FIG. 1.
A phylogeny for the Wnt11 family. Clade A, a gene clade in ray-finned fish. Clade B, a gene clade of lobe-finned fish that is the sister of Clade A. Clade C, a gene clade found in many ray-finned vertebrates, but not percomorph fish, and in many lobe-finned fish, including many tetrapods, but not mammals.