Population genetic structure of long-tailed pygmy rice rats (Oligoryzomys longicaudatus) from Argentina and Chile based on the mitochondrial control region

dc.creatorGonzález Ittig, Raúl Enrique
dc.creatorRossi Fraire, Hernán J.
dc.creatorCantoni, Gustavo E.
dc.creatorHerrero, Eduardo Rafael
dc.creatorBenedetti, Rosendo
dc.creatorGallardo Narcisi, Milton Hermes
dc.creatorGardenal, Cristina Noemi
dc.date2010-01
dc.date.accessioned2023-08-30T23:45:47Z
dc.date.available2023-08-30T23:45:47Z
dc.identifierhttp://hdl.handle.net/11336/186905
dc.identifierGonzález Ittig, Raúl Enrique; Rossi Fraire, Hernán J.; Cantoni, Gustavo E.; Herrero, Eduardo Rafael; Benedetti, Rosendo; et al.; Population genetic structure of long-tailed pygmy rice rats (Oligoryzomys longicaudatus) from Argentina and Chile based on the mitochondrial control region; National Research Council Canada-NRC Research Press; Canadian Journal of Zoology; 88; 1; 1-2010; 23-35
dc.identifier0008-4301
dc.identifier1480-3283
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8542751
dc.descriptionThe rodent Oligoryzomys longicaudatus (Bennett, 1832) (Rodentia, Cricetidae) inhabits southern forests of Argentina and Chile, a region severely affected by glaciations during the Pleistocene-Holocene periods. We evaluate here the diversity of the mitochondrial control region to characterize the genetic structure of this species from forests and bushy areas of seven populations from Argentina and four populations from Chile. Statistical analyses showed shallow haplotype trees and mismatch distributions compatible with recent range expansions. The presence of "private" haplotypes indicates that current levels of gene flow among populations of each country would be low to moderate. Significant differences in haplotype frequencies were detected between eastern and western populations, indicating that the Andes mountains would be an effective geographic barrier for gene flow despite the existing valleys that could act as corridors for dispersion. A single clade containing all the haplotypes was recovered in the phylogenetic trees, suggesting postglacial dispersion from a single refugium during the Last Glacial Maximum. The higher effective size and levels of polymorphism in populations from Chile suggest that the refugium was located in this country. The asymmetric gene flow from Chile to Argentina may reflect a recent colonization of the eastern populations.
dc.descriptionFil: González Ittig, Raúl Enrique. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Cátedra de Genética de Poblaciones y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.descriptionFil: Rossi Fraire, Hernán J.. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Cátedra de Genética de Poblaciones y Evolución; Argentina
dc.descriptionFil: Cantoni, Gustavo E.. Gobierno de la Provincia de Rio Negro. Ministerio de Salud. Unidad Regional de Epidemiologia y Salud Ambiental Zona Andina (uresa Zona Andina); Argentina
dc.descriptionFil: Herrero, Eduardo Rafael. Gobierno de la Provincia de Rio Negro. Ministerio de Salud. Unidad Regional de Epidemiologia y Salud Ambiental Zona Andina (uresa Zona Andina); Argentina
dc.descriptionFil: Benedetti, Rosendo. Provincia del Chubut. Secretaria de Salud; Argentina
dc.descriptionFil: Gallardo Narcisi, Milton Hermes. Universidad Austral de Chile; Chile
dc.descriptionFil: Gardenal, Cristina Noemi. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Cátedra de Genética de Poblaciones y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
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dc.formatapplication/pdf
dc.languageeng
dc.publisherNational Research Council Canada-NRC Research Press
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://cdnsciencepub.com/doi/abs/10.1139/Z09-115?journalCode=cjz
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1139/Z09-115
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectOligoryzomys longicaudatus
dc.subjectPopulations structure
dc.subjectMitochondrial control region
dc.subjecthttps://purl.org/becyt/ford/1.6
dc.subjecthttps://purl.org/becyt/ford/1
dc.titlePopulation genetic structure of long-tailed pygmy rice rats (Oligoryzomys longicaudatus) from Argentina and Chile based on the mitochondrial control region
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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