ArticleNucleic acids research2024
COSA-1 mediated pro-crossover complex formation promotes meiotic crossing over in C. elegans.
Article in Nucleic acids research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 5 citations in OpenAlex.
- The mid-pachytene transition between early and late double-strand breaks in C. elegans meiosis is conserved throughout early adulthood and coincides with a peak in recombination intermediates.G3 (Bethesda, Md.) · 2026Article
- Ubiquitin-proteasome system regulates pro-crossover protein dynamics during meiosis in Caenorhabditis elegans.PLoS biology · 2026Article
- Disordered protein COSA-2 maintains crossover-specific repair compartments to ensure meiotic crossover maturation.bioRxiv : the preprint server for biology · 2026Article
- COSA-1-SLX-4 interaction directly links crossover designation with Holliday junction resolution.Science advances · 2026Article
- Multi-step implementation of meiotic crossover patterning.bioRxiv : the preprint server for biology · 2025Article
- Crossover patterning through condensation and coarsening of pro-crossover factors.Nature cell biology · 2025Article
- Crossovers are regulated by a conserved and disordered synaptonemal complex domain.Nucleic acids research · 2025Article
- RNF212B E3 ligase is essential for crossover designation and maturation during male and female meiosis in the mouse.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
Abstract
Accurate chromosome segregation during meiosis requires the establishment of at least one crossover (CO) between each pair of homologous chromosomes. CO formation depends on a group of conserved pro-CO proteins, which colocalize at CO-designated sites during late meiotic prophase I. However, it remains unclear whether these pro-CO proteins form a functional complex and how they promote meiotic CO formation in vivo. Here, we show that COSA-1, a key component required for CO formation, interacts with other pro-CO factors, MSH-5 and ZHP-3, via its N-terminal disordered region. Point mutations that impair these interactions do not affect CO designation, but they strongly hinder the accumulation of COSA-1 at CO-designated sites and result in defective CO formation. These defects can be partially bypassed by artificially tethering an interaction-compromised COSA-1 derivate to ZHP-3. Furthermore, we revealed that the accumulation of COSA-1 into distinct foci is required to assemble functional 'recombination nodules'. These prevent early CO-designated recombination intermediates from being dismantled by the RTEL-1 helicase and protect late recombination intermediates, such as Holliday junctions, until they are resolved by CO-specific resolvases. Altogether, our findings provide insight into COSA-1 mediated pro-CO complex assembly and its contribution to CO formation.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.