| comparative chromosome painting in six species of oligoryzomys (rodentia, sigmodontinae) and the karyotype evolution of the genus. | oligoryzomys belongs to the tribe oryzomyini, and contains about 22 species. diploid numbers range from 2n = 44 in oligoryzomys sp. 2 to 2n = 72 in o. utiaritensis and phylogenetic relationships are not well defined. the high morphological convergence leads to misidentification of taxonomic entities and the species are often identified by chromosomal characters. until now, the genus has been studied only by classical cytogenetic approaches. to understand the chromosomal evolution of oligoryzomys ... | 2015 | 25658766 |