Please use this identifier to cite or link to this item: https://doi.org/10.1007/s11248-004-5790-z
Title: Demonstration of site-directed recombination in transgenic zebrafish using the Cre/loxP system
Authors: Pan, X. 
Wan, H.
Chia, W.
Tong, Y. 
Gong, Z. 
Keywords: Conditional transgenesis
Green fluorescent protein (GFP)
Transgene copy number
Transgenic fish
Issue Date: Apr-2005
Citation: Pan, X., Wan, H., Chia, W., Tong, Y., Gong, Z. (2005-04). Demonstration of site-directed recombination in transgenic zebrafish using the Cre/loxP system. Transgenic Research 14 (2) : 217-223. ScholarBank@NUS Repository. https://doi.org/10.1007/s11248-004-5790-z
Abstract: To test the Cre/loxP recombination system in zebrafish, a stable transgenic zebrafish line was developed by using a floxed (loxP flanked) gfp(green fluorescent protein) gene construct under the muscle-specific mylz2 promoter. Like our previous non-floxed gfp transgenic line under the same promoter, the new transgenic line expresses GFP reporter faithfully in fast skeletal muscles to the same intensity. To demonstrate the excision of floxed gfp transgene, in vitro synthesized Cre RNA was injected into embryos of floxed gfp transgenic zebrafish and we found a dramatic reduction of GFP expression. To confirm the excision, PCR was performed and a DNA fragment of correct size was amplified as predicted from the Cre/loxP mediated excision. Finally, we cloned the fragment and sequence information confirmed that the excision occurred at the precise site as predicted. Our experiments demonstrated that the Cre/loxP system can function efficiently and accurately in the zebrafish system. © Springer 2005.
Source Title: Transgenic Research
URI: http://scholarbank.nus.edu.sg/handle/10635/100414
ISSN: 09628819
DOI: 10.1007/s11248-004-5790-z
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