Fig. 8

Conservation profile of the complete translated cox1 gene for sponges. X-axis indicates the amino acid position along the alignment. Y-axis assigns the number of amino-acid substitutions over a range of 11 aligned positions throughout the alignment. Different intron insertion positions of group I introns (387, 714, 723 and 870) and group II introns (966 and 1141) are plotted on the profile line and color-coded with respect to Fig. 2. Additionally, the 5′ position of commonly used sponge barcoding markers is indicated as light blue rhombuses. A detailed list of primers is provided in Additional file 4