Fig. 6: Branch-specific selection on the KNAT2/6 gene.
From: Ectopic cambia in wisteria vines are associated with the expression of conserved KNOX genes

Rooted tree fitted for branch models for the KNAT2/6 gene investigated under selection analysis. A unique omega value (dN/dS ratio, ω) is assigned per branch (model 1). Branches in red indicate ω > 1 (positive selection; indicated by arrows), and blue branches indicate ω < 1 (purifying selection).