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. 2010 Oct 11;5(10):e13219. doi: 10.1371/journal.pone.0013219

Figure 1. Manhattan and Quantile-Quantile (QQ) plots.

Figure 1

The plots summarize the genome-wide association results for hip dysplasia (A) and hip osteoarthritis (B). The genome-wide P values (−log10 P) of the F test for the SNP effect are plotted against position on each chromosome. The inset shows QQ plots of the observed P values versus the expected P values under the null hypothesis that there was no association.