Figure 4.

Conservation of 'Sakai-specific' singleton genes in each functional group. 'Sakai-specific' singleton genes were categorized according to the COG classification. In each functional category, the numbers of genes fully conserved, variably absent or present, and fully absent are shown for each serotype.

Ogura et al. Genome Biology 2007 8:R138   doi:10.1186/gb-2007-8-7-r138
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