Fig. 1
Fig. 1 iro7 is expressed in a restricted domain of the neural plate with a posterior border at the prospective r4/r5 boundary. (A-P) Embryos stained by double in situ hybridisation with the indicated probes (colour coded). Anterior is towards the top, stages are indicated at the bottom right-hand corner of each picture. (A,B) Whole mounts; (C-P) flat mounts. The arrowheads in I,J,M,N indicate krx20-expressing cells in prospective r5. The arrows in G,J,K indicate a mesodermal domain of iro7 expression (pm for paraxial mesoderm). (Q) Summary of expression data, anterior is towards the left. mb, midbrain; sc, spinal cord.