Y-irradiation of host embryos ablates endogenous
PGCs. Top: In situ hybridisation with a riboprobe to cPouV of day 5
gonads from a control and 7.5 Gy irradiated embryo.Bottom: Germ
cell numbers in control embryos and embryos irradiated for various
times. Error bars, S.E.M. **, p,0.01.
doi:10.1371/journal.pone.0015518.g006