Using sib-pairs and parent-pairs data, a quantitative trait can be tested for the existence of a major locus under the mixed model of MORTON and B ~C L E A N (1974). The basic idea is t j obtain the two conditional likelihoods for sib-pair differences and parent-pair differences provided that it is
Complex Segregation Analysis on Multi-Modal Distributions
✍ Scribed by Dr. J. J. Tai; Prof. Dr. A. J. Gross
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 370 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0323-3847
No coin nor oath required. For personal study only.
✦ Synopsis
By using eib-pairs and parent-pairs data, proposed a method to test the existence of a 2-allele major locus for a quantitative trait. This method is extended to include three alleles at a major locus in this paper. One may perform this extension in a feasible and practical manner. To show the advantage of this extension, 8 simulated data set of nuclear families from a 3-allele ordered dominant (i.e., A > B, A =-W and B > W in our notation) major locus model for a quantitative trait is analyzed by a 2-allele codominant major locus mixed model and a 3-allele ordered dominant major locus mixed model. The result shows that our method can distinguish between ambiguous trimodal distributions.
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