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Introduction of genes into preimplantation mouse embryos by use of a defective recombinant retrovirus.
Author(s) -
John L.R. Rubenstein,
Jean–François Nicolas,
F Jacob
Publication year - 1986
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.83.2.366
Subject(s) - provirus , retrovirus , biology , embryo , virology , recombinant dna , in vitro , virus , genome , transgene , gene , cell culture , genetics , recombinant virus , microbiology and biotechnology
Two-cell and four-cell preimplantation mouse embryos were cocultured in vitro with fibroblasts producing the recombinant retrovirus M-MuLV-neo. No wildtype helper virus was detected in these cultures. Of the embryos that survived the in vitro cultivation and the reimplantation into foster mothers, 2 of 15 that were tested contained the proviral genome. The provirus integrated as a single copy at a unique site. We estimate that approximately equal to 20% of the cells in each of the two transgenic fetuses contained the provirus.

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