Figure 2.

Codon frequency The frequency of each degenerate codon is indicated in a species-specific color (At Arabidopsis thaliana, Ce Caenorhabditis elegans, Dm Drosophila melanogaster, Os Oryza sativa). Codons are grouped by their parent amino acid.

Korf BMC Bioinformatics 2004 5:59   doi:10.1186/1471-2105-5-59
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