Fig. 1

Datasets used in this study. a SNP density of iChip and gChip SNPs. The whole genome was partitioned into 0.6 M bins on each chromosome. The middle and inner circles indicate the density of the SNPs on iChip and gChip, respectively. The spikes for iChip depict regions of dense coverage mainly chosen for replication and fine mapping of GWAS loci, while gChip provides a uniform coverage with higher average density. b Partitioning of data into sets of increasing sample size and number of SNPs. Samples were split into four subsets with increasing number of individuals and SNPs. The smallest subsets (dotted box) include samples genotyped on both gChip and iChip and SNPs overlapping between chips