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Fig. 4 | Zoological Letters

Fig. 4

From: Amphioxus mouth after dorso-ventral inversion

Fig. 4

Expression patterns of antagonistic genes to Wnt and pax2/5/8 related to dissolution of basal laminae. ac Left lateral views of knife-shaped larvae. a’–c’ Dorsal views. Most genes are expressed in the region where internal lumens open into the exterior. Arrowheads denote gene expression regions. csg, club-shaped gland; es, endostyle; omv, oral mesovesicle; 1 pg, future first gill; ph, pharynx; pp, preoral pit. Scale bar, 100 μm for all

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