Figure 5From: Evidence for GC-biased gene conversion as a driver of between-lineage differences in avian base compositionNegative associations between coding GC and body mass are stronger for high GC3-variance orthologs. Both high- and low-variance orthologs exhibit significant negative correlations between GC at multiple classes of coding site and body mass, although the pattern is markedly weaker in the low-variance set.Back to article page