Additional file 6: Figure S4. of UGT74S1 is the key player in controlling secoisolariciresinol diglucoside (SDG) formation in flax

Phylogenetic relationship among 231 flax UGTs and depicting 15 groups. Sixty-eight UGTs with relatively short sequences were excluded. The four main clusters are indicated by alpha numeric numbers 1–4 and the different groups are indicated by alphabetic letters A-O around and inside the circular tree. UGT74S1 belongs to a small gene family highlighted in red within group L and is marked with an asterisk. (TIF 8558 kb)