# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.40649 Bacteria.574319 Proteobacteria.74597 Alphaproteobacteria.138891 Phaeobacter.3910 Phaeobacter_inhibens.3035 pga.179 pga:PGA1_262p01740 putative peptide ABC transporter, ATP-binding protein