Figure 2.
Scatter plots of GC3, G + C content of coding sequences, G + C content of intronic sequences versus the frequency of optimal codons (Fop). Total gene included is 8631. Fop was estimated by codonW 1.4.2 with customized optimal codon table (see Table 1). (a) Fop versus GC3; (b) Fop versus G + C content of CDSs and (c) Fop versus G + C content of intronic sequences.