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Figure 3. Later expression of the Xenopus orthologue of the hairy related gene (XHey-1) in comparison to Notch-1 and Serrate-1. XHey-1 expression persists in the somites (red arrows), head, eyes, and branchial arches of tadpole stage embryos shown from stages 32 to 35 (C,F,I). At this time, XHey-1 is also expressed in the heart (black arrows). Expression of Notch-1 and Serrate-1 is shown for comparison (A,B,D,E,G,H). Note that XHey-1 is expressed in a pattern largely overlapping that of Notch-1 and Serrate-1 in many tissues. However, unlike XHey-1, Notch-1, and Serrate-1 are expressed in the developing pronephros at this time (yellow arrows). In all panels, embryos are viewed laterally, with anterior to the right. |
