Fig. 2

a Manhattan plot for the first model of linear regression, with annotation of the SNPs that are above the selected threshold for the p value \(\left( {5 \times 10^{ - 7} } \right)\) represented as a black line. rs9391637 and rs9295937 overlap on the plot. b Manhattan plot for the second model of linear regression, with annotation of the SNPs that are above the selected threshold for the p value \(\left( {5 \times 10^{ - 7} } \right)\) represented as a black line. rs9391637 and rs9295937 overlap on the plot. c Manhattan plot for the third model of linear regression, with annotation of the SNPs that are above the selected threshold for the p value \(\left( {5 \times 10^{ - 7} } \right)\) represented as a black line