Mismatch distribution of substitution differences between pairs of individuals from Brittany for 16S rDNA and COI genes. The observed frequency is given as a dotted line. The expected distribution under a growth-decline model determined using the DNASP v3.5 program  is represented by a continuous line.
Vialatte et al. BMC Evolutionary Biology 2008 8:339 doi:10.1186/1471-2148-8-339