Fig. 5

Evolution of gene orders [protein-coding genes (PCGs) and rRNAs] in mitogenomes explained using CREx. Rearrangement operations occurred from an inferred ancestral arthropod gene order to oribatid mites followed by astigmatid mites. Type I indicates the mt PCG and rRNA gene orders in six oribatid mites. Type II indicates the mt PCG and rRNA gene order in Steganacarus magnus. Type III indicates the mt PCG and rRNA gene orders in astigmatid mites. Underlined genes are present on the (−)-strand. The genes are presented in their original order; intergenic distances are not included, and the gene sizes are not true to scale. The rrnL and rrnS genes are color-coded (black gray in color)