Evaluating coverage of genome-wide association studies - PubMed (original) (raw)

doi: 10.1038/ng1801. Epub 2006 May 21.

Affiliations

• PMID: 16715099
• DOI: 10.1038/ng1801

Evaluating coverage of genome-wide association studies

Jeffrey C Barrett et al. Nat Genet. 2006 Jun.

Abstract

Genome-wide association studies involving hundreds of thousands of SNPs in thousands of cases and controls are now underway. The first of many analytical challenges in these studies involves the choice of SNPs to genotype. It is not practical to construct a different panel of tag SNPs for each study, so the first generation of genome-wide scans will use predefined, commercially available marker panels, which will in part dictate their success or failure. We compare different approaches in use today, and show that although many of them provide substantial coverage of common variation in non-African populations, the precise extent is strongly dependent on the frequencies of alleles of interest and on specific considerations of study design. Overall, despite substantial differences in genotyping technologies, marker selection strategies and number of markers assayed, the first-generation high-throughput platforms all offer similar levels of genome coverage.

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Comment in

• Agnosticism and equity in genome-wide association studies.
  Carlson CS. Carlson CS. Nat Genet. 2006 Jun;38(6):605-6. doi: 10.1038/ng0606-605. Nat Genet. 2006. PMID: 16736010 No abstract available.

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