Fig. 3. Principal component analysis (PCA) in the WGS panel (a) and in the diversity panel (b).

a PCA of 204 V. vinifera whole genome resequenced genotypes based on 7.9 M SNPs. b PCA of 1445 V. vinifera genotypes based on a subset of 6357 pre-ascertained SNPs in the diversity panel and in common with the WGS panel. Sequenced samples are indicated as open (cultivated varieties) and solid (wild accessions) squares. Additional cultivated varieties are indicated as gray crosses in b. Samples with uncertain assignment in their literature reports are reported as “faux sauvage”: 1, sylvestris FR B00ERBY¹⁵; 2, KE–06¹⁸; 3, Vigne sauvage faux “Mouchouses 1”; 4, “Tighzirt 1”; 5, “Fethiye 58 64”¹⁵ and collectively indicated as solid circles in b. The 2-letter codes (αβ) indicate countries of origin: CH Switzerland, DE Germany, DZ Algeria, ES Spain, FR France, GE Georgia, GR Greece, HU Hungary, IT Italy, MA Morocco, SK Slovakia, TN Tunisia, TR Turkey. Source data are provided as a Source Data file.