New Insights on the Evolutionary History of Aphids and Their Primary Endosymbiont Buchnera aphidicola
Figure 1
Global average values (and confidence interval of 95%) of (a) synonymous () and (b) nonsynonymous () nucleotide substitutions per site per million years. The divergence times among strains are 50 (BAp-BSg), 107 (BAp-BBp and BSg-BBp), 111 (BAp-BCc and BSg-BCc), and 112 (BBp-BCc) MY, respectively. The numbers of shared protein-coding genes are 348 (BAp-BSg), 347 (BAp-BBp), 354 (BAp-BCc), 343 (BSg-BBp), 350 (BSg-BCc), and 350 (BBp-BCc), respectively.
