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Journal Article
Research Support, Non-U.S. Gov't
Efficient Production of Fluorescent Transgenic Rats using the piggyBac Transposon.
Scientific Reports 2016 September 15
Rats with fluorescent markers are of great value for studies that trace lineage-specific development, particularly those assessing the differentiation potential of embryonic stem cells (ESCs). The piggyBac (PB) transposon is widely used for the efficient introduction of genetic modifications into genomes, and has already been successfully used to produce transgenic mice and rats. Here, we generated transgenic rats carrying either the desRed fluorescent protein (RFP) gene or the enhanced green fluorescent protein (eGFP) gene by injecting pronuclei with PB plasmids. We showed that the transgenic rats expressed the RFP or eGFP gene in many organs and had the capability to transmit the marker gene to the next generation through germline integration. In addition, rat embryonic stem cells (ESCs) carrying an RFP reporter gene can be derived from the blastocysts of the transgenic rats. Moreover, the RFP gene can be detected in chimeras derived from RFP ESCs via blastocyst injection. This work suggests that PB-mediated transgenesis is a powerful tool to generate transgenic rats expressing fluorescent proteins with high efficiency, and this technique can be used to derive rat ESCs expressing a reporter protein.
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