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Figure Caption
Fig. 5 Whole mount RNA in situ hybridization with flk on 30 somite stage embryos (24 hpf) showing (A) a view of the head, (B) a lateral view of the trunk, and (C) a sagittal section of the posterior trunk and tail. (A) Clearly visible are the patent first aortic arch (aa) and left dorsal aorta (da). In contrast, the anterior cardinal vein (acv) does not yet possess a lumen. (B, C) In the trunk, intersomitic vessels (arrows) can be seen sprouting from the dorsal aorta (a). Dorsal is up and anterior is to the left. Bars, 100 μm (A), 50 μm (B, C).
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Reprinted from Developmental Biology, 183(1), Fouquet, B., Weinstein, B.M., Serluca, F.C., and Fishman, M.C., Vessel patterning in the embryo of the zebrafish: guidance by notochord, 37-48, Copyright (1997) with permission from Elsevier. Full text @ Dev. Biol.