Fig. 2

The formation of a clade with only giant cetaceans (the sperm whale odontocete and the other large mysticetes) and another with smaller cetaceans (the mysticete minke whale [Balaenoptera acutorostrata] alongside the remaining odontocetes) in both Maximum likelihood tree generated by IQ − TREE and Bayesian tree generated by Mr Bayes v3.2.6 constructed from the promoter region of the NCAPG gene. Numbers under nodes represent bootstrap support (right) and Bayesian posterior probability (left)