# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.662202 Bacteria.420146 Proteobacteria.78873 Alphaproteobacteria.161540 Sinorhizobium.17153 Sinorhizobium_sp_.6442 sino.6371 sino:SS05631_d65320 Leucyl-tRNA synthetase