SNPs associated with skull phenotypes (PCs).

Principal component (PC). %varSkull is the proportion of variation in skull shape explained by the SNP. This value was calculated in a multivariate regression of shape on the SNP genotype. The candidate genes were identified based on their role in bone morphogenesis (see methods). Empty cells (-) mean no compelling candidate gene emerged. The total set of genes in the QTL regions is shown in S4Table† Regions that overlap with Maga et al 2015* Regions that overlap with Attanasio et al 2014 using a window of 500Kb around the focal SNP** Regions that overlap with Attanasio et al 2014 using a window of 1Mb around the focal SNPColumns of the table show the SNP with the lowest p-value per QTL, its base-pair position, p-value calculated in GEMMA, and the proportion of total skull shape variation explained by the SNP (%varSkull).