Ancestral gene order reconstructions for Helicoidea. Columns (A–E) correspond to labeled nodes in Figure 2. IUPAC single letter codes are used to identify tRNA genes. Rearrangements in red and blue are unique to Helicidae. The convergent rearrangement seen in Bradybaenidae, Camaena, and Praticolella is shown in yellow. The green rearrangement is unique to Aegista.

 
 
  Part of: Minton RL, Martinez Cruz MA, Farman ML, Perez KE (2016) Two complete mitochondrial genomes from Praticolella mexicana Perez, 2011 (Polygyridae) and gene order evolution in Helicoidea (Mollusca, Gastropoda). ZooKeys 626: 137-154. https://doi.org/10.3897/zookeys.626.9633