Figure 3

Recombination and protein evolutionary rate. The relationship (r = partial correlation coefficient; see materials and methods) between recombination rate and dN for five gene expression intervals: the lower gene expression quartile (2.25 to 3.15 log mRNA abundance), the lower 50% expression (3.31 to 4.54 log mRNA abundance), and the upper gene expression quartile (3.53 to 4.54 log mRNA abundance). * P < 0.05; ** P < 0.01; *** P < 0.001 (after Bonferroni correction for five comparisons).