Q-Q plot of observed versus expected −log₁₀P-values from a genome- wide association analysis for GPT in the Arabian.

<p>The quantile-quantile plot shows the expected distribution (solid line) and the observed −log₁₀P-values plotted against the expected −log₁₀P-values (black dots). The peak value (BIEC2-314665) is located at 64.17 Mb on horse chromosome 15 for the Arabian.