Figure 3From: Codon usage in vertebrates is associated with a low risk of acquiring nonsense mutationsGC content of CDS relative to F. The correlations are shown between the GC content of all CDS in 40 species and the stop risk factor F. The species are grouped like in Figure 2: protozoa (△), plants (□), fungi (○), invertebrates (▲), and vertebrates (●). The CDS in a species with an unbiased codon usage has an F = 1.0 (dotted line).Back to article page