Rates of spontaneous mitotic recombination in Saccharomyces cerevisiae

Abstract

The rates of mitotic recombination at the loci ade3, ade5–7, ade6 and ade8 were approximated by the method of ‘increasing proportion of variants with growth’. The values (per cell generation) were 3·5 × 10−4 for ade8, 1·4 × 10−4 for ade5–7, 4·0 × 10−5 for ade3 and < 2 × 10−6 for ade6. The relative frequencies of mitotic recombination in regions between ade 5–7 and the centromere were different from those obtained with radiation-induced recombinants. © 1971, Cambridge University Press. All rights reserved.