The reduced wing size and vein L5 truncation seen in flies carrying homozygous gbb^D20 clones in the anterior compartment of the wing are suppressed by scw^gbb.PF; the wing is nearly normal in size and vein L5 reaches the wing margin.

The loss of the posterior crossvein and loss of the distal tip of vein L5 which are seen in flies carrying homozygous gbb^D20 clones in the posterior compartment of the wing are both partially suppressed by a single copy of scw^gbb.PF, resulting in a small fragment of posterior crossvein which is detached from both the L4 and L5 veins and an almost complete L5 vein.

A single copy of scw^gbb.PF partially rescues the lethality of gbb⁴/gbb^D20 animals (34% of the expected number of adults are recovered) and the loss of posterior crossvein and truncation of L5 that are seen in gbb⁴/gbb^D20 adult escapers are partially restored. Two copies of scw^gbb.PF rescue the posterior crossvein and vein L5 phenotypes to nearly wild type.

scw^gbb.PF rescues the lethality of gbb^D20/Df(2R)bw-S46 animals; lethality is rescued from the larval/pupal stage to the pharate adult, with rare viable escapers.

The loss of posterior crossvein which is seen in Dp(2;2)DTD48, gbb⁴/gbb⁴ flies is rescued by a single copy of scw^gbb.PF.

The ability of scw^gbb.PF to rescue the loss of posterior crossvein which is seen in Dp(2;2)DTD48, gbb⁴/gbb⁴ flies is completely suppressed in a cv⁴³ background.

scw^gbb.PF cannot rescue the wing vein defects of gbb¹/gbb⁴ flies in a sax¹/sax² background.