Imprecise excision of P{GSV1}foxoGS1664 generates an approximate 2kb in the 5' region of the foxo gene.
foxoΔ2 mutant embryos do not exhibit aberrant cell fate specification or axon guidance defects. foxoΔ2 mutant third instar larvae are indistinguishable from wild-type with respect to overall body size and muscle area and display no appreciable change in bouton number. However, the area of individual type 1b boutons is significantly increased. In addition, there is an increase in the number of closed, tightly bundled futsch-positive microtubule loops at neuromuscular junction 6/7.
