Figure 2

Principal component analyses (PCA) of 313 B . napus varieties based on simple matching distances calculated from the total 4363 SNP loci (a), the 2854 SNP loci mapped on the A genome (b) and the 1509 SNP loci mapped on the C genome (c). PC1 and PC2 are the two first principal coordinates and the proportion of variance explained by these coordinates is indicated in parentheses. Black color states for fodder rape, magenta for Asian spring oilseed rape (OSR), red for European and Canadian spring OSR, dark blue for « 00 » winter oilseed rape (WOSR), light blue for « 0+ » WOSR and green for « ++ » WOSR.