Figure 10.

Variation of the number of dispensable and core genes upon the addition of new species or strains. Strains are added sequentially, starting with the 44 S. pneumoniae strains followed by the S. mitis (region I), S. oralis and S. infantis (region II), S sanguinis and S. pyogenes (region III) strains.

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