Total number of SNPs, nucleotide diversity (mean θ_π) and mean <i>D_T</i> for all data and for gene regions separated by species and replicon.

<p>Data are only from genes for which >90% of the sites have unambiguous base calls from ≥80% of the strains and were not identified as recently transferred between <i>S. meliloti</i> and <i>S. medicae</i>.