| karyotype diversity of four species of the incertae sedis group (characidae) from different hydrographic basins: analysis of agnors, cma3 and 18s rdna. | a large number of genera in the tropical fish family characidae are incertae sedis. cytogenetic analysis was made of four of these species: astyanax eigenmanniorum, deuterodon stigmaturus, hyphessobrycon luetkenii, and h. anisitsi, collected from various hydrographic basins: hydrographic system from laguna dos patos/rs, tramandaí basin/rs and tibagi river basin/pr. the first two species were collected in their type locality in the state of rio grande do sul. the 2n = 48 karyotype was observed on ... | 2011 | 22179995 |