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dc.date.accessioned 2019-11-14T18:18:14Z
dc.date.available 2019-11-14T18:18:14Z
dc.date.issued 2013
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/85642
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 for 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. To study the historical demography and the spatial genetic structure of the C.magellanicus population we used mitochondrial DNA (mtDNA) (D-loop and cytochrome b) and microsatellite loci. Nine mtDNA haplotypes were identified, three of them belonging to the north and the other six to the south. Shared haplotypes between regions were not detected. mtDNA 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. en
dc.format.extent 697-710 es
dc.language en es
dc.subject Conservation es
dc.subject Demography es
dc.subject Genetic es
dc.subject Molecular markers es
dc.subject Population es
dc.title Historical demography and spatial genetic structure of the subterranean rodent Ctenomys magellanicus in Tierra del Fuego (Argentina) en
dc.type Articulo es
sedici.identifier.other doi:10.1111/zoj.12067 es
sedici.identifier.other eid:2-s2.0-84886781378 es
sedici.identifier.issn 0024-4082 es
sedici.creator.person Fasanella, Mariana es
sedici.creator.person Bruno, Cecilia es
sedici.creator.person Cardoso, Yamila Paula es
sedici.creator.person Lizarralde, Marta es
sedici.subject.materias Ciencias Naturales es
sedici.description.fulltext true es
mods.originInfo.place Centro Regional de Estudios Genómicos es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Zoological Journal of the Linnean Society es
sedici.relation.journalVolumeAndIssue vol. 169, no. 3 es
sedici.rights.sherpa * Color: green * Pre-print del autor: si * Post-print del autor: si * Versión de editor/PDF:no * Condiciones: >>Pre-print si only be posted prior to acceptance >>Pre-print must be accompanied by set statement (see link) >>Pre-print must not be replaced with post-print, instead a link to published version with amended set statement should be made >>Pre-print on author's personal website, employer website, free public server or pre-prints in subject area >>Post-print on author's personal website immediately >>Post-print in Institutional repositories or Central repositories after 12 months embargo >>Publisher's version/PDF no be used >>Published source must be acknowledged >>Must link to publisher version >>Set phrase to accompany archived copy (see policy) >>The publisher will deposit in PubMed Central on behalf of NIH authors >>Publisher last contacted on 19/02/2015 * Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0024-4082/es/


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)