“…In mammals, nine Pax genes have been identified to date, of which four are known to be expressed during somite development. These include Pax1 Wallin et al, 1994), Pax3 (Goulding et al, 1993;Vogan et al, 1993;Williams and Ordahl, 1994), Pax7 (Jostes et al, 1990), and Pax9 (Neubuser et al, 1995;Wallin et al, 1993). Pax3 is expressed throughout the unsegmented presomitic mesoderm.…”