(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 4. Context-dependent relationships between signaling pathways and the retinal
determination gene network (RDGN). Positive interactions are shown in green,
negative interactions in red. Arrows represent activation or induction;
blunt-end lines represent transcriptional and/or post-translational
repression. DAC, DACHSHUND; DPP, Decapentaplegic; EGFR, Epidermal growth
factor receptor; EYA, Eyes absent; HH, Hedgehog; SHH, Sonic hedgehog; SO, Sine
oculis; WG, Wingless.