Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12864-020-06942-y/MediaObjects/12864_2020_6942_Fig2_HTML.png)
Maximum likelihood based phylogenetic tree of the AQP families in vertebrates. The AQP families were distinct separated into four clades (marked with different colors), representing the four subfamilies respectively. The protein sequences were collected from the following species: Latimeria chalumnae (Lch), Rhinatrema bivittatum (Rbi), Xenopus laevis (Xla), Xenopus tropicalis (Xtr), Gopherus evgoodei (Gev), Gallus gallus (Gga), Ornithorhynchus anatinus (Oan), Homo sapiens (Hsa)