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Review
. 2002 Oct;61(1-2):53-71.
doi: 10.1016/s0301-0511(02)00052-2.

Gene finding strategies

Jacqueline M Vink  1 , D I Boomsma
Affiliations
Review

Gene finding strategies

Jacqueline M Vink et al. Biol Psychol. 2002 Oct.

Abstract

Both linkage and association methods have been used to localise and identify genes related to behaviour and other complex traits. The linkage approach (parametric or non-parametric) can be used for whole genome screens to localise genes of unknown function. The parametric linkage approach is very effective for locating single-gene disorders and is usually based on large family pedigrees. The non-parametric method is useful to detect quantitative trait loci (QTLs) for complex traits and was originally developed for sib pair analyses. Genetic association studies are most often used to test the association of alleles at a candidate gene with a disease or with levels of a quantitative trait. Allelic association between a trait and a marker can be studied in a case-control design, but because of possible problems due to population stratification, within-family designs have been proposed as the optimal test for association.

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