Fig. 2

Principal coordinate analysis of 121 Erianthus accessions based on the Bruvo distance between individuals calculated in Polysat software. Colors indicate four groups corresponding to those in Fig. 1 at K = 4. The admixture group is indicated by grey circles. Map numbers of seven accessions assigned to the admixture group are shown next to the circles. Two accessions with ambiguous phenotypic clustering are marked with asterisks next to the map numbers. Dashed circles indicate grouping (G1–G4). Numbers on each axis indicate the proportion of variance explained by each principal coordinate