Germ cell migration in toad (Bufo bufo): effect of ventral grafting of embryonic dorsal regions

Bufo bufo embryos were used at the tail-bud stage for the grafting of two different dorsal regions (cephalic and caudal tracts) into the ventral side of the embryo (cf. Fig. 1). Germ cell localization was studied at the beginning of larval life. The results seem to confirm the original finding of Gi...

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