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Fig. S1 Abnormal pharyngeal arch development in sym1 mutants. Wild-type (A, B) and sym1 mutant (C, D) embryos. (A, C) Dorsal views of sox9a expression in 24 hpf embryos. Black arrows indicate cranial arch streams of neural crest cells. (B, D) Lateral views of sox9a expression in 48 hpf wild-type (B) and sym1 mutant (D) embryos. White arrows indicate arch neural crest streams. At both 24 and 48 hpf, sox9a arch expression is reduced in sym1 mutants, particularly in posterior (branchial) arches.
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Reprinted from Developmental Biology, 292(1), Stewart, R.A., Arduini, B.L., Berghmans, S., George, R.E., Kanki, J.P., Henion, P.D., and Look, A.T., Zebrafish foxd3 is selectively required for neural crest specification, migration and survival, 174-188, Copyright (2006) with permission from Elsevier. Full text @ Dev. Biol.