Development -- Broun et al. 132 (12): 2907 Figure IG9

(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. 9. Acquisition by the body column of the capacity to produce a signal that sets up the head activation gradient. (A). Diagram of the experiment. (B) Results.