A protocol is described that uses Illumina's Infinium assays to perform large-scale genotyping. These assays can reliably genotype millions of SNPs across hundreds of individual DNA samples in three days. Once generated, these genotypes can be used to check for associations with a variety of different diseases or phenotypes.
Adler, A. J., Wiley, G. B., Gaffney, P. M. Infinium Assay for Large-scale SNP Genotyping Applications. J. Vis. Exp. (81), e50683, doi:10.3791/50683 (2013).