Figure 1.

Genetic structure of the 104 accessions of the pea collection using discriminant analysis on principal components (DAPC). After filtering, a set of 11,218 SNPs was used for these analyses (see main text). The first discriminant axis segregated wild vs. cultivated spring or winter peas. The wild group comprises wild or semi-wild accessions and landraces from centers of domestication. The second axis mainly discriminates spring and winter cultivated peas. Note the ambiguous positions of three landraces or traditional cultivars, “JI190” originating from Sudan, “Pisum sativum-Hibernicum JI1846” from Egypt and “Capsicum” from Azerbaidjan and of two winter European cultivars “Hativer” and “Cheyenne”.