Fig. 3.

Manhattan plot from the marginal epistasis test. The negative log10 of the probabilities from the Davies method (−log₁₀(p)) is shown for each marker. This test estimates the epistatic variance between a given marker and all other markers. The plain red line represents the chosen threshold of −log₁₀(2.5 × 10⁻⁴), all the markers with a LOD scores above the threshold are included in the pairwise comparisons