Coloration and the genetics of adaptation
2007
Color Variation in Beach Mice and Genetics
Sample size: 124
publication
Evidence: moderate
Author Information
Author(s): Nicholas I. Mundy
Primary Institution: Department of Zoology, University of Cambridge
Hypothesis
How is coat color determined in beach mice?
Conclusion
The study shows that color variation in beach mice is partly controlled by epistatic interactions between two genes.
Supporting Evidence
- Color variation is abundant in natural populations and can be readily quantified.
- Previous work has shown that coloration provides crypsis against avian predators.
- Agouti has been implicated in natural color variation for the first time in this study.
Takeaway
Beach mice have different colors to help them hide from predators, and this color is influenced by two genes working together.
Methodology
The authors performed a quantitative trait locus (QTL) analysis using crosses between two subspecies of beach mice.
Limitations
The study may not capture all genetic factors influencing coloration due to the complexity of genetic interactions.
Participant Demographics
Two subspecies of oldfield mice from the southeastern United States.
Digital Object Identifier (DOI)
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