%0 Journal Article %T Chromosome study in two Aratinga species (A. guarouba and A. acuticaudata) (Psittaciformes) %A Goldschmidt %A Beatriz %A Nogueira %A Denise M. %A Monsores %A Denise W. %A Souza %A L¨²cia M. %J Brazilian Journal of Genetics %D 1997 %I Scientific Electronic Library Online %R 10.1590/S0100-84551997000400017 %X the karyotypes of two species of psittacidae of the genus aratinga, aratinga guarouba and a. acuticaudata were studied for the first time. the metaphases were obtained using a short term culture of feather pulp. these karyotypes are compared with others of the genus and their karyological relationships in the psittaciformes are discussed %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-84551997000400017&lng=en&nrm=iso&tlng=en