Fig 1. Structural properties of SSR loci in 27 meningococcal genomes.
A) Characterization of SSRs by period length and copy number across all 27 assessed N. meningitidis genomes. The number of SSRs for each period length is indicated below the box-plots. B) Copy number distribution of the four different SSRs of period length one(A, C, G and T homopolymer tracts) across all 27 assessed N. meningitidis genomes. The number of SSRs for each base is indicated below the box-plots. C) Occurrence of the most frequent repeat motifs per strain, ordered by median occurrence per strain. Only motifs with a median occurrence per strain of greater than 1.5 are displayed.