Fig 5. Overlap of conserved genes (this work) with core set proteins of Shi and Falkowski [7], structural genes of Martin et al. [35] and essential genes of Rubin et al. [18] shown for S. elongatus PCC 7942 for which experimental data is available.

(A) Overlap of conserved genes (this work), core set proteins [7] and structural genes [35]. (B) Conserved genes (this work) and essential genes [18]. (C) Conserved genes without clustering of microorganisms and removing the microorganism redundancy and the overlap with essential genes [18].