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Figure Caption
Fig. 3 Posterior expansion of Nkx2.5 expression follows anterior notochord ablation. (A) Wild-type embryo at the 20-somite stage demonstrating normal pattern of Nkx2.5 expression (region of interest is magnified in the right panel). (B) Nkx2.5 expression in a 20-somite stage embryo whose anterior notochord had been ablated at the 8-somite stage, demonstrating posterior expansion of Nkx2.5 expression (white arrow; magnified view shown in right panel).
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Reprinted from Developmental Biology, 201, Goldstein, A.M. and Fishman, M.C., Notochord regulates cardiac lineage in zebrafish embryos, 247-252, Copyright (1998) with permission from Elsevier. Full text @ Dev. Biol.