Figure 2

Unrooted tree of 127 tetraploid wheat accessions based on single nucleotide polymorphisms (SNPs) markers genetic distance and colored according to discriminant analysis of principal components (DAPC) clusters. Each tree branches color corresponds to the cluster to which the accession belongs: red for cluster 1, yellow for cluster 2, blue for cluster 3, green for cluster 4, grey for cluster 5 and orange for cluster 6.