Fig. 2

Distribution of ORF genes identified (middle) and size of coding region and unassigned region (right). Presence and absence of corresponding ORFs in Arcidae mitogenomes is shown by presence and absence of boxes, respectively. Blue boxes indicate ORFs completely annotated in mitogenomes. Light purple boxes indicate ORFs partially aligned in mitogenomes. Yellow bars indicate the length of coding region. Green bars indicate the length of unassigned region