A Fine-Structure Map of Spontaneous Mitotic Crossovers in the Yeast Saccharomyces cerevisiae
2009

Understanding Mitotic Recombination in Yeast

publication Evidence: moderate

Author Information

Author(s): LaFave Matthew C., Sekelsky Jeff, Copenhaver Gregory P.

Primary Institution: University of North Carolina, Chapel Hill

Hypothesis

What initiates and regulates spontaneous mitotic recombination events?

Conclusion

The study provides new insights into the mechanisms and timing of spontaneous mitotic recombination in yeast.

Supporting Evidence

  • Mitotic recombination is rare compared to meiotic recombination.
  • New methods allow for better detection of spontaneous mitotic recombination events.
  • Findings suggest that DNA double-strand breaks initiate most spontaneous reciprocal crossovers.

Takeaway

This study looks at how yeast cells repair their DNA and why they sometimes mix up their genes, which helps keep their DNA stable.

Methodology

The authors developed a novel system to detect spontaneous mitotic recombination events in yeast, allowing for high-resolution mapping of crossovers.

Limitations

The study primarily focuses on a small percentage of the genome, which may not represent the entire genetic landscape.

Digital Object Identifier (DOI)

10.1371/journal.pgen.1000410

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