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. 1999 Apr;151(4):1261–1272. doi: 10.1093/genetics/151.4.1261

Suppressor analysis of the Saccharomyces cerevisiae gene REC104 reveals a genetic interaction with REC102.

L Salem 1, N Walter 1, R Malone 1
PMCID: PMC1460571  PMID: 10101155

Abstract

REC104 is a gene required for the initiation of meiotic recombination in Saccharomyces cerevisiae. To better understand the role of REC104 in meiosis, we used an in vitro mutagenesis technique to create a set of temperature-conditional mutations in REC104 and used one ts allele (rec104-8) in a screen for high-copy suppressors. An increased dosage of the early exchange gene REC102 was found to suppress the conditional recombinational reduction in rec104-8 as well as in several other conditional rec104 alleles. However, no suppression was observed for a null allele of REC104, indicating that the suppression by REC102 is not "bypass" suppression. Overexpression of the early meiotic genes REC114, RAD50, HOP1, and RED1 fails to suppress any of the rec104 conditional alleles, indicating that the suppression might be specific to REC102.

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Selected References

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