Occurrence of haploid cells bearing Y chromosomes in bovine embryos fertilized in vitro.
Haploid cells bearing Y chromosomes were observed in bovine embryos derived from in vitro fertilization of in vitro-matured follicular oocytes in Japanese Black cattle. The androgenic embryos described in this article might be caused by abnormality in the formation of the female pronucleus.
NODAI Research Institute, Tokyo University of Agriculture, Japan.
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Iwasaki
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Hamano
D000818:Animals; D002417:Cattle / Q000196:embryology / Q000235:genetics*; D046508:Culture Techniques; D005307:Fertilization in Vitro; D006238:Haploidy; D007621:Karyotyping / Q000662:veterinary; D014998:Y Chromosome