Fig. 9From: Analysis of transcriptome data reveals multifactor constraint on codon usage in Taenia multiceps A-D Comparisons in the ratio of codon usage frequency (1/1000) of T. multiceps relative to E. coli, yeast, H. sapiens and T. pisiformis, respectively. Ratios higher than 2 or lower than 0.5 indicate differences in the codon usage preference between the two speciesBack to article page