Abstract
The fission yeast, Schizosaccharomyces pombe, switches mating type every few cell divisions. Switching is controlled by the genes of the mating-type locus, which consists of three components, mat1, mat2-P and mat3-M, each separated by approximately 15 kb. Copy transposition of P (Plus) or M (Minus) information from mat2-P or mat3-M into the expression locus mat1 mediates cell type switching. The mating-type locus undergoes events at high frequency (10(-2)-10(-6)) which stabilize one or other mating type. These events are shown to be rearrangements which result in either deletion or insertion of DNA between cassettes.
MeSH Terms
Ascomycota/genetics
DNA Transposable Elements
DNA, Fungal/genetics
Gene Expression Regulation
Genetic Linkage
Recombination, Genetic
Reproduction
Schizosaccharomyces/genetics
Chemicals
DNA Transposable Elements
DNA, Fungal
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Beach D H
Klar A J
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