Fig. 4

Manhattan plot of birth weight variance attributed to overlapping windows of 20 consecutive SNPs. The dashed horizontal line represents the \( 10\mathit{\mathsf{I}}\mathit{\mathsf{Q}}\mathit{\mathsf{R}}+\mathit{\mathsf{Q}}\mathsf{3} \) threshold, where \( \mathit{\mathsf{I}}\mathit{\mathsf{Q}}\mathit{\mathsf{R}} \) and \( \mathit{\mathsf{Q}}\mathsf{3} \) are the interquartile range and the third quartile of the distribution of SNP window variances, respectively