Figure 1From: Symbiotic functioning and bradyrhizobial biodiversity of cowpea (Vigna unguiculataL. Walp.) in AfricaUPGMA dendrogram derived from PCR-RFLP of bradyrhizobial DNA in cowpea nodules collected from South Africa, Botswana and Ghana, generated by HaeIII digestion of amplified rDNA products. Scale indicates % similarity.Back to article page