Fig. 1

Analysis performed using an admixture model in STRUCTURE 2.3.4 software with correlated allele frequencies. The clustering profile obtained at K = 3 is indicated by different colors. Each of the 34 genotypes is represented by a single column broken into colored segments with lengths proportional to each of the K inferred gene pools. The scale on the left indicates the membership coefficients (Q) used to allocate the genotypes into clusters. The genotypes were named according to the annotated numbers listed in Table 1. Cluster I (from 6 to 9), Cluster II (from 21 to 19) and Cluster III (from 27 to 32)