Figure 2From: High codon adaptation in citrus tristeza virus to its citrus hostComparative analysis of nucleotide composition and codon abundance of CTV and C. sinensis . (A) Frequencies of 4 nucleotides at the three positions within a codon for the full CTV coding region (up panel) and coding region of C. sinensis (lower panel). (B) Correlation of the codon abundances between CTV and C. sinensis.Back to article page