| a remarkable autosomal heteromorphism in pseudoryzomys simplex 2n = 56; fn = 54-55 (rodentia, sigmodontinae). | pseudoryzomys simplex, the false rice rat, is a monotypic genus of the oryzomyini tribe (sigmodontinae) distributed in part of bolivia, paraguay, argentina and brazil. its diploid number has been described as 56 acrocentric chromosomes decreasing in size and no karyotype figure has been depicted. herein, we present karyotypic data on p. simplex, including chromosome banding and molecular fluorescent in situ hybridization using telomeric sequences and the whole x-chromosome of its sister clade ho ... | 2013 | 23885202 |
| first record of pseudoryzomys simplex (cricetidae, sigmodontinae) in a flooded area of the pantanal, brazil. | pseudoryzomys simplex is a small to medium sized terrestrial rodent confined to lowland open areas with strong seasonal rainfall throughout the chaco, cerrado and caatinga. despite its extensive range, the species is difficult to trap. in this report we provide the first record of p. simplex in the pantanal, where three specimens were collected in a pasture of exotic grass. the specimens are morpometrically similar to the population from paraguay (chaco). in this sense, our report shows how inte ... | 2017 | 27166568 |