Figure 2

Mitochondrial gene rearrangements between different mollusk classes. Genes encoded by the opposite strand are underlined. Inversions (indicated by the circular arrow) and transpositions of protein-coding, tRNA and rRNA genes are depicted among the different taxa. Genes located in apomorphic arrangements are colored. The consensus protein-coding gene order of mollusks, and those of selected spiralian mt genomes are depicted. Genes have standard abbreviations and are not scaled to real length. S1, S2, L1, and L2 designate genes for those tRNAs recognizing the codons AGN, UCN, CUN, and UUR, respectively.