In this study, deCODE used its population -
wide genealogy database and proprietary statistical tools to determine the parent of origin of a number of SNPs in some 40,000 Icelandic participants in the company's gene discovery programs.
Using deCODE's national
genealogy database, 100 of these patients were found to fall into 39 families, and a genome -
wide scan was conducted with 1000 microsatellite markers.