Figure 4. Evolutionary relationship of Psg strains to other nine sequenced Pseudomonas syringae strains.

Phylogenetic tree was reconstructed from concatenated sequences of six housekeeping proteins (3154 aa) using Neighbor-Joining (NJ) method. The four major groups as described previously [6] are labeled next to the relevant clades. Genomospecies is defined as previously described by Gardan et al. 1999 [5]. Bootstrap scores greater than 60 are given at each node. The scale bar represents 0.005 amino acids substitutions per site. Pseudomonas fluorescens strain pf-5 was used as an outgroup.