Abstract
The taxonomic and phylogenetic relationships among fifty strains of the genus Hansenula were studied by comparing seven enzymes electrophoretically. The patterns were uniform within each of nine species and four varieties. Hansenula platypodis and Hansenula polymorpha each showed a variation in pattern within themselves. The twenty-five Hansenula species tested were clearly distinguishable from each other by their enzyme patterns. Hansenula anomala var. anomala and H. anomala var. schneggii produced identical patterns for all seven enzymes. On phylogenetic line 1 by WICKERHAM, adjoining species showed relatively similar enzyme patterns, whereas each species of line 2 produced a characteristic pattern. Hansenula wingei on line 4 was similar to Hansenula canadensis on line 3 with respect to certain enzymes.
