Fig. 2
From: Genomic consequences of selection and genome-wide association mapping in soybean
Population structures of soybean landraces and improved lines. a PCA plots of the first two components of 342 accessions of soybean landraces. b NJ tree of soybean landraces. The 6 subgroups identified from the tree are color-coded in a and b. c PCA plots of the first two components of 1062 accessions of improved lines. d NJ tree of improved lines. The 8 subgroups identified from the NJ tree are color-coded in c and d