Figure 6

The maximum likelihood phylogenetic relationships of root nodule rhizobial isolates from Wiborgia obcordata (blue), Wiborgia sericea (blue) and Wiborgiella sessilifolia (green) based on Mesorhizobium-gyrB sequence analysis. Test isolates are shown in bold. The significance of each branch is indicated by a bootstrap value = > 50 for each node (1000 replicates). The scale bar represents the number of changes per nucleotide position.