Research Article

Evolution of the FGF Gene Family

Figure 1

FGF phylogeny in vertebrates. Neighbor-joining tree showing the classification into eight subfamilies of the different vertebrate FGF genes (i.e., FGF1/2, FGF3, FGF4/5/6, FGF7/10/22, FGF8/17/18/24, FGF9/16/20, FGF11/12/13/14, and FGF19/21/23). Sequences of Homo sapiens, Mus musculus, Bos taurus, Gallus gallus, Xenopus tropicalis, and Danio rerio were used to perform the phylogeny.
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