Figure 1.

Map of a region of the R. capsulatus chromosome containing genes necessary for GTA production. Locations of Tn5 and KIXX cartridge insertion found to abolish GTA production are shown. All ORFs are predicted to be transcribed left to right except for trmU. ORFs with weak or no similarity to known genes are shown in red or pink; ORFs homologous to known phage genes are shown in light blue; ORFs highly homologous to known cellular genes are shown in yellow. All predicted ORFs match R. capsulatus codon usage well, as defined by the highly expressed photosynthesis genes, except for those shown in pink (orfg17 and orfg19). More detailed information about sequence similarities is given in Table 1. Information about the sources of the DNA sequences used to construct this figure is in the Results section.