Figure 3
Inferred intermediate steps between the S. plagiusa mitogenome (typical ancestral gene order) and the S. orientalis mitogenome. Protein-coding genes and CRs are indicated with boxes, and tRNA genes are indicated with columns. Genes labeled above the diagram are encoded by the H-strand and those below the diagram by the L-strand. (A) Gene order in the S. plagiusa mitogenome; (B) the genes between CR and N were duplicated and then randomly lost; (C) gene order in the S. orientalis mitogenome.