Fig. 7. Loss of optic disc astrocyte precursor cells in
ThyCreShhn/c mice is not caused by a global defect in
proliferation. Ntn1 (A,D), Pax2 (B,E) and Pdgfra
(C,F) transcript expression detected by in situ hybridization in sections
through the optic disc of wild-type (A-C) and ThyCreShhn/c
(D-F) embryos, at E12 (A,D) and E17 (B,C,E,F). Compared with wild-type mice
(A-C), there was no Ntn1 (D), Pax2 (E) or Pdgfra
(F) expression in optic discs of ThyCreShhn/c-mutant mice.
Pax2 (G,H) and Pdgfra (I,J) expression is comparable between
E18 wild-type (G,I) and cyclin D1-/- (H,J) mice.