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Fig. 4. Ash1a and Ngn1 function downstream of Flh and upstream of neuroD.
Dorsal views of brains with anterior at the top, showing expression of
flh and neuroD in wild-type (WT), ash1a, ngn1 and
ash1a/ngn1-double morphant embryos. Probe and stage are indicated on
the left, `genotype' above. Expression of flh was unaffected
following the impairment of either or both Ash1a and Ngn1 function (B-D). By
contrast, expression of neuroD was affected by the reduction of Ash1a
(F) or of both Ash1a and Ngn1 (H). Scale bar: 10 µm.