Table 2

Typical duplication time of bacterial organisms according to their mode of respiration

Number of species*

Mean duplication time

Median duplication time

Mean network size

Aerobic bacteria

40

13

3

412

Anaerobic bacteria

18

5.3

1.6

318

Facultative bacteria

41

1.7

0.8

380

Oxygen-dependence annotations were taken from [34]. *Species in this analysis are those for which duplication times are available, the metabolic network was reconstructed (Materials and methods), and their oxygen-dependence group is one of the groups in the table (bacteria species whose oxygen-dependence annotation is 'unknown' or 'microaerophylic' are not shown here).

Freilich et al. Genome Biology 2009 10:R61   doi:10.1186/gb-2009-10-6-r61