Fig. 6

Results of STRUCTURE analysis of Scots pine nSSR data. a (i) Mean posterior probability values of K (L(K)), error bars are ± S.D. (ii) Delta K values used to infer the main structure of the data. b Frequency of K groups within each sampling population, including those located on the continent (inset). Pie charts in Scotland and Norway do not indicate an exact sampling location, but are generic origins plotted for comparison’s sake. c Bar plots of admixture coefficients for each sampled individual