16S-rRNA and 12S-rRNA secondary structures of the mitochondrial genome of D. pteronyssinus. The numbering of the stem-loops is after de Rijk et al.  for 16S-rRNA and after van de Peer et al.  for 12S-rRNA. Blue coloured nucleotides show 100% identity when aligned to 12S-rRNA and 16S-rRNA genes from other Acariformes (as listed in Table 1). Inferred Watson-Crick bonds are illustrated by lines, whereas GU bonds are illustrated by dots.