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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Wiley Interdiscip Rev Dev Biol. 2014 Sep 3;3(6):445–463. doi: 10.1002/wdev.151

Figure 5. A/P organizing centers of the wing disc columnar and peripodial epithelia.

Figure 5

Frontal (top) and transverse (bottom) depictions of a wing disc and the distribution of Dpp from the organizing centers of each layer. The disc is a flattened sac and the Dpp organizing centers are not juxtaposed.