Fig. 6. Multiple Tcf/Lefs are required for zic gene expression. Embryos
injected with the MOs shown at the lower left of each panel and stained for
zic2aD5:gfp (A,C,E,G,I) or
zic2a (B,D,F,H,J) at 18 hpf. (C-D)
Strongly affected tcf3 morphants had anterior trunctions and reduced
zic2aD5:gfp (asterisks) and zic2a domains. (E-J)
lef1 morphants showed a strong reduction in zic2aD5:gfp (E)
and a mild reduction in zic2a (F). tcf7 morphants showed a
mild reduction in zic2aD5:gfp (G), but normal zic2a (H).
lef1+tcf7 morphants showed a strong reduction in
zic2aD5:gfp (I) and mild reduction in zic2a (J). All views
are lateral, anterior to the left. Arrowheads indicate the midbrain.