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. 1976 Oct;84(2):311-7.
doi: 10.1093/genetics/84.2.311.

Glucosamine resistance in yeast. I. A preliminary genetic analysis

A J Ball, D K Wong, J J Elliott

Glucosamine resistance in yeast. I. A preliminary genetic analysis

A J Ball et al. Genetics. 1976 Oct.

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.

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