Fig. 6: Late genes fix beneficial mutations more often.
From: Molecular evolution and the decline of purifying selection with age
The fraction of nonsynonymous mutations that are beneficial (αm) is significantly greater in late-expressed than early-expressed genes in two of the four species. Significance was determined by Spearman rank correlations, and p-values in bold are significant at p < 0.05 (two-sided tests, not corrected for multiple tests). The lines are least squares regressions, and the gray regions show the approximate 95% confidence intervals for the regressions. See also Supplementary Fig. 6 and Supplementary Table 1.
