Figure 25

Phylogenetic analysis of IRF members in chordates by using neighbor-joining method within Mega4.0 program. Bootstrap values are indicated at nodes. Anole lizard IRF-5-seg, Dog IRF-7-seg and IRF-like gene segments in non-vertebrate deuterostomes were not included in the phylogenetic analysis due to the relatively short sequence lengths, and all IRF or -like genes shown in the tree are listed in Additional files 1 and 2.