| description of the karyotype of rhagomys rufescens thomas, 1886 (rodentia, sigmodontinae) from southern brazil atlantic forest. | rhagomys rufescens (rodentia: sigmodontinae) is an endemic species of the atlantic forest from southern and southeastern brazil. some authors consider rhagomys as part of the tribe thomasomyini; but its phylogenetic relationships remain unclear. chromosomal studies on eight specimens of rhagomys rufescens revealed a diploid number of 2n = 36 and a number of autosome arms fn = 50. gtg, cbg and ag-nor banding and cma(3) /dapi staining were performed on metaphase chromosomes. eight biarmed and nine ... | 2010 | 21637420 |