View source for File:Hedgehog signalling on plane polarity of denticles in Drosophila.png

Image of the ''Drosophila'' embryo denticles and their response to various signalling molecules include hedgehog with regards to planar polarity. As shown in the images hedgehog acts to repel denticle position in the opposite direction f where the signalling was introduced.
== Copyright ==
© 2006 Colosimo and Tolwinski. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

== Reference ==
<pubmed>17183721</pubmed>