Fig. 9
Summary of trait correlations with ∆LFE in the mid-CDS region for different taxonomic groups. Many of these correlations are discussed in the previous sections. For each taxonomic group and trait combination, correlations are measured using R2 with GLS (phylogenetically corrected, green bars) and OLS (uncorrected linear relationship, red bars). Significant correlations are marked with “∗” (p value < 0.05) or “∗∗” (p value< 0.001). Correlations with genomic-GC% and genomic-ENc′ are robust in prokaryotes, whereas other traits do not have consistent linear relationships. All correlations are for the region 100–300 nt after CDS start. (a) No linear dependence, but a significant relationship does exist (see Fig. 6). (b) Linear dependence appears in GLS but not in OLS. Small sample size exists in some taxons. (c) No significant linear relationship found over the entire range of values, but hyperthermophiles have significantly lower ∆LFE (see the “Weak ∆LFE in hyperthermophiles” section)