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Updated: Aug 10, 2026

Combining Magnetic Sorting of Mother Cells and Fluctuation Tests to Analyze Genome Instability During Mitotic Cell Aging in Saccharomyces cerevisiae
11:08

Combining Magnetic Sorting of Mother Cells and Fluctuation Tests to Analyze Genome Instability During Mitotic Cell Aging in Saccharomyces cerevisiae

Published on: October 16, 2014

The relation between induced mutation frequency and cell survival--a theoretical approach and an examination of

R J Munson, D T Goodhead

    Mutation Research
    |February 1, 1977
    PubMed

    Insights

    Mutagens cause DNA damage, leading to cell death or mutations. Mathematical models predict a linear relationship between cell survival and mutation frequency, confirmed by experimental mutagenesis data.

    Area of Science:

    • Molecular Biology
    • Genetics
    • Cell Biology

    Background:

    • Mutagens induce diverse DNA lesions with varying cellular fates: repair, reproductive loss, or mutation.
    • Understanding the relationship between DNA damage and mutation outcomes is crucial in mutagenesis research.

    Purpose of the Study:

    • To investigate the quantitative relationship between DNA damage, cell survival, and mutation frequency.
    • To test theoretical predictions of this relationship using experimental mutagenesis data.

    Main Methods:

    • Analysis of published experimental mutagenesis data in eukaryotes.
    • Mathematical modeling of cellular fates following mutagen exposure.
    • Comparison of mutation frequency (M) and surviving fraction (S/SO) under varying conditions.

    Main Results:

    • A linear relationship was observed between log (surviving fraction) and log (1-mutant frequency).
    • For low mutant frequencies, the relationship simplifies to M = -m log S/SO.
    • Variations in the slope (m) indicate that different mutagens or cell types involve multiple DNA lesion types.

    Conclusions:

    • The study confirms theoretical expectations regarding the relationship between DNA damage and mutation.
    • Observed variations in the mutation-survival relationship suggest that cellular inactivation and mutation do not stem from a single type of DNA lesion.

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