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The Tol2 transposon system can create chromosomal insertions in the zebrafish germ lineage very efficiently. We constructed a Tol2-based gene trap vector, T2KSAG, which contains a splice accepter, the GFP gene and the polyA signal. In the pilot screen for gene trapping using T2KSAG, we identified 38 fish lines expressing GFP in specific organs and tissues. In the SAGp53A line, GFP is expressed in...
The zebrafish is an ideal organism for small molecule studies. The ability to use the whole organism allows complex in vivo phenotypes to be assayed and combines animal testing with screening. Embryos are easily treatable by waterborne exposure. The small size and abundance of embryos make zebrafish suitable for screening in a high-throughput manner in 96- or 48-well plates. Zebrafish embryos have...
The combination of accessible embryology and forward genetic techniques has made zebrafish a powerful model system for the study of vertebrate development. One limitation of genetic analysis is that the study of gene function is usually limited to the first developmental event affected by a gene. In vivo electroporation has recently matured as a method for studying gene function at different developmental...
Animal models provide an in vivo system to study gene function by transgenic and knockout approaches. Targeted knockout approaches have been very successful in mice, but are currently not feasible in zebrafish due to the inability to grow embryonic stem cells. As an alternative, a reverse genetic approach that utilizes screening by resequencing and/or TILLING (Targeting Induced Local Lesions IN Genomes)...
Recent reports make use of the zebrafish to study complex behavior such as addiction, anxiety, or learning and memory. We have established reliable tests and appropriate controls to measure these behavioral parameters in the zebrafish adult. Our assays are robust enough to permit the detection of dominant mutations affecting drug-induced reward, and therefore can be used in forward genetic screens...
The morphological effects of mutation and disease are often critical to our understanding of normal and abnormal function. The power and popularity of zebrafish as a forward and reverse genetic vertebrate model system, combined with its small size, have made it an ideal model in which to study the genetics of histologically scorable phenotypes. The presence of multiple tissue types in this organism’s...
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