A 1.6kb fragment from the iab-8 region downstream of Abd-B (the fragment is also within the transvection mediating region) is fused upstream of lacZ.
A minimal 1.6kb iab8 enhancer fragment drives lacZ expression.
Construct: A 1.6kb fragment from the iab-8 region downstream of Abd-B (the fragment is also within the transvection mediating region) is fused upstream of w.