# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.462784 Bacteria.146233 Proteobacteria.361017 Alphaproteobacteria.161457 Sinorhizobium.13800 Sinorhizobium_meliloti.7430 smeg.2339 smeg:C770_GR4Chr2383 Reverse transcriptase (RNA-dependent DNA polymerase) OC.462784 Bacteria.146233 Proteobacteria.361017 Alphaproteobacteria.161457 Sphingomonas.24121 Sphingomonas_wittichii.5861 swi.1098 swi:Swit_1069 hypothetical protein