Phylogenetic relationships of the arthropods (a) Minimum evolution tree of the nine concatenated nuclear genes. (b) Minimum evolution tree of the 24 concatenated nuclear and mitochondrial genes. Both trees were obtained using gamma corrected Kimura 2-parameter (transversion) distances. The same (or similar) tree topologies were obtained using other methods (Table 1).
Pisani et al. BMC Biology 2004 2:1 doi:10.1186/1741-7007-2-1