Figure 3From: The glutamine synthetase gene family in PopulusRelationships between poplar and other GS gene families in plants. Phylogenetic analyses of predicted full-length protein sequences were performed using the neighbor joining method. Tree was constructed as described. Pt: Populus trichocarpa. Os: Oryza sativa. Vv: Vitis vinifera. Sb: Sorghum bicolor. At: Arabidopsis thaliana. Ps: Pinus sylvestris. Psi: Picea sitchensis.Back to article page