Patterns of sequence evolution in universally conserved genes. Concordance between synonymous and nonsynonymous site divergence in 37 genes and other measures of sequence divergence. Left panel: Ka and Ks vs. 16S rRNA divergence. Center panel: Ka and Ks vs. genome-wide median nonsynonymous divergence. Right panel: Ka and Ks vs. genome-wide median synonymous divergence.
Kuo and Ochman Biology Direct 2009 4:35 doi:10.1186/1745-6150-4-35