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Fig. 4. Ngf, Lanr, Gdnf, Ncam and Net3 expression is not altered
in the Sema3a-/- tooth. Bright- and dark-field images of
frontal sections of the E14-late bud/early cap stage wild-type
(A1-A2,C1-C2,E1-E2,G1-G2,I1-I2) and Sema3a mutant
(B1-B2,D1-D2,F1-F2,H1-H2,J1-J2) upper and lower first molar tooth germs.
Abbreviations: de, dental epithelium; dp, dental papilla. Scale bar: 100
µm.