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Long-read sequencing reveals pre-meiotic gene conversion in sperm

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TL;DR - Single-molecule long-read sequencing of human sperm reveals donor-level variation in recombination and indicates that many non-crossover gene conversions occur before meiosis. This distinguishes them from PRDM9-driven meiotic recombination and links them to fragile genomic sites.

Profiles recombination directly in human sperm using single-molecule long-read sequencing.
Finds that recombination patterns vary across donors.
Shows that a substantial fraction of non-crossover gene conversions arise pre-meiotically.
Associates these events with fragile sites rather than PRDM9-driven recombination.

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Long-read sequencing reveals pre-meiotic gene conversion in sperm

Nature Regev Schweiger, Sangjin Lee, Chenxi Zhou, Tsun-Po Yang, Stacy Li, Rashesh Sanghvi, Matthew Neville, Katie Smith, Kirsty Roberts, Ayrun Nessa, Sam Wadge, Kerrin S. Small, Peter J. Campbell, Kristian Almstrup, Peter H. Sudmant, Raheleh Rahbari, Richard Durbin 2026-08-26 doi:10.1038/s41586-026-10901-0

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Providers: Hugging Face · N/A OpenAlex · Citations 0 Publisher · N/A Semantic Scholar · N/A X · N/A Fetched 2026-09-25 14:28:00.080054 UTC

Profiles recombination directly in human sperm using single-molecule long-read sequencing.
Finds that recombination patterns vary across donors.
Shows that a substantial fraction of non-crossover gene conversions arise pre-meiotically.
Associates these events with fragile sites rather than PRDM9-driven recombination.

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