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Repair of specific base pair mismatches formed during meiotic recombination in the yeast Saccharomyces cerevisiae.

Publication ,  Journal Article
Detloff, P; Sieber, J; Petes, TD
Published in: Mol Cell Biol
February 1991

Heteroduplexes formed between DNA strands derived from different homologous chromosomes are an intermediate in meiotic crossing over in the yeast Saccharomyces cerevisiae and other eucaryotes. A heteroduplex formed between wild-type and mutant genes will contain a base pair mismatch; failure to repair this mismatch will lead to postmeiotic segregation (PMS). By analyzing the frequency of PMS for various mutant alleles in the yeast HIS4 gene, we showed that C/C mismatches were inefficiently repaired relative to all other point mismatches. These other mismatches (G/G, G/A, T/T, A/A, T/C, C/A, A/A, and T/G) were repaired with approximately the same efficiency. We found that in spores with unrepaired mismatches in heteroduplexes, the nontranscribed strand of the HIS4 gene was more frequently donated than the transcribed strand. In addition, the direction of repair for certain mismatches was nonrandom.

Duke Scholars

Published In

Mol Cell Biol

DOI

ISSN

0270-7306

Publication Date

February 1991

Volume

11

Issue

2

Start / End Page

737 / 745

Location

United States

Related Subject Headings

  • Saccharomyces cerevisiae
  • Recombination, Genetic
  • Nucleic Acid Heteroduplexes
  • Mutation
  • Meiosis
  • Genetic Carrier Screening
  • Genes, Fungal
  • Developmental Biology
  • DNA, Fungal
  • DNA Repair
 

Citation

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Detloff, P., Sieber, J., & Petes, T. D. (1991). Repair of specific base pair mismatches formed during meiotic recombination in the yeast Saccharomyces cerevisiae. Mol Cell Biol, 11(2), 737–745. https://doi.org/10.1128/mcb.11.2.737-745.1991
Detloff, P., J. Sieber, and T. D. Petes. “Repair of specific base pair mismatches formed during meiotic recombination in the yeast Saccharomyces cerevisiae.Mol Cell Biol 11, no. 2 (February 1991): 737–45. https://doi.org/10.1128/mcb.11.2.737-745.1991.
Detloff, P., et al. “Repair of specific base pair mismatches formed during meiotic recombination in the yeast Saccharomyces cerevisiae.Mol Cell Biol, vol. 11, no. 2, Feb. 1991, pp. 737–45. Pubmed, doi:10.1128/mcb.11.2.737-745.1991.

Published In

Mol Cell Biol

DOI

ISSN

0270-7306

Publication Date

February 1991

Volume

11

Issue

2

Start / End Page

737 / 745

Location

United States

Related Subject Headings

  • Saccharomyces cerevisiae
  • Recombination, Genetic
  • Nucleic Acid Heteroduplexes
  • Mutation
  • Meiosis
  • Genetic Carrier Screening
  • Genes, Fungal
  • Developmental Biology
  • DNA, Fungal
  • DNA Repair