Figure 3
Population structure of the Capsicum species derived form 746k genomic variants. (a) Phylogenetic reconstruction of the relationships between the accessions. With a few exceptions, clusters correspond to species. (b) Principal component analysis. The first two components separate the three main domesticated species. Clustering within the first two components is not complete, and a number of accessions are positioned in between clusters. The third and the fourth components separate C. pubescens and C. chacoense between them and from the cluster of domesticated species. (c) Model-based admixture analysis in the hypothesis of seven clusters. With the exceptions of few admixed or misplaced individuals, clusters correspond to species and within C. annuum is possible to observe two groups with distinct genetic features.
