Figure 7
From: Insights into opium poppy (Papaver spp.) genetic diversity from genotyping-by-sequencing analysis

Diversity in alkaloid profiles of Papaver accessions. (a) The variability in alkaloid content and (b) composition of poppy capsules. (c) Two-dimensional PCA score plot showing the diversity in alkaloid composition. Axes are labelled with the percentage of variation explained by the two PCs. Colours represent the five subpopulations identified by STRUCTURE analysis (Fig. 5). Accessions for which no GBS data was available are indicated with grey dots. The P. setigerum accessions (PAP 229A and PAP 255) and the six accession with the highest codeine levels (PAP 151, PAP 152, PAP 150, PAP 200, PAP 739, PAP 149, and PAP 353) are indicated. SP, subpopulation.