Journal
JOURNAL OF APPLIED ICHTHYOLOGY
Volume 26, Issue 2, Pages 183-186Publisher
WILEY
DOI: 10.1111/j.1439-0426.2010.01401.x
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P>Transgenic zebrafish provide amazing new tools for following and manipulating cells that form the skeleton. Transgenes that label distinct populations of embryonic cells, such as neural crest that forms most of the skull vault as well as the jaws and gills can be used to determine the embryonic origins of cartilages and bones. This provides a powerful model system for studies of the developmental basis for human birth defects and in a comparative context provides new insights into the developmental changes underlying morphological evolution. Targeting transgenes to nuclear or membrane compartments allows detailed tracking of cell shapes and movements. Here we review how such transgenic markers combined with mutants or tissue grafts to generate mosaic zebrafish embryos have already provided many new insights into skeletal development and disease. In the long run, transgenics designed to perturb gene expression hold great promise for studies of gene function.
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