ArticleNature communications2026
Epitranscriptomic RNA editing resolves Mus81 DNA repair tradeoffs in heat tolerance and meiosis.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- When growth becomes risky: stress-driven sporulation and sexual development in fungi.Stress biology · 2026Review
Corrections and comments
- Erratum issued
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Maintaining genome integrity is essential, yet how DNA repair is balanced across life stages remains poorly understood. Here we uncover an epitranscriptomic mechanism in the fungal pathogen Fusarium graminearum that alleviates a trade-off between heat-stress adaptation and sexual reproduction. We show that FgMus81 acts independently of its nuclease activity and canonical partner FgMms4, and has dosage-dependent, stage-specific functions: restrained levels support meiosis, whereas elevated levels promote heat-stress survival. We identify a sexual stage-specific A-to-I RNA editing event that recodes FgMus81 (N420D) and tunes its abundance to meet meiotic demands without compromising stress resilience. Notably, both pre-editing and post-editing isoforms support meiotic interhomolog crossovers, but the post-editing isoform impairs mitotic recombination. Conservation of this editing across Sordariomycetes suggests evolutionary selection for stage-specific control. Together, these findings reveal an epitranscriptomic switch that partitions Mus81 functions across life stages and identify adaptive RNA editing as a regulator of homologous recombination in fungal pathogens.
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