A Brightfield image of a 26 hpf zebrafish.
B Cartoon cross section of the embryonic trunk marking somites in light blue, sclerotome in purple, venous endothelium in yellow, and aortic endothelium in orange.
C–H WISH of uninjected and notch3 morphants at 26 hpf for the endothelial marker kdrl (C), dorsal aorta markers efnb2a (D) and dlc (E), the somite marker myod (F), and sclerotome markers foxc1b (G) and twist1b (H). Magnified panels are shown for somitic and sclerotomal markers in lower left corner. Arrowheads indicate tissue-specific gene expression.