Table 1

Number of clusters of orthologous genes

S. pneumoniae

S. pneumoniae , S. mitis, S. oralis, S. infantis

S. pneumoniae , S. mitis, S. oralis, S. infantis, S. Sanguinis, S. pyogenes


Number of genes

3,221

4,904

7,031

Core

1,666 (52%)

1,111 (23%)

522 (7%)

Dispensable

1,555 (48%)

3,793 (77%)

6,509 (93%)

Strain-specific

389 (12%)

1,565 (32%)

3,552 (51%)


We report the total number of clusters of orthologous genes and the number of core, dispensable (that is, missing in at least one strain), and strain-specific genes for S. pneumoniae alone, for S. pneumoniae, S. mitis, S. oralis, and S. infantis, and for S. pneumoniae, S. mitis, S. oralis, S. infantis, S. sanguinis and S. pyogenes.

Donati et al. Genome Biology 2010 11:R107   doi:10.1186/gb-2010-11-10-r107

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