Inheritance of paternal DNA damage by histone-mediated repair restriction
Open accessPublished version of a preprint
Abstract
How paternal exposure to ionizing radiation affects genetic inheritance and disease risk in the offspring has been a long-standing question in radiation biology. In humans, nearly 80% of transmitted mutations arise in the paternal germline 1 , but the transgenerational effects of ionizing radiation exposure has remained controversial and the mechanisms are unknown. Here we show that in sex-separated Caenorhabditis elegans strains, paternal, but not maternal, exposure to ionizing radiation leads to transgenerational embryonic lethality. The offspring of irradiated males displayed various genome instability phenotypes, including DNA fragmentation, chromosomal rearrangement and aneuploidy. Paternal DNA double strand breaks were repaired by maternally provided error-prone polymerase theta-mediated end joining. Mechanistically, we show that depletion of an orthologue of human histone H1.0, HIS-24, or the heterochromatin protein HPL-1, could significantly reverse the transgenerational embryonic lethality. Removal of HIS-24 or HPL-1 reduced histone 3 lysine 9 dimethylation and enabled error-free homologous recombination repair in the germline of the F 1 generation from ionizing radiation-treated P 0 males, consequently improving the viability of the F 2 generation. This work establishes the mechanistic underpinnings of the heritable consequences of paternal radiation exposure on the health of offspring, which may lead to congenital disorders and cancer in humans.
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In cancer genomes, single nucleotide variants are preferentially accumulated in heterochromatin because condensed structure presents a barrier to efficient DNA repair.
“in cancer genome single nucleotide variants are preferentially accumulated in heterochromatin, due to the condensed structure presents as a barrier for efficient DNA repair10,47”
From Single-cell parallel analysis of DNA damage and transcriptome reveals selective genome vulnerability (2025) · cites this paper as [10]
The ‘HRR prevents transgenerational lethality’ section says heterochromatization could impede faithful double-strand-break repair, supporting the proposed repair barrier. But the paper’s evidence concerns paternal DNA damage and structural variants, not preferential accumulation of single-nucleotide variants in heterochromatin in cancer genomes. Page numbers are unavailable in our copy. (LLM, conf=0.86)
Experimental — accuracy not yet measuredReduced H3K9me2 levels facilitate homologous recombination repair.
“reduced H3K9me2 levels facilitates homologous recombination repair10”
From Single-cell parallel analysis of DNA damage and transcriptome reveals selective genome vulnerability (2025) · cites this paper as [10]
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Cited by
Sorted by citations
Single-cell parallel analysis of DNA damage and transcriptome reveals selective genome vulnerability
Bai, D., Cao, Z., Attada, N., Song, J., & Zhu, C. (2025) · Nature Methods · doi:10.1038/s41592-025-02632-3 · Cited by 16 · see citing works
Jia, Z., Qiu, F., He, Y., Chen, H., Yang, C., Liu, H., Zheng, T., Xu, S., Wang, S., & Li, Y. (2024) · BMC Medicine · doi:10.1186/s12916-024-03629-z · Cited by 6 · see citing works
Self-citation
- Authors
- Wang, S., Meyer, D. H., & Schumacher, B.
- Affiliations
- University of Cologne (DE)
- Corresponding author
- Wang, Siyao
- Schumacher, Björn
- Venue
- Nature
- Published
- 2022-12-21
- Volume
- 613
- Issue
- 7943
- Pages
- 365-374
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- PMC
- PMC9834056
- OpenAlex
- W4312095729
- Cited by
- 68
- References
- 2
- Citations by year
- 2026: 12 · 2025: 18 · 2024: 16 · 2023: 21 · 2022: 1
- FWCI
- 4.55
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Nature (publishedVersion, cc-by)
- Research Square (acceptedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Kölner Universitäts PublikationsServer (Universität zu Köln) (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Funders
- John Templeton Foundation (61734)
- Oklahoma Medical Research Foundation
- Deutsche Forschungsgemeinschaft (GRK-2407, SFB829, 390661388, SCHU 2494/11-1, 407493903, KFO286, SCHU 2494 15-1, EXC2030, SCHU 2494/7-1, KFO-329, SCHU 2494/3‐1, 423957469, SCHU 2494/10‐1)
- Ministry of Education, Culture, Sports, Science and Technology
- Deutsche Krebshilfe (70112899)
- Universität zu Köln (EXC 2030 -390661388)
- National Institutes of Health (H2020)
- Horizon 2020 Framework Programme (MSCA‐ITN‐2018, H2020-MSCA, 390661388, H2020-MSCA-ITN-2018, H2020-MSCA-ITN)
- National Center for Research Resources
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
- Keywords
- transgenerational effects, DNA double-strand breaks, DNA repair, histone H1.0, H3K9me2, homologous recombination repair, polymerase theta, genomic instability, aneuploidy, chromosomal rearrangements, embryonic lethality, germline, Caenorhabditis elegans
- MeSH terms
- DNA Polymerase theta, Animals, Chromosomal Proteins, Non-Histone, DNA Damage, DNA Repair, Female, Histones, Humans, Male, Mutation, Radiation, Ionizing, Caenorhabditis elegans, Embryo Loss, Caenorhabditis elegans Proteins, Genomic Instability, DNA Breaks, Double-Stranded, DNA End-Joining Repair
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