Figure 3

Phylogenetic tree of plant DIR and DIR-like protein sequences. Amino acids of 197 dirigent or dirigent-like (DIR) proteins are analyzed by Maximum Likelihood (ML) using MEGA 5.05 (−ln = 2880.02, model: WAG + F). Subfamilies DIR-a, DIR-b/d, DIR c, DIR-e, DIR-f and DIR-g are indicated by pink, yellow, green, purple, skyblue and pink-purple shading respectively. The AtDIRs are colored in red and BrDIRs are colored in darkgreen. IiDIRs are marked as normal. DIR nomenclature is as follows: Ah, Arachis hypogaea; As, Agrostis stolonifera; At, Arabidopsis thaliana; Br, Brassica rapa; Fi, Forsythia intermedia; Gb, Gossypium barbadense; Hv, Hordeum vulgare; Ii, Isatis indigotica; Nb, Nicotiana benthamiana; Os, Oryza sativa; P, Picea glauca, Picea sitchensis or P. glauca x engelmannii; Pp, Podophyllum peltatum; Ps, Pisum sativum; Sb, Sorghum bicolor; Si, Sesamum indicum; So, Saccharum officinarum; Ta, Triticum aestivum; Tan, Tamarix androssowii; Th, Tsuga heterophylla; Tp, Thuja plicata and Zm, Zea mays.