highly significantp=2.2×10 −130
Five genes associated with pigmentary traits were identified in the analysis with highly significant SNP associations: SLC45A2 (rs16891982, β=−0.546, SE=0.021, p=2.2×10 −130 ), IRF4 (rs12203592, β=1.915, SE=0.118, p=2.8×10 −57 ), HERC2 (rs1667394, β=−0.608, SE=0.02, p=2.8×10 −176 ), OCA2 (rs11855019, β=−0.548, SE=0.022, p=2.4×10 −121 ) and MC1R (rs1805007, β=3.615, SE=0.326, p=7.7×10 −22 ) (online supplementary figure S3 ).