| comparative cytogenetics and molecular phylogeography in the group astyanax altiparanae--astyanax aff. bimaculatus (teleostei, characidae). | the genus astyanax comprises small characin fish of the neotropical region. the so-called 'yellow-tailed characins' compose one of the most widely distributed astyanax groups. a. altiparanae and a. aff. bimaculatus, are evolutionarily closely related and commonly found in several brazilian hydrographic basins. in the present work, chromosomal data of specimens of a. altiparanae and a. aff. bimaculatus from 4 hydrographic basins in the states of são paulo (upper tietê, paranapanema, ribeira de ig ... | 2011 | 21447941 |