Figure 1.
Summary plots of GWAS results. (A) Quantile–quantile (Q–Q) plot of the negative logarithm of the observed (y-axis) and expected (x-axis) P value for each SNP, where the red line represents the null hypothesis of no associations. B) Manhattan plot showing association signals in TERC, TERT and RTEL1 regions. The –log10(P values) are plotted against physical position for 6.3 million SNPs. The red line indicates the genome-wide significance threshold at P=5×10–8. We used a threshold of P=1×10–5 to define suggestive signals (blue line). GWAS, genome-wide association study.