Spontaneous mitotic recombination was examined in the haploid pso4-1 mutant of Saccharomyces cerevisiae and in the corresponding wild-type strain. Using a genetic system involving a duplication of the his4 gene it was shown that the pso4-1 mutation decreases at least fourfold the spontaneous rate of
X-ray-induced mitotic recombination, gene conversion and mutation in Saccharomyces and the radioprotective effect of cysteine
β Scribed by Schwaier, R.
- Publisher
- Springer
- Year
- 1968
- Tongue
- English
- Weight
- 604 KB
- Volume
- 101
- Category
- Article
- ISSN
- 0026-8925
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π SIMILAR VOLUMES
The effect of UV irradiation on the survival, inter- and intragenic mitotic recombination of 3 diploid UV sensitive Saccharomyces mutants was studied and compared with the wild type RAD. These strains, homozygous for either the RAD, r1s rad 9-4, or rad 2-20 gene, have DRF values for survival of 1:1.
Effects of the rad 2-20, rad 9-4, r1s, and the corresponding wild type RAD alleles in haploid and homozygous diploid Saccharomyces strains on UV induced mutation rates from adenine, lysine and histidine dependence to independence are reported. The UV induced mutation rates were similar for the RAD,