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. 2011 Nov 24;1:169. doi: 10.1038/srep00169

Figure 2. Histogram reporting the proportion of single nucleotide variants with minor alleles seen one or more times in the 39 worldwide B. anthracis strains sequenced.

Figure 2

This site frequency spectrum shows an excess of rare single nucleotide variants (blue) relative to the neutral equilibrium expectation (red).