Genetic Conflict and Sex Ratio in Mouse Hybrid Zone
Author Information
Author(s): Macholán Miloš, Baird Stuart J.E., Munclinger Pavel, Dufková Petra, Bímová Barbora, Piálek Jaroslav
Primary Institution: Academy of Sciences of the Czech Republic
Hypothesis
Does genetic conflict outweigh heterogametic incompatibility in the mouse hybrid zone?
Conclusion
The study concludes that sex ratio distortion plays a significant role in the geographic separation of speciation genes in the mouse hybrid zone.
Supporting Evidence
- The musculus Y chromosome introgresses significantly into domesticus territory.
- Localities with musculus Y show a sex ratio close to parity.
- Significant female bias is observed in localities without Y chromosome introgression.
Takeaway
This study found that in certain areas, male mice are more common when a specific Y chromosome is present, which helps explain how different mouse types can mix and still stay separate.
Methodology
The study involved trapping and analyzing 2311 house mice across 126 sites to assess allele frequencies and sex ratios.
Potential Biases
Potential biases in sex ratio measurements due to trapping methods were noted.
Limitations
The study's findings may not be generalizable beyond the specific geographic area studied.
Participant Demographics
The study involved house mice from the Czech and Slovak Republics.
Statistical Information
P-Value
0.001
Confidence Interval
19.5–43.5 km
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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