Fig. 3.

Weighted neighbour-joining dendrogram for wild germplasm accessions of the P. vulgaris secondary gene pool. The tree was outlined from Jaccard’s genetic distance calculated for polymorphisms in 4208 DArT markers. The two major clades (A and B) and their internal subclades are shown as follows: P. vulgaris (green lines) from Guatemala (G1), Mexico (G2) Peru (G3); P. dumosus (pink lines) (G4); P. coccineus (blue lines) from Guatemala (G5), from Mexico (G6) and P. albescens (orange lines) (G7). The tertiary gene pool species P. acutifolius was used as an outgroup (grey lines). Dark bars indicate branches supported by bootstrap values >90 %. The line segment with the number 0·1 shows the length of branch that represents an amount genetic change of 0·1.