“…For insulin tree construction, sequences for 10 terminal taxa were included [R. catesbeiana, R. sylvatica, R. ridibunda (Conlon et al, 1998c); B. marinus (Conlon et al, 1998a); X. laevis (Shuldiner et al, 1989); Ceratophrys ornata (White et al, 1999); A. tridactylum (Conlon et al, 1996); S. intermedia (Conlon et al, 1997); and T. natans (Conlon et al, 1995). The amino acid sequences used are shown in Fig.…”