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Cold Spring Harbor Laboratory Press, Genome Research, 11(19), p. 2075-2080, 2009

DOI: 10.1101/gr.094680.109

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Rapid inexpensive genome-wide association using pooled whole blood

Journal article published in 2009 by Jamie E. Craig, Alex W. Hewitt, Amy E. McMellon, Anjali K. Henders ORCID, Lingjun, Lingjun Ma, Leanne Wallace, Shiwani Sharma, Kathryn P. Burdon ORCID, Peter M. Visscher, Grant W. Montgomery, Stuart MacGregor
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Genome-wide association studies (GWAS) have now successfully identified important genetic variants associated with many human traits and diseases. The high cost of genotyping arrays in large data sets remains the major barrier to wider utilization of GWAS. We have developed a novel method in which whole blood from cases and controls, respectively, is pooled prior to DNA extraction for genotyping. We demonstrate proof of principle by clearly identifying the associated variants for eye color, age-related macular degeneration, and pseudoexfoliation syndrome in cohorts not previously studied. Blood pooling has the potential to reduce GWAS cost by several orders of magnitude and dramatically shorten gene discovery time. This method has profound implications for translation of modern genetic approaches to a multitude of diseases and traits yet to be analyzed by GWAS, and will enable developing nations to participate in GWAS.