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dc.contributor.author Fasanella, Mariana
dc.contributor.author Bruno, Cecilia Ines
dc.contributor.author Cardoso, Yamila Paula
dc.contributor.author Lizarralde, Marta Susana
dc.date.available 2015-07-22T17:31:42Z
dc.date.issued 2013-10
dc.identifier.citation Fasanella, Mariana; Bruno, Cecilia Ines; Cardoso, Yamila Paula; Lizarralde, Marta Susana; Historical demography and spatial genetic structure of the subterranean rodent Ctenomys magellanicus in Tierra del Fuego (Argentina); Wiley-blackwell Publishing, Inc; Zoological Journal Of The Linnean Society; 169; 10-2013; 697-710
dc.identifier.issn 0024-4082
dc.identifier.uri http://hdl.handle.net/11336/1375
dc.description.abstract Ctenomys (tuco-tuco) is the most numerous genus of South American subterranean rodents and one of the most genetically diverse clades of mammals known. In particular, the genus constitutes a very interesting model to evolutionary studies of genetic divergence and conservation. Ctenomys magellanicus is the southernmost species of the group and the only one living in Isla Grande de Tierra del Fuego (Argentina). This species presents two chromosomal forms (Cm34 and Cm36) fragmented into demes distributed from the north region (steppe) to the south region (ecotone) of the island respectively, no hybrids or overlapping areas were detected. In order to study the historical demography and the spatial genetic structure of C. magellanicus population we used mitochondrial DNA (D-loop and Cytochrome b) and microsatellite loci. Nine mtDNA haplotypes were identified, 3 of them belonging to the north and the other 6 to the south. Shared haplotypes between regions were not detected. Mitochondrial DNA and microsatellite genotypes showed a marked pattern of population structure with low values of genetic flow between regions. The south is made up of small populations or isolated demes making up an endogamic metapopulation with unique alleles and haplotypes. Also, the results suggest a northward expansion process starting from an ancestral haplotype from the south. That population might have lived at a refuge through the adverse Pleistocene environmental conditions that took place at Tierra del Fuego. Results of this study are relevant to the conservation of C. magellanicus suggesting that each region (north and south) might be considered as an Evolutionarily Significant Unit.
dc.format application/pdf
dc.language.iso eng
dc.publisher Wiley-blackwell Publishing, Inc
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Divergence
dc.subject Evolution
dc.subject Molecular Markers
dc.subject South American Rodents
dc.subject.classification Biología
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Historical demography and spatial genetic structure of the subterranean rodent Ctenomys magellanicus in Tierra del Fuego (Argentina)
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-03-30 10:35:44.97925-03
dc.journal.number 169
dc.journal.pagination 697-710
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
dc.description.fil Fil: Fasanella, Mariana. Universidad Nacional de la Plata. Centro Regional de Estudios Genomicos; Argentina;
dc.description.fil Fil: Bruno, Cecilia Ines. Universidad Nacional de la Plata. Centro Regional de Estudios Genomicos; Argentina;
dc.description.fil Fil: Cardoso, Yamila Paula. Universidad Nacional de la Plata. Centro Regional de Estudios Genomicos; Argentina;
dc.description.fil Fil: Lizarralde, Marta Susana. Universidad Nacional de la Plata. Centro Regional de Estudios Genomicos; Argentina;
dc.journal.title Zoological Journal Of The Linnean Society
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/zoj.12067/abstract
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/zoj.12067/abstract


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)