For Problem 2, simulated family data were provided for a common oligogenic disease that was defined by imposing a threshold, T, on a quantitative trait, 41. Every individual with a value of Q1 > T (where T = 87.5) was defined as affected. Participants were told that three other quantitative traits
GAW10: Simulated family data for a common oligogenic disease with quantitative risk factors
โ Scribed by Jean W. MacCluer; John Blangero; Thomas D. Dyer; Marcy C. Speer
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 33 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0741-0395
No coin nor oath required. For personal study only.
โฆ Synopsis
GAW10 Problem 2 involves a simulated common disease defined by imposing a threshold, T, on a quantitative trait, Q1. Every individual with a value of Q1 $ T (where T = 40) is defined as affected. Also thought to be associated with the disease as intervening variables are four other quantitative traits (Q2, Q3, Q4, and Q5) and an environmental factor (EF). Each individual has genotypes for 367 highly polymorphic markers on 10 chromosomes. The tasks for GAW10 were to characterize the genetic and environmental contribution to Q1 (and the disease), Q2, Q3, Q4, and Q5, and to localize any single genes that have detectable effects. Multiple replicates provided an opportunity to address questions of power and false positive rates.
๐ SIMILAR VOLUMES
All three simulated loci influencing the quantitative variables 41, 42, and 4 3 were successfully mapped by using a strategy of covariate adjustment and segregation analysis, coupled with association analyses and lod-score analyses.