Figure 2From: Genome sequencing and comparative genomics of honey bee microsporidia, Nosema apis reveal novel insights into host-parasite interactionsCodon usage frequencies of N. apis (Blue) and N. ceranae (Green) gene groups. Each bar represents the proportion of all codons encoding a given amino-acid that are the specified codon. The values are one by definition for the single-codon amino acids, tryptophan (Trp) and methionine (Met). Both N. apis and N. ceranae share similar optimal codons.Back to article page