(A-D) Expression of deltaA, deltaB, deltaC and deltaD in whole mounts at 24 hpf. Note expression of deltaC and deltaD in the presomitic mesoderm (psm) of the tail bud and in recently formed somites. deltaC is now also strongly expressed in the retina (r), while deltaA, deltaB, and deltaD are expressed in scattered subsets of cells in the brain and spinal cord (sc). (E,F) Expression of deltaC and deltaD in recently formed somites at the 10-somite stage (14 hpf). Trunk region of flat-mounted embryo, anterior to the left. Note that deltaC is expressed in the anterior part of each somite, deltaD in the posterior part. Scale bars: 200 μm (A-D), 50 μm (E,F).
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