Fig. 4

V. harmandiana chloroplast genome features and content. A Genome structure and annotation. Genes are color coded by functional categories. Genes that have introns are marked with asterisks (*). There are 89 protein-coding genes, 37 tRNA genes and 8 rRNA genes. GC content is indicated by the grey bars with the circle inside marking the 50% threshold. Thick lines indicate IR regions (IRa and IRb). B Codon usage and C amino acid usage. Circos plots illustrate the patterns of codon and amino acid usages