Fig. 1.

a CIM − log10(p values) profile of the EU-NAM M4 parental QTL analysis. b Within environment parental QTL allelic significance along the genome. Wald test p values of the parental allelic substitution effects after transformation into a colour code (z). If p-val $\in$ [${10}^{-6}$; 0.05]: $z=-log10(p-\text{val})$. If p-val $<{10}^{-6}$: $z=6$ to prevent the colour scale from being determined by high significant values. The colours red (positive) and blue (negative) correspond to the sign of the QTL effect (colour figure online)