The Drosophila BMPRII, wishful thinking, is required for eggshell patterning

Marmion et al., Developmental Biology, 2013

The Drosophila eggshell is an elaborate structure that is derived from a monolayer of follicular epithelium surrounding the developing oocyte within the female ovary. The bone morphogenetic protein (BMP) signaling pathway is essential for controlling the patterning and morphogenesis of the eggshell. We found that the type II BMP receptor is necessary for epithelial cells’ development.

http://www.sciencedirect.com/science/article/pii/S001216061200677X#