Additional file 4: of A gene regulatory network underlying the formation of pre-placodal ectoderm in Xenopus laevis

Figure S3. Role of early ectodermal TFs for Eya1 expression in the PPE. Expression of PPE marker Eya1 in dorsal views of neural plate stage Xenopus embryos after injection of mRNAs for hormone-inducible early ectodermal TF genes and dexamethasone activation from stage 11–12. Anterior is to the bottom. Control side is shown on the left and injected side on the right (as indicated by blue LacZ staining). Reductions (arrows) and increased or ectopic expression domains (asterisks) in the neural (green) and non-neural ectoderm (orange) compared with the control side (arrowheads) are indicated. See Additional file 1: Tables S4 and S5 for numbers. (PDF 261 kb