Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption
- Autores
- Hsu, Jeremy L.; Kam, Sharon; Tammone, Mauro Nicolás; Lacey, Eileen Anne; Hadly, Elizabeth A.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Catastrophic natural events can have profound impacts on patterns of genetic diversity. Due to the typically unpredictable nature of such phenomena, however, few studies have been able to directly compare patterns of diversity before and after natural catastrophic events. Here, we examine the impacts of a recent volcanic eruption in southern Chile on genetic variation in the colonial tuco-tuco (Ctenomys sociabilis), a subterranean species of rodent endemic to the area most affected by the June 2011 eruption of the Puyehue-Cordón Caulle volcanic complex. To provide a comparative context for interpreting changes in genetic variation in this species, we also analyze the effects of this eruption on genetic variation in the geographically proximate but more widely distributed Patagonian tuco-tuco (C. haigi). Our analyses indicate that while both C. sociabilis and C. haigi displayed significant post-eruption decreases in population density, the apparent impacts of the eruption on genetic diversity differed between species. In particular, genetic diversity at multiple microsatellite loci increased in C. sociabilis after the eruption while no comparable post-eruption increase in C. haigi was observed at these loci. No changes in post-eruption diversity at the mitochondrial cytochrome b locus were detected for either species. To place these findings in a larger spatiotemporal context, we compared our results for C. sociabilis to genetic data from additional modern and ancient populations of this species. These comparisons, combined with Bayesian serial coalescent modeling, suggest that post-eruption gene flow from nearby populations represents the most probable explanation for the apparent increase in post-eruption microsatellite diversity in C. sociabilis. Thus, detailed comparisons of pre- and post-eruption populations provide important insights into not only the genetic consequences of a natural catastrophic event, but also the demographic processes by which these changes in genetic diversity likely occurred.
Los eventos naturales catastróficos pueden generar impactos notables en los patrones de diversidad genética. Debido a que estos fenómenos son típicamente impredecibles, muy pocos estudios han podido dedicarse a comparar patrones de diversidad genética antes y después de un evento natural catastrófico. En este trabajo se examina el impacto de la erupción volcánica en junio de 2011 del complejo volcánico Puyehue-Cordón Caulle sobre la diversidad genética del tuco-tuco colonial (Ctenomys sociabilis), un roedor subterráneo endémico del área más afectada por la erupción volcánica. A su vez, se examinan los efectos de dicha erupción sobre la diversidad genética del parapátrico tuco-tuco patagónico (C. haigi), ampliamente distribuido en el noroeste de Patagonia. Estos análisis indican que aunque ambas especies muestran un decrecimiento significativo en la densidad poblacional, el impacto de la erupción en la diversidad genética fue diferente entre las especies. Particularmente, en C. sociabilis se observó un aumento de la diversidad genética de varios loci microsatélites luego de la erupción volcánica, mientras que en C. haigi no se observó tal aumento. Para el locus mitocondrial citocromo b no se observó ningún cambio de diversidad genética luego de la erupción volcánica en ninguna de las especies. Para ubicar estos descubrimientos en un contexto temporal más amplio, los resultados de C. socibilis se compararon con datos genéticos de otras poblaciones actuales y antiguas de esta especie. Utilizando modelos bayesianos basados en la teoría serial coalescente, esto análisis sugieren que el flujo genético post-erupción representa la explicación más probable al aumento en la diversidad de microsatélites en C. sociabilis. De esta manera, las comparaciones entre poblaciones pre- y post-erupción proporcionan información relevante no solo sobre las consecuencias genéticas de eventos naturales catastróficos, sino también sobre los procesos demográficos que probablemente generaron tales cambios en la diversidad genética.
Fil: Hsu, Jeremy L.. University of Stanford; Estados Unidos
Fil: Kam, Sharon. University of Stanford; Estados Unidos
Fil: Tammone, Mauro Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Programa de Estudios Aplicados a la Conservación; Argentina
Fil: Lacey, Eileen Anne. University of Stanford; Estados Unidos. University of California; Estados Unidos
Fil: Hadly, Elizabeth A.. University of Stanford; Estados Unidos - Materia
-
Ctenomys
Volcanic eruption
Patagonia - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/66251
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Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruptionHsu, Jeremy L.Kam, SharonTammone, Mauro NicolásLacey, Eileen AnneHadly, Elizabeth A.CtenomysVolcanic eruptionPatagoniahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Catastrophic natural events can have profound impacts on patterns of genetic diversity. Due to the typically unpredictable nature of such phenomena, however, few studies have been able to directly compare patterns of diversity before and after natural catastrophic events. Here, we examine the impacts of a recent volcanic eruption in southern Chile on genetic variation in the colonial tuco-tuco (Ctenomys sociabilis), a subterranean species of rodent endemic to the area most affected by the June 2011 eruption of the Puyehue-Cordón Caulle volcanic complex. To provide a comparative context for interpreting changes in genetic variation in this species, we also analyze the effects of this eruption on genetic variation in the geographically proximate but more widely distributed Patagonian tuco-tuco (C. haigi). Our analyses indicate that while both C. sociabilis and C. haigi displayed significant post-eruption decreases in population density, the apparent impacts of the eruption on genetic diversity differed between species. In particular, genetic diversity at multiple microsatellite loci increased in C. sociabilis after the eruption while no comparable post-eruption increase in C. haigi was observed at these loci. No changes in post-eruption diversity at the mitochondrial cytochrome b locus were detected for either species. To place these findings in a larger spatiotemporal context, we compared our results for C. sociabilis to genetic data from additional modern and ancient populations of this species. These comparisons, combined with Bayesian serial coalescent modeling, suggest that post-eruption gene flow from nearby populations represents the most probable explanation for the apparent increase in post-eruption microsatellite diversity in C. sociabilis. Thus, detailed comparisons of pre- and post-eruption populations provide important insights into not only the genetic consequences of a natural catastrophic event, but also the demographic processes by which these changes in genetic diversity likely occurred.Los eventos naturales catastróficos pueden generar impactos notables en los patrones de diversidad genética. Debido a que estos fenómenos son típicamente impredecibles, muy pocos estudios han podido dedicarse a comparar patrones de diversidad genética antes y después de un evento natural catastrófico. En este trabajo se examina el impacto de la erupción volcánica en junio de 2011 del complejo volcánico Puyehue-Cordón Caulle sobre la diversidad genética del tuco-tuco colonial (Ctenomys sociabilis), un roedor subterráneo endémico del área más afectada por la erupción volcánica. A su vez, se examinan los efectos de dicha erupción sobre la diversidad genética del parapátrico tuco-tuco patagónico (C. haigi), ampliamente distribuido en el noroeste de Patagonia. Estos análisis indican que aunque ambas especies muestran un decrecimiento significativo en la densidad poblacional, el impacto de la erupción en la diversidad genética fue diferente entre las especies. Particularmente, en C. sociabilis se observó un aumento de la diversidad genética de varios loci microsatélites luego de la erupción volcánica, mientras que en C. haigi no se observó tal aumento. Para el locus mitocondrial citocromo b no se observó ningún cambio de diversidad genética luego de la erupción volcánica en ninguna de las especies. Para ubicar estos descubrimientos en un contexto temporal más amplio, los resultados de C. socibilis se compararon con datos genéticos de otras poblaciones actuales y antiguas de esta especie. Utilizando modelos bayesianos basados en la teoría serial coalescente, esto análisis sugieren que el flujo genético post-erupción representa la explicación más probable al aumento en la diversidad de microsatélites en C. sociabilis. De esta manera, las comparaciones entre poblaciones pre- y post-erupción proporcionan información relevante no solo sobre las consecuencias genéticas de eventos naturales catastróficos, sino también sobre los procesos demográficos que probablemente generaron tales cambios en la diversidad genética.Fil: Hsu, Jeremy L.. University of Stanford; Estados UnidosFil: Kam, Sharon. University of Stanford; Estados UnidosFil: Tammone, Mauro Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Programa de Estudios Aplicados a la Conservación; ArgentinaFil: Lacey, Eileen Anne. University of Stanford; Estados Unidos. University of California; Estados UnidosFil: Hadly, Elizabeth A.. University of Stanford; Estados UnidosAlliance Communications Group Division Allen Press2017-05-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66251Hsu, Jeremy L.; Kam, Sharon; Tammone, Mauro Nicolás; Lacey, Eileen Anne; Hadly, Elizabeth A.; Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption; Alliance Communications Group Division Allen Press; Journal of Mammalogy; 98; 3; 21-5-2017; 779-7920022-2372CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/jmammal/gyx008info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jmammal/article/98/3/779/3038241info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:54:21Zoai:ri.conicet.gov.ar:11336/66251instacron: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:34982025-09-29 09:54:22.073CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
title |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
spellingShingle |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption Hsu, Jeremy L. Ctenomys Volcanic eruption Patagonia |
title_short |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
title_full |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
title_fullStr |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
title_full_unstemmed |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
title_sort |
Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption |
dc.creator.none.fl_str_mv |
Hsu, Jeremy L. Kam, Sharon Tammone, Mauro Nicolás Lacey, Eileen Anne Hadly, Elizabeth A. |
author |
Hsu, Jeremy L. |
author_facet |
Hsu, Jeremy L. Kam, Sharon Tammone, Mauro Nicolás Lacey, Eileen Anne Hadly, Elizabeth A. |
author_role |
author |
author2 |
Kam, Sharon Tammone, Mauro Nicolás Lacey, Eileen Anne Hadly, Elizabeth A. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ctenomys Volcanic eruption Patagonia |
topic |
Ctenomys Volcanic eruption Patagonia |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Catastrophic natural events can have profound impacts on patterns of genetic diversity. Due to the typically unpredictable nature of such phenomena, however, few studies have been able to directly compare patterns of diversity before and after natural catastrophic events. Here, we examine the impacts of a recent volcanic eruption in southern Chile on genetic variation in the colonial tuco-tuco (Ctenomys sociabilis), a subterranean species of rodent endemic to the area most affected by the June 2011 eruption of the Puyehue-Cordón Caulle volcanic complex. To provide a comparative context for interpreting changes in genetic variation in this species, we also analyze the effects of this eruption on genetic variation in the geographically proximate but more widely distributed Patagonian tuco-tuco (C. haigi). Our analyses indicate that while both C. sociabilis and C. haigi displayed significant post-eruption decreases in population density, the apparent impacts of the eruption on genetic diversity differed between species. In particular, genetic diversity at multiple microsatellite loci increased in C. sociabilis after the eruption while no comparable post-eruption increase in C. haigi was observed at these loci. No changes in post-eruption diversity at the mitochondrial cytochrome b locus were detected for either species. To place these findings in a larger spatiotemporal context, we compared our results for C. sociabilis to genetic data from additional modern and ancient populations of this species. These comparisons, combined with Bayesian serial coalescent modeling, suggest that post-eruption gene flow from nearby populations represents the most probable explanation for the apparent increase in post-eruption microsatellite diversity in C. sociabilis. Thus, detailed comparisons of pre- and post-eruption populations provide important insights into not only the genetic consequences of a natural catastrophic event, but also the demographic processes by which these changes in genetic diversity likely occurred. Los eventos naturales catastróficos pueden generar impactos notables en los patrones de diversidad genética. Debido a que estos fenómenos son típicamente impredecibles, muy pocos estudios han podido dedicarse a comparar patrones de diversidad genética antes y después de un evento natural catastrófico. En este trabajo se examina el impacto de la erupción volcánica en junio de 2011 del complejo volcánico Puyehue-Cordón Caulle sobre la diversidad genética del tuco-tuco colonial (Ctenomys sociabilis), un roedor subterráneo endémico del área más afectada por la erupción volcánica. A su vez, se examinan los efectos de dicha erupción sobre la diversidad genética del parapátrico tuco-tuco patagónico (C. haigi), ampliamente distribuido en el noroeste de Patagonia. Estos análisis indican que aunque ambas especies muestran un decrecimiento significativo en la densidad poblacional, el impacto de la erupción en la diversidad genética fue diferente entre las especies. Particularmente, en C. sociabilis se observó un aumento de la diversidad genética de varios loci microsatélites luego de la erupción volcánica, mientras que en C. haigi no se observó tal aumento. Para el locus mitocondrial citocromo b no se observó ningún cambio de diversidad genética luego de la erupción volcánica en ninguna de las especies. Para ubicar estos descubrimientos en un contexto temporal más amplio, los resultados de C. socibilis se compararon con datos genéticos de otras poblaciones actuales y antiguas de esta especie. Utilizando modelos bayesianos basados en la teoría serial coalescente, esto análisis sugieren que el flujo genético post-erupción representa la explicación más probable al aumento en la diversidad de microsatélites en C. sociabilis. De esta manera, las comparaciones entre poblaciones pre- y post-erupción proporcionan información relevante no solo sobre las consecuencias genéticas de eventos naturales catastróficos, sino también sobre los procesos demográficos que probablemente generaron tales cambios en la diversidad genética. Fil: Hsu, Jeremy L.. University of Stanford; Estados Unidos Fil: Kam, Sharon. University of Stanford; Estados Unidos Fil: Tammone, Mauro Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Programa de Estudios Aplicados a la Conservación; Argentina Fil: Lacey, Eileen Anne. University of Stanford; Estados Unidos. University of California; Estados Unidos Fil: Hadly, Elizabeth A.. University of Stanford; Estados Unidos |
description |
Catastrophic natural events can have profound impacts on patterns of genetic diversity. Due to the typically unpredictable nature of such phenomena, however, few studies have been able to directly compare patterns of diversity before and after natural catastrophic events. Here, we examine the impacts of a recent volcanic eruption in southern Chile on genetic variation in the colonial tuco-tuco (Ctenomys sociabilis), a subterranean species of rodent endemic to the area most affected by the June 2011 eruption of the Puyehue-Cordón Caulle volcanic complex. To provide a comparative context for interpreting changes in genetic variation in this species, we also analyze the effects of this eruption on genetic variation in the geographically proximate but more widely distributed Patagonian tuco-tuco (C. haigi). Our analyses indicate that while both C. sociabilis and C. haigi displayed significant post-eruption decreases in population density, the apparent impacts of the eruption on genetic diversity differed between species. In particular, genetic diversity at multiple microsatellite loci increased in C. sociabilis after the eruption while no comparable post-eruption increase in C. haigi was observed at these loci. No changes in post-eruption diversity at the mitochondrial cytochrome b locus were detected for either species. To place these findings in a larger spatiotemporal context, we compared our results for C. sociabilis to genetic data from additional modern and ancient populations of this species. These comparisons, combined with Bayesian serial coalescent modeling, suggest that post-eruption gene flow from nearby populations represents the most probable explanation for the apparent increase in post-eruption microsatellite diversity in C. sociabilis. Thus, detailed comparisons of pre- and post-eruption populations provide important insights into not only the genetic consequences of a natural catastrophic event, but also the demographic processes by which these changes in genetic diversity likely occurred. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05-21 |
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/11336/66251 Hsu, Jeremy L.; Kam, Sharon; Tammone, Mauro Nicolás; Lacey, Eileen Anne; Hadly, Elizabeth A.; Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption; Alliance Communications Group Division Allen Press; Journal of Mammalogy; 98; 3; 21-5-2017; 779-792 0022-2372 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/66251 |
identifier_str_mv |
Hsu, Jeremy L.; Kam, Sharon; Tammone, Mauro Nicolás; Lacey, Eileen Anne; Hadly, Elizabeth A.; Rapid increase in genetic diversity in an endemic Patagonian tuco-tuco following a recent volcanic eruption; Alliance Communications Group Division Allen Press; Journal of Mammalogy; 98; 3; 21-5-2017; 779-792 0022-2372 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1093/jmammal/gyx008 info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jmammal/article/98/3/779/3038241 |
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/ |
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application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Alliance Communications Group Division Allen Press |
publisher.none.fl_str_mv |
Alliance Communications Group Division Allen Press |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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