Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina
Gene flow plays an essential role in the evolutionary history of the organisms and helps to identify those historical landscape features that most likely had affected the dispersal patterns. In this work, we assess, using mitochondrial control region DNA sequences, the historical migration patterns...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2019
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/4554 https://www.sciencedirect.com/science/article/pii/S161650471630012X https://doi.org/10.1016/j.mambio.2016.02.008 |
| _version_ | 1855483455270289408 |
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| author | Mora, Matias Sebastian Mapelli, Fernando Javier Lopez, Aldana Gomez Fernandez, Maria Jimena Mirol, Patricia Monica Kittlein, Marcelo Javier |
| author_browse | Gomez Fernandez, Maria Jimena Kittlein, Marcelo Javier Lopez, Aldana Mapelli, Fernando Javier Mirol, Patricia Monica Mora, Matias Sebastian |
| author_facet | Mora, Matias Sebastian Mapelli, Fernando Javier Lopez, Aldana Gomez Fernandez, Maria Jimena Mirol, Patricia Monica Kittlein, Marcelo Javier |
| author_sort | Mora, Matias Sebastian |
| collection | INTA Digital |
| description | Gene flow plays an essential role in the evolutionary history of the organisms and helps to identify those historical landscape features that most likely had affected the dispersal patterns. In this work, we assess, using mitochondrial control region DNA sequences, the historical migration patterns and population structure in Ctenomys “chasiquensis”, a highly, vulnerable and endemic subterranean rodent distributed in a very small area from the central part of Argentina. We used Bayesian and maximum likelihood approaches to evaluate the effects of historical gene flow among populations. Moreover, we used Bayesian skyline plots, tests of neutrality and mismatch distributions to assess the potential changes in population size through time. Our analyses show that populations of C. “chasiquensis” are moderate structured at regional level and this population pattern is probably the result of an asymmetric historical gene flow essentially from the South-West to the North-West, further of a recent demographic population expansion in the North-West, in conjunction with an important degree of isolation in some populations over its eastern geographical range. Evidently, historical gene flow seems to have been more frequently on the West. Finally, a close relationship appears to exist between the major climatic episodes occurred during the Late Quaternary in the central region of Argentina and the main historical demographic changes inferred for C. “chasiquensis”. The current distribution of C. “chasiquensis” appear to be a relicts of a more extended historical distribution in the Argentinean Pampas in the Late Pleistocene, with a perceptible population decline at the beginning of the Holocene. In this context, Bayesian demographic inferences showed a small but constant increment of population expansion of this species from approximately 90,000 to 11,000 years BP, after which a period of decrease in population size (that started in the early Holocene and continues nowadays) was observed. |
| format | Artículo |
| id | INTA4554 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA45542025-08-01T11:31:34Z Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina Mora, Matias Sebastian Mapelli, Fernando Javier Lopez, Aldana Gomez Fernandez, Maria Jimena Mirol, Patricia Monica Kittlein, Marcelo Javier Roedores Secuencia Nucleotídica Cambio Climático Distribución de la Población Rodents Nucleotide Sequence Climate Change Population Distribution Ctenomys chasiquensis Secuencia Genética Región Pampeana Gene flow plays an essential role in the evolutionary history of the organisms and helps to identify those historical landscape features that most likely had affected the dispersal patterns. In this work, we assess, using mitochondrial control region DNA sequences, the historical migration patterns and population structure in Ctenomys “chasiquensis”, a highly, vulnerable and endemic subterranean rodent distributed in a very small area from the central part of Argentina. We used Bayesian and maximum likelihood approaches to evaluate the effects of historical gene flow among populations. Moreover, we used Bayesian skyline plots, tests of neutrality and mismatch distributions to assess the potential changes in population size through time. Our analyses show that populations of C. “chasiquensis” are moderate structured at regional level and this population pattern is probably the result of an asymmetric historical gene flow essentially from the South-West to the North-West, further of a recent demographic population expansion in the North-West, in conjunction with an important degree of isolation in some populations over its eastern geographical range. Evidently, historical gene flow seems to have been more frequently on the West. Finally, a close relationship appears to exist between the major climatic episodes occurred during the Late Quaternary in the central region of Argentina and the main historical demographic changes inferred for C. “chasiquensis”. The current distribution of C. “chasiquensis” appear to be a relicts of a more extended historical distribution in the Argentinean Pampas in the Late Pleistocene, with a perceptible population decline at the beginning of the Holocene. In this context, Bayesian demographic inferences showed a small but constant increment of population expansion of this species from approximately 90,000 to 11,000 years BP, after which a period of decrease in population size (that started in the early Holocene and continues nowadays) was observed. EEA Bariloche Fil: Mora, Matias Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Mapelli, Fernando Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Lopez, Aldana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gomez Fernandez, Maria Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Mirol, Patricia Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Kittlein, Marcelo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina 2019-03-08T12:06:03Z 2019-03-08T12:06:03Z 2016-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/4554 https://www.sciencedirect.com/science/article/pii/S161650471630012X 1616-5047 https://doi.org/10.1016/j.mambio.2016.02.008 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Mammalian Biology 81 (3) : 314-325 (May 2016) |
| spellingShingle | Roedores Secuencia Nucleotídica Cambio Climático Distribución de la Población Rodents Nucleotide Sequence Climate Change Population Distribution Ctenomys chasiquensis Secuencia Genética Región Pampeana Mora, Matias Sebastian Mapelli, Fernando Javier Lopez, Aldana Gomez Fernandez, Maria Jimena Mirol, Patricia Monica Kittlein, Marcelo Javier Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina |
| title | Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina |
| title_full | Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina |
| title_fullStr | Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina |
| title_full_unstemmed | Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina |
| title_short | Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina |
| title_sort | population genetic structure and historical dispersal patterns in the subterranean rodent ctenomys chasiquensis from the southeastern pampas region argentina |
| topic | Roedores Secuencia Nucleotídica Cambio Climático Distribución de la Población Rodents Nucleotide Sequence Climate Change Population Distribution Ctenomys chasiquensis Secuencia Genética Región Pampeana |
| url | http://hdl.handle.net/20.500.12123/4554 https://www.sciencedirect.com/science/article/pii/S161650471630012X https://doi.org/10.1016/j.mambio.2016.02.008 |
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