Fig. 1
Genetic structure of parental species and their hybrids. Admixture proportions (qi) based on two clusters (K = 2) estimated by structure (a) and assignment of hybrid class in NewHybrids (b). The plots include the five F1 mother-plants representing all 45 F1 hybrid individuals in the sample (for admixture proportions and assignment of hybrid class of the remaining 40 hybrids see Additional file 1: Table S1 and S2). The offspring of the mother-plants is sorted by mother-plant. The order of the individuals within the different groups is the same in both plots