Native American ancestry proportions in the Quebec regions.

Here Quebec regional/ethnocultural groups are presented with (number of individuals with genotype data; number of individuals with genealogical data). For each population, expected Native American genetic contribution was estimated using genealogical data. The Native American ancestry proportions in the Quebec subpopulations was estimated with 1) the ADMIXTURE software [43] 2) the HAPMIX software [39], and 3) IBD sharing analysis using the fastIBD software [41]. For each measure, we tested for differences among subpopulations using a Kruskal-Wallis test (Table S3).