Physical lengths of meiotic and mitotic gene conversion tracts in Saccharomyces cerevisiae.

Published

Journal Article

Physical lengths of gene conversion tracts for meiotic and mitotic conversions were examined, using the same diploid yeast strain in all experiments. This strain is heterozygous for a mutation in the URA3 gene as well as closely linked restriction site markers. In cells that had a gene conversion event at the URA3 locus, it was determined by Southern analysis which of the flanking heterozygous restriction sites had co-converted. It was found that mitotic conversion tracts were longer on the average than meiotic tracts. About half of the tracts generated by spontaneous mitotic gene conversion included heterozygous markers 4.2 kb apart; none of the meiotic conversions included these markers. Stimulation of mitotic gene conversion by ultraviolet light or methylmethanesulfonate had no obvious effect on the size or distribution of the tracts. Almost all conversion tracts were continuous.

Full Text

Duke Authors

Cited Authors

  • Judd, SR; Petes, TD

Published Date

  • March 1988

Published In

Volume / Issue

  • 118 / 3

Start / End Page

  • 401 - 410

PubMed ID

  • 2835285

Pubmed Central ID

  • 2835285

International Standard Serial Number (ISSN)

  • 0016-6731

Language

  • eng

Conference Location

  • United States