Figure 3

UPGMA tree based on Prevosti’s Genetic distance (see scale at top of tree) for individuals from kochia populations in Alberta, Saskatchewan and Manitoba. Population of origin is represented by the coloured blocks at the tips, while EPSPS:ALS ratio is represented by the size of the bar. Red branches belong to individuals with an EPSPS:ALS ratios of 4 or greater, which are considered resistant to glyphosate, and blue dots indicate nodes with 80 or greater bootstrap support.