Mating type in Saccharomyces cerevisiae is determined by two nonhomologous alleles,
MAT a and MAT α. These sequences encode regulators of the two different haploid mating …

▪ Abstract Saccharomyces cerevisiae can change its mating type as often as every
generation by a highly choreographed, site-specific recombination event that replaces one …

We sequenced two alleles of the MATa locus of Saccharomyces cerevisiae that reduce
homothallic switching and confer viability to HO rad52 strains. Both the MAT a-stk (JE Haber …

We have extended the genetic analysis of four mutants carrying defective MATα alleles in
order to determine how the mating type locus controls yeast cell types: a, a, and a α. First, we …

Homothallic switching of the mating-type MAT a gene in Saccharomyces cerevisiae results
from replacement by gene conversion of MAT-Ya DNA with Yα sequences copied from one …

The genome of the yeast Saccharomyces cerevisiae contains three complete copies of the
genetic information governing cell mating type. Normally, only the information in one of the …

Cell differentiation in yeast species is controlled by a reversible, programmed DNA-
rearrangement process called mating-type switching. Switching is achieved by two …

The mating-type locus (MAT) of Saccharomyces cerevisiae is a complex locus that codes for
the regulators of cell type. Two unique messages are transcribed from each MATallele …

ABSTRACT A mutation has been identified that suppresses the mating and sporulation
defects of all mutations in the mating-type loci of S. cereuisiae. This suppressor, sir1-1 …

Studies of heterothallic and homothallic strains of Saccharomyces cerevisiae have led to the
suggestion that mating-type information is located at three distinct sites on chromosome 3 …