Figure 3

Phylogenetic tree of Hexapoda using crustaceans as outgroups. (A) With collembolans. (B) Without collembolans. Phylogenetic analyses were performed with RAxML and MrBayes. The bootstrap value and posterior probability are shown at each node. The topologies of Ectognatha are omitted in this tree. For the details of these analyses and the original trees, see Additional files 8, 9, 10 and 11.