In vivo evaluation of ovine sperm/embryo ability in mediating transgenic lamb

Abstract

Here, we evaluated the ovine embryo ability in DNA uptake as an alternate pathway for sperm-mediated transgenesis. EGFP carrying plasmid was intra-uterus injected through laparoscopy either five days following natural insemination or mixed with sperm cells at the time of fertilization. Excluding trivial false-positive PCR results, following stringent negative control confirmation, PCR analysis of various tissues from 7 generated lambs did not reveal the transgene transfer. Therefore, non-viral vector incubation with sperm or embryo was inefficient for ewe transgenesis.

Keywords

• Transgenesis
• Sperm
• Embryo
• EMGT
• SMGT