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. 1982 Jul;101(3-4):369–404. doi: 10.1093/genetics/101.3-4.369

Recombination between Genes Located on Nonhomologous Chromosomes in SACCHAROMYCES CEREVISIAE

Margaret Dubay Mikus 1, Thomas D Petes 1
PMCID: PMC1201867  PMID: 6757052

Abstract

We constructed strains of Saccharomyces cerevisiae that contained two different mutant alleles of either the leu2 gene or the ura3 gene. These repeated genes were located on nonhomologous chromosomes; the two ura3- alleles were located on chromosomes V and XII and the two leu2- alleles were located on chromosomes III and XII. Genetic interactions between the two mutant copies of a gene were detected by the generation of either Leu+ or Ura+ revertants. Both spontaneous and ultraviolet irradiation-induced revertants were examined. By genetic and physical analysis, we have shown that Leu+ or Ura+ revertants can arise by a variety of different genetic interactions. The most common type of genetic interaction is the nonreciprocal transfer of information from one repeat to the other. We also detected reciprocal recombination between repeated genes, resulting in reciprocally translocated chromosomes.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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