Fig. 1.
Manhattan plot for the GWA analysis of episodic memory. The x-axis refers to positions along the genome (separated by chromosome) for each SNP (represented by a dot) included in the analysis. The y-axis refers to the negative logarithm of the p-value for the test of association between each SNP and the quantitative memory phenotype. No SNPs exhibited genome-wide significant association (red line) to the composite episodic memory score, while 40 SNPs exhibited suggestive association (p < 5 × 10−5, blue line). The 5 most significant, independent (r2 < 0.2) SNPs are labeled along with their corresponding genes (if known).