Journal
AQUACULTURE
Volume 317, Issue 1-4, Pages 245-250Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aquaculture.2011.04.019
Keywords
nanos; Primordial germ cell; Common carp; Goldfish; Germline chimera
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Funding
- Program for Promotion of Basic Research Activities for Innovative Biosciences (PROBRAIN) of Japan
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Primordial germ cells (PGCs) are the only cells in developing embryos with the potential to transmit genetic information to the next generation. We previously visualized the PGCs of several teleostean embryos by injecting RNA synthesized from constructs encoding green fluorescent protein (GFP) fused to the 3'UTR of the zebrafish (Danio rerio) nanos1 gene (nos1). However, this technique was not always suitable for visualizing PGCs in embryos from all teleost species. In this study, we compared the visualization of PGCs in common carp (Cyprinus carpio) embryos using two artificial constructs containing GFP fused to the 3'UTR of nanos from either common carp or zebrafish. Visualization was better using GFP fused to the 3'UTR of the nanos gene from common carp, compared with that from zebrafish. The visualized PGCs successfully migrated toward the gonadal ridge after transplantation into goldfish host embryos, suggesting that they maintained normal migratory motility. These techniques could be useful for the production of inter-specific germline chimeras using common carp donor PGCs. (C) 2011 Elsevier B.V. All rights reserved.
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