Fig. 1
From: The role of genetically predicted serum iron levels on neurodegenerative and cardiovascular traits

Manhattan plot of the results from the GWAS meta-analysis of serum iron using a sample-size weighted z-score method resulting in a total sample size of 263,167 individuals of European-like genetic ancestry. The dashed line presents the threshold to denote genome-wide significance (5 × 10–8). We replaced extremely significant values in our analysis with a minimum non-zero value that plotting libraries can handle. Note rescaling on the y-axis represented by two horizontal lines (“=”).