Meiotic Recombination Intermediates Are Resolved with Minimal Crossover Formation during Return-to-Growth, an Analogue of the Mitotic Cell Cycle Joint Molecule Resolution during Return to Growth
2011

How Joint Molecules Are Resolved During Yeast Cell Division

publication Evidence: high

Author Information

Author(s): Dayani Yaron, Simchen Giora, Lichten Michael

Primary Institution: National Cancer Institute, Bethesda, Maryland, United States of America

Hypothesis

How are joint molecules resolved during the mitotic cell cycle in yeast?

Conclusion

Most joint molecules formed during meiosis are resolved without producing crossovers when cells return to growth.

Supporting Evidence

  • Joint molecules are resolved differently during meiosis and mitosis.
  • Most joint molecules during return to growth are resolved without crossovers.
  • Sgs1 helicase plays a significant role in joint molecule resolution.

Takeaway

When yeast cells switch from making eggs and sperm to growing normally, they usually fix their DNA without mixing it up, which helps keep their genes intact.

Methodology

The study used ndt80 mutant yeast cells to analyze joint molecule resolution during the return to growth process.

Limitations

The study primarily focuses on a specific yeast strain and may not generalize to other organisms.

Digital Object Identifier (DOI)

10.1371/journal.pgen.1002083

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