A genomic imprinting process in which a stable single-strand DNA lesion triggers programmed gene conversion at the mating-type locus, thereby restricting mating-type interconversion to one of the two sister chromatids during DNA replication.
Synonyms:
exact_synonym:
genetic imprinting at mating-type locus; genomic imprinting at mating-type locus; mating type determination, imprinting