Figure 4

Phylogenetic maximum likelihood trees of the FNG and FSCN gene families. The fringe homolog (FNG) and fascin homolog 1 and 2 (FSCN) gene families are neighboring gene families of the SSTR2, -3 and -5 chromosomal regions. Phylogenetic methods, monophyletic clusters and leaf names as in Figure 2. All neighboring gene family trees for the SSTR2, -3 and -5-bearing regions, including NJ analyses and all branch support values, are shown in Figure S21-S50 (see Additional file 6).