# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.661240 Bacteria.365419 Proteobacteria.112338 Alphaproteobacteria.145737 Neorhizobium.5336 Neorhizobium_galegae.5268 ngg.994 ngg:RG540_CH09770 Hypothetical protein