# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.282679 Bacteria.1201622 Proteobacteria.745451 Gammaproteobacteria.370546 Shewanella.11960 Shewanella_putrefaciens.3614 shp.2607 shp:Sput200_2698 hypothetical protein