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Fig. 4. Mash1 and Dll1 are upregulated in sympatho-adrenal
precursor cells of Insm1 mutant mice. Analysis of Mash1
expression by in situ hybridization and immunohistochemistry at E10.5
(A,B,E-H) and E12.5 (I,J), and of Dll1
expression at E10.5 (C,D) by in situ hybridization of
Insm1lacZ/+ and
Insm1lacZ/Insm1lacZ mice. In situ hybridization
using a probe specific for Mash1 (A,B,I,J) and Dll1 (C,D).
Immunohistochemistry using antibodies against (E,F) β-galactosidase (red)
and Mash1 (green); (G,H) Phox2a (red) and Mash1 (green). Scale bars: 100 µm
in A,I; 50 µm in E.