Fractions of pseudogenes in the 64 prokaryote genomes. The genomes are divided into three categories: archaea (green), non-pathogenic bacteria (blue) and pathogenic bacteria (purple). The yellow bars represent the fractions of pseudogenes that overlap with hypothetical ORFs, and the green bars represent those that do not overlap. Genomes in each category are sorted by the green bars.
Liu et al. Genome Biology 2004 5:R64 doi:10.1186/gb-2004-5-9-r64