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Fig. 5. Dorsoventral polarity markers are normally expressed in Bmp7
null optic cups. Frontal vibratome sections from wild-type (A,C,E) and
Bmp7-null (B,D,F) optic cups were hybridised with probes specific for
Vax2 (A,B), Bmp4 (C,D) and
Raldh3 (E,F). The pattern of expression of both ventral
(Vax2) and dorsal (Bmp4) markers is unchanged in the mutant.
Expression levels for Raldh3 are reduced in the mutant, particularly
at the presumptive RF (arrows in E,F). Scale bar: 50 µm.