Fig. 3.

Unrooted, NJ-based tree of class II glutaredoxins in photosynthetic organisms. The analysis was performed using MEGA 4. Branch lengths are proportional to phylogenetic distances. The name of the species is abbreviated with a two-letter code, except for the three Osterococcus species (Ost9901, OstRCC809 and Ostta). The cyanobacterial sequences form an independent group with two branches, whereas most eukaryote CGFS Grxs are clustering in the previous Grx subgroups described for higher plants, Grx S14 to S17. As for class I Grxs, a few algal members are isolated