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Genetic analysis in the methylotrophic yeast Hansenula polymorpha
Author(s) -
Gleeson Martin A.,
Sudbery Peter E.
Publication year - 1988
Publication title -
yeast
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.923
H-Index - 102
eISSN - 1097-0061
pISSN - 0749-503X
DOI - 10.1002/yea.320040407
Subject(s) - biology , complementation , homothallism , genetics , mutant , gene , yeast , mendelian inheritance , genetic analysis , genetic linkage , mating type
Techniques are described for the induction, isolation, and characterization of mutants of Hansenula polymorpha . In addition, techniques for controlled passage through the life cycle and genetic analyses, including complementation, tetrad and random spore analysis, have been developed and used to assign mutants to 62 complementation groups. We report that organism conforms to the expected genetics of a homothallic yeast and displays a Mendelian segregation of genes through meiosis. Preliminary mapping data are presented indicating linkage of three genes on a single linkage fragment. Enymatic analysis of methanol‐non‐utilizing mutants identified one class which is totally deficient in the key assimilatroy enzyme, dihydroxyacetone synthase.

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