Reduced morphogen availability causes a reduction in haltere size relative to the wing. (science.sciencemag.org)
My first insight came from removing Ubx function from random clusters of haltere cells (2). (science.sciencemag.org)
This means that Ubx does not control haltere size cell - autonomously by, for example, acting directly on cell cycle or apoptotic checkpoints. (science.sciencemag.org)