# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.168171 Bacteria.366715 Proteobacteria.175858 Alphaproteobacteria.31035 Bradyrhizobium.21616 Bradyrhizobium_sp_.30382 bro.3245 bro:BRAD285_3808 conserved protein of unknown function