Fig. 4.

The ability of anterior neural tissue to induce foxe3 expression is enhanced by ldb1. A: Schematic diagram of recombinant procedure; Stage 11-11.5 lineage-labeled animal cap ectoderm combined with control anterior neural plates or anterior neural plates from embryos injected with Δldb1 RNA into the animal pole at the 1-cell stage, cultured to Stage 23, processed for in situ hybridization, and sectioned for analysis. B-C: Expression of foxe3 (B) and lineage labeling (C) of responding ectoderm in recombinant with control neural plate (39% expressing foxe3). D-E: Expression of foxe3 (D) and lineage labeling (E) of responding ectoderm in recombinant with Δldb1-injected neural plate (64% expressing foxe3).