Fig. 2

Neighbor-joining dendrogram based on Nei’s standard genetic distance using 134 molecular markers on 20 wild species of peanut. The samples are colored to indicate the overall grouping of species by genome type (dark blue: A, pink: E, grey: K, green: H, light blue: B D F). The same colors were used for each sample in PCA and 3D-PCoA analyses. Only bootstrap values higher than 50 are shown at the nodes. For graphic clarity the species names were shortened, please see List of Abbreviations. Species names are followed by PI, genome type and Section (Ar: Arachis; Er: Erectoides; He: Heteranthae; Pr: Procumbentes; Rh: Rhizomatosae). 98 good-quality markers that discriminated genomes follow the same color code in Additional file 4: Table S4