Distribution of homolog synteny clusters and annotated clusters of orthologous groups. (A) Synteny of homologs in the genomes of VS-SUP05 and six closely related SUP05 bacteria. (B and C) Distribution of homologs among the genomes of VS-SUP05 and six closely related SUP05 bacteria. EBS, endosymbiont of Bathymodiolus septemdierum strain Myojin knoll; CRM, “Candidatus Ruthia magnifica” strain Cm; CVO, “Candidatus Vesicomyosocius okutanii” HA; CTA, “Candidatus Thioglobus autotrophicus” strain EF1; CTSGG, “Candidatus Thioglobus singularis” isolate GG2; CTSPS, “Candidatus Thioglobus singularis” PS1.