# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.40821 Bacteria.24252 Proteobacteria.41404 Alphaproteobacteria.106974 Bradyrhizobium.23227 aol.4367 aol:S58_44210 dipeptide transporter; K02031 peptide/nickel transport system ATP-binding protein