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J Embryol Exp Morphol. 1978 Dec;48:239-47.

Investigation of the potency of cells from the postimplantation mouse embryo by blastocyst injection: a preliminary report.

Abstract

Chimaeric conceptuses have been produced by injection of 5 1/2-and 6 1/2-day extra-embryonic ectoderm and 5 1/2-day embryonic and extra-embryonic endoderm into 3 1/2-day mouse blastocysts. Extra-embryonic ectoderm cells contributed only to the ectoplacental cone and/or trophoblast giant cell fractions, reflecting the probable trophectoderm origin of these cells. Proximal (visceral) endoderm cells overlying both the embryonic and extra-embryonic ectoderm contributed cells only to the endoderm of the visceral yolk sac, indicating that the definitive embryonic endoderm has not formed by 5 1/2 days p.c.

PMID:
370330
[Indexed for MEDLINE]
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