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Spatial expression of SpCBFβ. Whole mount in situ hybridization of (A-G) Two day old gastrula stage embryos showing global expression, with enrichment in endoderm (e) and parts of the oral ectoderm (oe), and (H-K) four day old pluteus showing expression localized to midgut (m) and hindgut (h) endoderm, and some expression in the ciliated band of the anal arm buds (K, arrows).
