Size ranges for the sequences
available at RISSC according to: (A) the whole
database; (B) each phylogenetic group. Chloroplasts
have the highest variability in size (August 30, 2000). Phylogenetic
groups: 1, high GC Gram+ bacteria; 2, low GC
Gram+ bacteria; 3, Planctomyces/Chlamydia;
4, spirochaetes; 5, α subdivision; 6, β subdivision; 7, γ subdivision;
8, δ/ɛ subdivision;
9, Cytophaga/Flexibacter/Bacteroides; 10, Thermotogales;
11, Aquificales; 12, unidentified; 13, cyanobacteria; 14, chloroplasts;
15, Euryarchaeota; 16, Crenarchaeota. *, plastids.