Figure 2

Posterior probability (q) for all individuals identified as putative hybrids by at least one of the method–threshold (Tq) combination. Each individual is represented by a vertical bar partitioned into segments, the length of which describes (a) the estimated membership proportions for each parental species (Q. suber and Q. ilex) by STRUCTURE and (b) the estimated probability of belonging to the parental species and the three hybrid classes (F1, first backcross with each of the parental species) by NEWHYBRIDS. Individuals are identified by a population code (see Table 1) and ID number. ^†Classified as hybrid with Tq=0.90, ^‡Classified as hybrid with Tq=0.75.