A heat shock promoter drives expression of a kinase-dead, dominant negative form of Egfr.
Expression of EgfrDN.hs using heat shocks at very late third instar to pupal stages results in flies that have ectopic wing veins, often in close proximity to normal veins. Expression of EgfrDN.hs using heat shocks during early-to-mid second larval instar stages results in flies with substantial wing vein losses.