Autor: |
Wicks, Jacqueline, Treloar, Susan A., Martin, Nicholas G. |
Zdroj: |
Twin Research and Human Genetics; April 2004, Vol. 7 Issue: 2 p211-216, 6p |
Abstrakt: |
AbstractThe aim of this study was to determine whether identity-by-descent (IBD) information for affected sib pairs (ASPs) can be used to select a sample of cases for a genetic case-control study which will provide more power for detecting association with loci in a known linkage region. By modeling the expected frequency of the disease allele in ASPs showing IBD sharing of 0, 1, or 2 alleles, and considering additive, recessive, and dominant disease models, we show that cases selected from IBD 2 families are best for this purpose, followed by those selected from IBD 1 families; least useful are cases selected from IBD 0 families. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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