Fig. 2

Identification of conifer GUX enzymes. a Phylogenetic analysis of putative dicot (green) and gymnosperm (blue) GUX enzymes. b Similarity matrix analysis for the gymnosperm and angiosperm GUX enzymes. A similarity score is indicated for each pair. Red colour denotes highest similarity. Pairs with lowest similarity are marked in green. PGSIP8, an Arabidopsis GT8 not in the GUX clade, was used as an outgroup