Figure 3
From: Differential strengths of selection on S-RNases from Physalis and Solanum(Solanaceae)
Bayesian estimate of the ratio of omega values (ω P = Physalis d N /d S ; ω S = Solanum d N d S ) for each codon position. The gray region is the 95% highest posterior density (HPD) and the solid line is the mean of the ratios. If the HPD crosses the value 1 (dashed line) then the ratios are not significantly different. HPD's above the line indicate a higher ω for Physalis than Solanum S-alleles.