# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.459197 Bacteria.81269 Proteobacteria.159057 Alphaproteobacteria.225075 Mesorhizobium.7298 mlo.6073 mlo:mlr8182 transcriptional regulator OC.459197 Bacteria.81269 Proteobacteria.159057 Alphaproteobacteria.225075 Mesorhizobium.7298 mamo.3123 mamo:A6B35_15810 transcriptional regulator