Fig. 9.

GIs between the homologs of P9601_00511 and P9601_00611 in five Prochlorococcus strains

(a) Schematic representation of the GIs between the homologs of P9601_00511 and P9601_00611 in five Prochlorococcus strains. The location and orientation of the genes flanking the GIs are indicated by spotted and striped thick arrows, and the corresponding orthologs are indicated by the same pattern. The genes within the GIs are indicated by gray thick arrows. Direct repeats are indicated by thin arrows. “1” indicates the position of the repeated sequences of the 3′ ends of genes, and the other numbers indicate the positions of the direct repeats. Gray lines indicate homologous sequences; (b) The secondary structure of the 3′ end of P9601_00511. The segment between two arrows is identical with the direct repeat; (c) The alignment of the 3′ end of P9601_00511 and its orthologs in PMC, PMED4, PMG, and PMI and their direct repeats. The 3′ ends and the direct repeats are in the box. The regions in the right of the box are intergenic sequence