Figure 2From: Purifying selection in mitochondria, free-living and obligate intracellular proteobacteriaSignificance of the difference of the purifying selection (1- K n /K s ) in the analyzed organisms from model 2c. For ovals within each column, P < 0.05 if ovals are separated; 0.05<P≤0.08 if ovals touch; P > 0.08 if ovals overlap. The more pronounced trend with non-overlapping standard errors is observed in results of models 2a and 2b (see Table 1).Back to article page