Fig. 3

Maximum likelihood trees based on all eight datasets (A–H). Branch lengths are scaled by setting the length of the outgroup branch to 1.5 on each tree. Numbers on top of the outgroup branches represent the original length of the branches. Every genus is marked with a different color, which is identical to the color coding on Figs. 4 and 5. Mimachlamys varia is marked with a black diamond shape, the gray line connects the corresponding internal node with the SH-like approximate likelihood ratio test (SH-aLRT) value on the left and ultrafast bootstrap support on the right. Dataset descriptions: A all PCG and rRNA genes treated with Gblocks; B all PCG amino acid sequences and rRNA genes treated with Gblocks; C all PCGs; D all PCGs treated with Gblocks; E all PCG amino acid sequences; F all PCG amino acid sequences treated with Gblocks; G rRNA genes; H rRNA genes treated with Gblocks