundant evidence of dramatic shifts in distributions of species subsequent to the last glacial maximum (LGM), particularly at high latitudes. However, little is known about the history of southern continents, especially at high latitudes. South America is the only continent, other than Antarctica, that extends beyond 40 °S. Genetic studies of a few Patagonian species have provided seemingly conflicting results, indicating either postglacial colonization from restricted glacial refugia or persistence through glacial cycles and in situ differentiation. Using mitochondrial DNA sequences of 14 species of sigmodontine rodents, a major faunal ensemble of Patagonia and Tierra del Fuego, we show that at least nine of these species bear genetic footprints of demographic expansion from single restricted sources. However, timing of demographic expansion precedes the LGM in most of these species. Four species are fragmented phylogeographically within the region. Our results indicate that (i) demographic instability in response to historical climate change has been widespread in the Patagonian-Fueguian region, and is generally more pronounced at high latitudes in both southern and northern continents; (ii) colonization from lower latitudes is an important component of current Patagonian-Fueguian diversity; but (iii) in situ differentiation has also contributed to species diversity. Fil: Lessa, Enrique P. Universidad de la República; Uruguay Fil: D'elía, Guillermo. Universidad de Concepción; Chile Fil: Pardiñas, Ulises Francisco J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina |
format |
Article in Journal/Newspaper |
author |
Lessa, Enrique P. D'elía, Guillermo Pardiñas, Ulises Francisco J. |
author_facet |
Lessa, Enrique P. D'elía, Guillermo Pardiñas, Ulises Francisco J. |
author_sort |
Lessa, Enrique P. |
title |
Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents |
title_short |
Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents |
title_full |
Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents |
title_fullStr |
Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents |
title_full_unstemmed |
Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents |
title_sort |
genetic footprints of late quaternary climate change in the diversity of patagonian-fueguian rodents |
publisher |
Wiley Blackwell Publishing, Inc |
url |
http://hdl.handle.net/11336/94203 |
long_lat |
ENVELOPE(-61.483,-61.483,-64.400,-64.400) |
geographic |
Patagonia Argentina Uruguay Ulises |
geographic_facet |
Patagonia Argentina Uruguay Ulises |
genre |
Antarc* Antarctica Tierra del Fuego |
genre_facet |
Antarc* Antarctica Tierra del Fuego |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2010.04734.x info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-294X.2010.04734.x http://hdl.handle.net/11336/94203 Lessa, Enrique P.; D'elía, Guillermo; Pardiñas, Ulises Francisco J.; Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents; Wiley Blackwell Publishing, Inc; Molecular Ecology; 19; 15; 7-2010; 3031-3037 0962-1083 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1111/j.1365-294X.2010.04734.x |
container_title |
Molecular Ecology |
container_volume |
19 |
container_issue |
15 |
container_start_page |
3031 |
op_container_end_page |
3037 |
_version_ |
1779322180313546752 |