Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)

R. Eduardo Palma, Enrique Rodríguez-Serrano, Eric Rivera-Milla, Cristian E. Hernandez, Jorge Salazar-Bravo, Maria I. Carma, Sebastian Belmar-Lucero, Pablo Gutierrez-Tapia, Horacio Zeballos, Terry L. Yates

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

22 Citas (Scopus)

Resumen

Sequences from two mitochondrial genes (cytochrome b and NADH1) were used to produce a molecular phylogeny for 12 named and two undescribed species of the genus Oligoryzomys. All analyses placed Oligoryzomys microtis as the most basal taxon, a finding consistent with previous studies that suggested the west-central Amazon as a centre of origin for the tribe Oryzomyini to which Oligoryzomys belongs. Biogeographically, this suggests that Oligoryzomys had a South American origin, and later advanced northwards, entering Central America and Mexico more recently. Different analyses have provided consistent support for several additional clades that did not necessarily agree with the species groups hypothesized by previous studies. A molecular clock derived for these data suggests an origin for the genus of 6.67 Mya, with most speciation within the genus occurring between 3.7 and 1.5 Mya.

Idioma originalInglés
Páginas (desde-hasta)551-566
Número de páginas16
PublicaciónZoological Journal of the Linnean Society
Volumen160
N.º3
DOI
EstadoPublicada - nov. 2010
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)'. En conjunto forman una huella única.

Citar esto