Additional file 4.

sox9b and barx1 expression following early and late Cya treatments. Lateral views of 60 hpf (A-C) or ventral views of 72 hpf (D-F) embryos that were untreated (A,D) or treated with Cya from 4-10 hpf (B,E) or 32-48 hpf (C,F) that are labeled with RNA probe for sox9b (A-C) or barx1 (D-F). (A-F) Cya treatments at these stages did not disrupt sox9b or barx1 expression patterns within mesenchymal condensation in PA.

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Schwend and Ahlgren BMC Developmental Biology 2009 9:59   doi:10.1186/1471-213X-9-59