Figure 3

Genotype–phenotype associations of four representative traits mapped in the Italian hybrid zone. Depicted are ΔAIC from single-marker regression analyses, with values <0 truncated to zero. Dark gray lines, additive model; light gray lines, dominant/recessive model. Marker loci with ΔAIC values ⩾4 (marked by horizontal line) are labeled. Squares indicate markers that were included in final multivariate regression models (Table 3); dark gray, additive component; light gray, dominant/recessive component; filled squares, relative importance >0.5. Tick marks on x axis indicate markers according to their relative map position along chromosomes I to XIX (separated by gray vertical lines); black tick marks, codominant markers; gray tick marks, dominant markers. For additional traits see Supplementary Figure S4.