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dc.contributor.author
Gallardo Narcisi, Milton Hermes
dc.contributor.author
Kausel, G.
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Jiménez, A.
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Bacquet, C.
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González, C.
dc.contributor.author
Figueroa, J.
dc.contributor.author
Köhler, N.
dc.contributor.author
Ojeda, Ricardo Alberto
dc.date.available
2020-04-06T13:38:45Z
dc.date.issued
2004-08
dc.identifier.citation
Gallardo Narcisi, Milton Hermes; Kausel, G.; Jiménez, A.; Bacquet, C.; González, C.; et al.; Whole-genome duplications in South American desert rodents (Octodontidae); Wiley Blackwell Publishing, Inc; Biological Journal of The Linnean Society; 82; 4; 8-2004; 443-451
dc.identifier.issn
0024-4066
dc.identifier.uri
http://hdl.handle.net/11336/102012
dc.description.abstract
The discovery of tetraploidy in the red viscacha rat, Tympanoctomys barrerae (4 n = 102) has emphasized the evolutionary role of genome duplication in mammals. The tetraploid status of this species is corroborated here by in situ PCR and Southern blot analysis of a single-copy gene. The species meiotic configuration strongly suggests a hybrid derivation. To investigate the origin of T. barrerae further, the recently described Pipanacoctomys aureus was studied. This 92-chromosome species also has a duplicated genome size, redundant gene copy number and diploid-like meiotic pairing, consistent with an event of allotetraploidization. Phylogenetic analysis of mitochondrial sequences indicates sister-group relationships between these two tetraploid rodents. The new karyotypic data and the phylogenetic relationships suggest the participation of the ancestral lineages of Octomys mimax in the genesis of P. aureus . The high overall DNA similarity and shared band homology revealed by genomic Southern hybridization as well as matching chromosome numbers between O. mimax and the descendant tetraploid species support the notion of introgressive hybridization between these taxa.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
allotetraploidy
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hybridization
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octodontids
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polyploidy
dc.subject.classification
Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Whole-genome duplications in South American desert rodents (Octodontidae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-19T14:36:34Z
dc.journal.volume
82
dc.journal.number
4
dc.journal.pagination
443-451
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Gallardo Narcisi, Milton Hermes. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Kausel, G.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Jiménez, A.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Bacquet, C.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: González, C.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Figueroa, J.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Köhler, N.. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Ojeda, Ricardo Alberto. Ministerio de Relaciones Exteriores, Comercio Internacional y Culto. Direccion Nacional del Antártico. Instituto Antártico Argentino. Instituto Antártico Argentino - Sede Cricyt (Mendoza); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentina
dc.journal.title
Biological Journal of The Linnean Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1111/j.1095-8312.2004.00331.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1095-8312.2004.00331.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/biolinnean/article/82/4/443/2643076
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