Neighbour-joining tree for two hemp cultivars and two marijuana strains. The tree was plotted in MEGA5  using the maximum composite likelihood of SNV nucleotide substitution rates, calculated based on the concatenated SNV sequences in each variety, as a distance metric. The topology of the tree reveals a distinct separation between the hemp and marijuana strains.
van Bakel et al. Genome Biology 2011 12:R102 doi:10.1186/gb-2011-12-10-r102