Phylogenetic and biogeographic relationships of the mouse opossum <i>Thylamys</i> (Didelphimorphia, Didelphidae) in southern South America

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dc.contributor.authorPalma, RE
dc.contributor.authorRivera-Milla, E
dc.contributor.authorYates, TL
dc.contributor.authorMarquet, PA
dc.contributor.authorMeynard, AP
dc.date.accessioned2025-01-21T01:10:25Z
dc.date.available2025-01-21T01:10:25Z
dc.date.issued2002
dc.description.abstractNucleotide sequence data from the mitochondrial cytochrome b gene were used to evaluate the phylogenetic relationships among mouse opossum species of the genus Thylamys. Based on approximately 1000 bp in five of the six species of the genus and including different localities for some of the species, we concluded that T. macrura from the subtropical forests of eastern Paraguay is the most primitive taxon. Subsequent radiation of the genus is explained mainly via founder effect speciation. This evolutionary scenario would account for the speciation of T pusilla, T venusta, T pallidior, and T elegans in the Chaco, southern Bolivia and northern Argentina, the Andean Altiplano, the Coastal Desert of Chile, and coastal Peru, respectively. Calibration of a molecular clock set the Pleistocene as the period for the differentiation of Thylamys species. The molecular results confirm the strong genetic connection between populations that inhabit the "pre-cordillera" of northern Chile (T pallidior) and the canyons that run through the Atacama Desert to the lowlands in northern Chile. Our results confirm the occurrence of two Thylamys species in Chile, T. pallidior and T. elegans, within and south to the Atacama Desert, respectively. (C) 2002 Elsevier Science (USA). All rights reserved.
dc.description.funderNIAID NIH HHS
dc.fuente.origenWOS
dc.identifier.issn1055-7903
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96682
dc.identifier.wosidWOS:000179230500003
dc.issue.numero2
dc.language.isoen
dc.pagina.final253
dc.pagina.inicio245
dc.revistaMolecular phylogenetics and evolution
dc.rightsacceso restringido
dc.subjectThylamys
dc.subjectSouth America
dc.subjectPhylogeny
dc.subjectCytochrome b
dc.subjectbiogeography
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titlePhylogenetic and biogeographic relationships of the mouse opossum <i>Thylamys</i> (Didelphimorphia, Didelphidae) in southern South America
dc.typeartículo
dc.volumen25
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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