# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.189480 Bacteria.574759 Proteobacteria.77943 Alphaproteobacteria.122872 Mesorhizobium.9508 Mesorhizobium_sp_.1671 meso.1502 meso:BSQ44_07650 sodium:proton antiporter