Fig. 1: Abundance of monoterpenes in yellow and cola mutants.

Leaf (a) and root (b) tissue of seven plants was analysed by headspace GC-MS. The results are presented in box and whisker plots (min to max, show all points) with a fold change of the abundance on a log2 scale. The data are statistically analysed with Mann–Whitney test (*P < 0.05, **P < 0.01, ***P < 0.001, not significant (ns) and not detectable (nd))