Controlling growth of the wing: vestigial integrates signals from the compartment boundaries.

In the past few years it has become apparent that the anterior/posterior (A/P) and dorsal/ventral (D/V) compartment boundaries serve as the source of long-range signals that organize the A/P and D/V axes of the Drosophila wing. Recent work suggests that the vestigial gene may function as a nodal point through which the growth-controlling activity of these two patterning systems is integrated.