Karyological data of Pseudoryzomys simplex (Rodentia - Sigmodontinae) from Atlantic Forest biome of Northeastern Brazilian

Pseudoryzomys simplex is small to medium-sized rodent, with terrestrial and semi-aquatic habits, generally associated with open areas of plains with heavy seasonal rainfall along the Chaco, Cerrado and Caatinga. Despite its extensive distribution, the species is considered rare and difficult to capture. In the present study, we provide the first cytogenetic characterization of G and C bands of P. simplex collected in plantations and pasture environments in the Atlantic Forest. Our goal is to report new cytogenetics data on the species as a basis for future taxonomic revision as well as a better understanding of the geographic variation ofthis species.