. 2015 Jul 10;7(8):2173–2187. doi: 10.1093/gbe/evv135

Table 4.

Frequencies of Pseudogene Maintenance

Species	PCP (%)^a
Bacillus cereus	40.17
Campylobacter jejuni	71.84
Clostridium botulinum	51.79
Corynebacterium diphtheriae	47.47
Corynebacterium pseudotuberculosis^b	96.74
Eschirechia coli–Shigella	44.67
Francisella tularensis^b	95.00
Haemophilus influenzae	75.30
Listeria monocytogenes	39.07
MTBC^b	84.56
Neisseria meningitidis	60.99
Pseudomonas aeruginosa	37.67
Streptococcus pneumoniae	71.49
Yersinia pestis^b	67.56

^aThe PCP metric was calculated by focusing on pangenes found, at the protein level, in 75% or more of strains within each species, but not in all strains of that species. PCP was calculated as the proportion of genomes from which such a pangene was absent at the protein level, but was still found at the DNA level.

^bClonal species.