Fig. 1

Essential amino acid and selected B vitamin and co-factor biosynthetic metabolic capabilities of obligate symbiotic consortia of different aphid species. Diagram summarising the metabolic capabilities of Buchnera from “mono-symbiotic” Aphidinae aphids (Aph) and P. nigronervosa (Pnig). “Aph” rows are a collapsed representation of several Aphidinae species (see Supplementary Table S3 in Additional file 1). The names of genes coding for enzymes involved in the biosynthetic pathway are used as column names. Each row’s boxes represent the genes coded by the Buchnera genome. On the bottom, lines underlining the genes involved in the pathway leading to the compound specified by the name underneath the line. For amino acids, its three-letter abbreviation is used