Fig. 1.

The population structure of C. sativa. a) Genome-wide PCA showing clustering and classification of samples. Color of points indicates subpopulation assignment while triangles indicate samples obtained from the Institute of Plant Genetics. b) Correlation between PC1 and mean % total THC for 71 accessions. The black line indicates the regression slope while the gray surrounding area indicates the 95% confidence interval. c) Bar plots showing the comparison of the mean (± standard error) proportion of segregating sites at SCOs. Letters above bars indicate significance of Tukey-adjusted pairwise comparisons such that subpopulations with different letters possess significantly different proportions of segregating sites.