Journal
NATURE PROTOCOLS
Volume 3, Issue 3, Pages 419-426Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2008.10
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Funding
- Medical Research Council [G0400559] Funding Source: Medline
- MRC [G0400559] Funding Source: UKRI
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The introduction of in ovo electroporation a decade ago has helped the chick embryo to become a powerful system to study gene regulation and function during development. Although this is a simple procedure for embryos of 2-d incubation, earlier stages (from laying to early neurulation, 0-1 d) present special challenges. Here we describe a robust and reproducible protocol for electroporation of expression vectors and morpholino oligonucleotides into the epiblast of embryos from soon after laying (stage XI) to stages 6-7 (early neurulation), with precise spatial and temporal control. Within 3 h, about 12 embryos can be electroporated and set up for culture by the New technique; the effects of morpholinos can be assessed immediately after electroporation, and robust overexpression from plasmid DNA is seen 2-3 h after electroporation. These techniques can be used for time-lapse imaging, gain- and loss-of-function experiments and studying gene regulatory elements in living embryos.
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