The rhoWk/rhoStg extra wing vein phenotype is slightly enhanced by emc1/emc11 and slightly suppressed by emcD/emcD. Clones in the wing intervein regions that are doubly mutant for rhoWk and emc1 largely differentiate as veins.
rhoWk; Shs.PK flies heatshocked between 6 and 9 hours after puparium formation (APF) show an extra vein phenotype much stronger than either rhoWk or Shs.PK alone. Entire intervein sectors are converted into veins. Flies heatshocked between 9 and 12 hours APF show a moderate extra vein phenotype, consisting of ectopic crossveins and additional longitudinal veins. Between 12 and 24 hours APF heatshocking induced diffuse extra vein material between wing veins L1 and L2, and between L4 and L5.