Figure 3From: Symbiotic functioning and bradyrhizobial biodiversity of cowpea (Vigna unguiculataL. Walp.) in AfricaPhylogenetic relationship among 16S-23S rDNA IGS types of from cowpea nodules, reference strains and more closed isolates based upon aligned 16S-23S rDNA IGS region sequences constructed as rooted tree using neighbour-joining method. The bootstrap values (expressed as percentage of 1000 replications) shown at nodes are those greater than 70%.Back to article page