Fig. 2From: Mitochondrial genome of Cordyceps blackwelliae: organization, transcription, and evolutionary insights into CordycepsCodon usage (A) and amino acid frequency (B) for 16 free-standing PCGs in the C. blackwelliae mitogenome. The 16 PCGs include 14 typical PCGs and two intergenic ORFs. Please note that several codons are never used by these PCGs, and the UGA codon is used multiple times to code for tryptophanBack to article page