Fig. 2From: Distribution, genetic diversity and potential spatiotemporal scale of alien gene flow in crop wild relatives of rice (Oryza spp.) in ColombiaResults of species-specific principal coordinates analysis based on the Bruvo genetic distance and Bayesian admixture proportions identified by STRUCTURE (Pritchard et al. 2000) of individual plants of a O. alta, b O. glumaepatula, c O. grandiglumis, d O. latifolia. The genetic groups in the PCoA plots were identified through hierarchical cluster analysis (>95% branch support; see Additional file 3: Figure S1). Symbols and colors used in the PCoA plots are associated with STRUCTURE clusters for different values of KBack to article page