Members of the Admixture group made different choices in the genomic markers used for analyses. Two groups [Thornton et al., 2013; Culverhouse et al., 2013] used SNP genotype data across all of the odd autosomes. The remaining three groups restricted their analyses to chromosome 3, the designated chromosome for GAW18 participants who analyzed a single chromosome. In particular, Chen et al. [2013] analyzed SNP genotype data, Yorgov et al. [2013] analyzed sequence data, and Huang and Tseng [2013] used both sequence and SNP genotype data from chromosome 3.
