Fig. 3
From: The early events underlying genome evolution in a localized Sinorhizobium meliloti population

Mismatch distribution analysis for concatenated genes carrying SNPs. Graphs of the mismatch distribution are shown for each replicon and for the two halves of the chromosome. The x-axis shows the observed distribution of pairwise nucleotide differences, with frequency plotted on the y-axis. The values of the moment estimator Tau (τ), and the Raggedness index r and R 2 statistics are shown