EcollacZtkv-k16713 expression is stronger in the upper part of the air sac primordium than the lower part.
EcollacZtkv-k16713 is expressed along the anterior and posterior sides of the wing pouch; expression is excluded from a wide vertical band perpendicular to the D/V boundary in the middle of the wing pouch. EcollacZtkv-k16713 is expressed throughout the presumptive capitellum (haltere pouch).
Larval expression complementary to that of bi in the wing disc.