Gene set-based analysis of polymorphisms: finding pathways or biological processes associated to traits in genome-wide association studies

TitleGene set-based analysis of polymorphisms: finding pathways or biological processes associated to traits in genome-wide association studies
Publication TypeJournal Article
Year of Publication2009
AuthorsMedina I, Montaner D, Bonifaci N, Pujana MA, Carbonell J, Tarraga J, Al-Shahrour F, Dopazo J
Journal TitleNucl. Acids Res.
Volume37
Issuesuppl_2
PagesW340-344
Keywordsbabelomics, gene set, GESBAP, pathway-based analysis, SNP
Abstract

Genome-wide association studies have become a popular strategy to find associations of genes to traits of interest. Despite the high-resolution available today to carry out genotyping studies, the success of its application in real studies has been limited by the testing strategy used. As an alternative to brute force solutions involving the use of very large cohorts, we propose the use of the Gene Set Analysis (GSA), a different analysis strategy based on testing the association of modules of functionally related genes. We show here how the Gene Set-based Analysis of Polymorphisms (GeSBAP), which is a simple implementation of the GSA strategy for the analysis of genome-wide association studies, provides a significant increase in the power testing for this type of studies. GeSBAP is freely available at http://bioinfo.cipf.es/gesbap/

URLhttp://nar.oxfordjournals.org/cgi/content/abstract/37/suppl_2/W340
DOI10.1093/nar/gkp481