“…Another approach, a screening of the genome by means of the subtraction hybridization method made it possible to isolate two novel mouse paternally expressed genes: Pegl (paternally expressed gene 1), which was mapped to chromosome 6 (Kaneko-Ishino et aL, 1995), and the other, Peg3, mapped to the proximal region of chromosome 7 (Kuroiwa et aL, 1996). Until now, 4 mouse maternally expressing genes, lgf2r, H19, Mash2 and p57 ~w2 (Hatada and Mukai, 1995), and 10 paternally expressing genes, Mas,Igf2,Ins2,Snrpn,Zuf127,Peg3,Pegl,lnsl,CDC25Mm and SP2 have been identified (Table 1).…”