Summary
The effect of liquid holding treatment after UV exposure has been determined in diploid yeast cultures carrying genes for UV sensitivity in both the homozygous and heterozygous condition. In all cultures liquid holding treatment produced increases in cell viability, but in cultures carrying a UVS gene this was not correlated with the increase in the frequency of intragenic recombinants characteristic of cultures wild type for UV sensitivity, but with a significant decrease in recombinant frequency. The data presented indicates that the reduction in recombinant frequency was not correlated with a reduction in the total number of recombinants after liquid holding treatment but was due to a selective increase in the frequency of non-recombinant cells.
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Communicated by F. Kaudewitz
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Parry, J.M. The genetic effects of liquid holding recovery in ultra violet light sensitive mutants of yeast. Molec. Gen. Genet. 111, 51–60 (1971). https://doi.org/10.1007/BF00286553
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DOI: https://doi.org/10.1007/BF00286553