Principal component regression reveals coding fRNAs have significant influence on evolutionary divergence (genes with negative <i>mfe</i>).

1Numbers in bold correspond to predictors that contribute at least 20% to indicated component. 2Using information from regression analysis, underlined font means p-values<0.1; bold font means p-value<0.05. Sample size is 73 genes. Results are similar when considering divergence across a shorter timescale and additional functional variables (see Tables S6,S7).