Linkage disequilibrium mapping of quantitative-trait Loci by selective genotyping.

Chen, Zehua; Zheng, Gang; Ghosh, Kaushik; Li, Zhaohai · Am J Hum Genet · 2005

basic_science · Level V

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Abstract

The principles of linkage disequilibrium mapping of dichotomous diseases can be well applied to the mapping of quantitative-trait loci through the method of selective genotyping. In 1999, M. Slatkin considered a truncation selection (TS) approach. We propose in this report an extended TS approach and an extreme-rank-selection (ERS) approach. The properties of these selection approaches are studied analytically. By using a simulation study, we demonstrate that both the extended TS approach and the ERS approach provide remarkable improvements over Slatkin's original TS approach.

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