title: Glucosamine resistance in yeast. I. A preliminary genetic analysis.
abstract: Mutants of the yeast Saccaromyces cerevisiae which can grow on glycerol medium in the presence of 0.05% D (+) glucosamine have been isolated. Genetic analysis of 13 of these glucosamine resistant (GR) mutants demonstrated two modes of inheritance. One group of mutants (GR 5, 6, 7, 8, 9 and 10) gave results characteristic of non-Mendelian inheritance and it is suggested that these mutants represent one or more new mitochondial loci. Four of the remaining mutants showed clear-cut Mendelian inheritance. These mutants fell into two complementation groups and subsequent mapping experiments demonstrated that two independent loci, gay 1 and gay 2, unlinked to each other or to the centromeres of chromosomes I, II, IV, VIII or IX, were responsible for conferring glucosamine resistance in these mutants.
mesh_terms: D002874:Chromosome Mapping; D004171:Diploidy; D005111:Extrachromosomal Inheritance; D005796:Genes; D005944:Glucosamine / Q000378:metabolism* / Q000494:pharmacology; D008928:Mitochondria / Q000378:metabolism; D009154:Mutation; D012441:Saccharomyces cerevisiae / Q000302:isolation & purification / Q000378:metabolism*
chemical_list: D005944:Glucosamine