Impact of Genotyping Error on Linkage Mapping for Complex Traits
Author Information
Author(s): Lebrec Jérémie JP, Putter Hein, Houwing-Duistermaat Jeanine J, van Houwelingen Hans C
Primary Institution: Leiden University Medical Center
Hypothesis
How does genotyping error affect linkage mapping in selective designs for continuous traits?
Conclusion
Genotyping error can significantly impact type I error and power in selective designs for continuous traits, but certain designs are more robust against these errors.
Supporting Evidence
- Genotyping error leads to decreased power in extremely concordant designs.
- Genotyping error can increase type I error in extremely discordant designs.
- Designs involving both EC and ED sib pairs are relatively immune to genotyping error.
Takeaway
If scientists make mistakes when reading genes, it can mess up their studies on how traits are passed down in families. Some study designs are better at handling these mistakes than others.
Methodology
The study used an identity-by-descent regression-based paradigm to analyze the effects of genotyping error models on linkage testing in sibling pairs.
Potential Biases
The study acknowledges potential biases due to the assumptions made about genotyping error rates and their uniformity across markers.
Limitations
The study assumes complete IBD information and may not generalize to all real-life situations where IBD is uncertain.
Digital Object Identifier (DOI)
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