Supporting Information (SI) Appendix - Proceedings of the National ...

Figure S7: Evaluation of authenticity of sylvestris: PCA of vinifera and sylvestris. PCA was
performed on 583 unique vinifera cultivars and 59 sylvestris using 2958 LD-pruned SNPs. The
proportion of the variance explained by each PC is shown in parentheses along each axis. The
geographic origin of the samples is described in the legend. The black arrow refers to a vinifera
cultivar, “Beli Potok”, that is likely mislabeled. See the section “Supplementary Text:
Authenticity of Vitis vinifera subsp. sylvestris” for interpretations of this plot and an explanation
of Olmo’s “wild vinifera”.