Comparative diagrams of the mitochondrial genomes of W. bancrofti and C. quiscali . Protein-coding genes are shown in red with arrowheads indicating directionality. rRNA and tRNA genes are shown in blue and green, respectively, and the AT-rich region is shown in purple. The diagram of the W. bancrofti mitochondrial genome is representative of most filarial mitochondria, as synteny is preserved in all species except C. quiscali. The 5 tRNA genes rearranged in C. quiscali are highlighted in orange.