Frequency of the different genotypic classes within samples, according to the Structure or NewHybrids analysis.

The Structure-classes, corresponding to five non-overlapping classes of values of the co-ancestry coefficient Q were defined to characterize the individual’s admixed status: class 1 = [0–0.2]; class 2 = [0.2–0.4]; class 3 = [0.4–0.6]; class 4 = [0.6–0.8]; class 5 = [0.8–1]. As a rule of thumb, classes 1 and 5 should correspond to CSE Europe and NW Italy parental genotypes, respectively; classes 2 and 4 should correspond to backcross genotypes and class 3 should correspond to F1 and admixed genotypes of 2nd, 3rd, 4th and 5th generations. NewHybrids classes correspond to six genotypic classes: two parental classes (NW Italy and CSE Europe), F1 and F2 admixed and two classes of backcrosses (Bx-NW Italy and Bx-CSE Europe corresponding to the offspring of F1 and NW Italy matings or F1 and CSE Europe matings, respectively).
Frequency of the different genotypic classes within samples, according to the Structure or NewHybrids analysis.