The electrophoretic karyotype of three different strains of Phaffia rh
odozyma was determined by contour-clamped homogeneous electric field (
CHEF)-gel electrophoresis. Significant differences in electrophoretic
karyotyping patterns were found among the three strains studied. Betwe
en nine and 17 bands were observed. The size of these bands, based on
their migration relative to the chromosomal DNA of Schizosaccharomyces
pombe, Hansenula wingei was estimated to be between 0.48 and 3.1 Mb.