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Selfish Chromosomes Disrupt Sperm Development, Study Reveals

3/14/2026

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Summary

Story summary

A University of Utah study shows selfish chromosomes hijack the Overdrive (Ovd) gene to eliminate rival sperm in two Drosophila species.
Ovd acts as a quality control checkpoint during sperm development.
The findings imply that multiple selfish chromosomes may evolve to exploit the same genetic pathway.
The results could enhance understanding of male infertility and reproductive barriers.
Nature Communications published the study.

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Story summary

A University of Utah study shows selfish chromosomes hijack the Overdrive (Ovd) gene to eliminate rival sperm in two Drosophila species.
Ovd acts as a quality control checkpoint during sperm development.
The findings imply that multiple selfish chromosomes may evolve to exploit the same genetic pathway.
The results could enhance understanding of male infertility and reproductive barriers.
Nature Communications published the study.