macrochaeta (with HattP)
Adult HΔM2 homozygous mutants do not display significant bristle defects with the number of aberrant bristles within the range observed in wild-type, no abnormalities in wing venation are seen either and the wing size is comparable to controls. However, when combined with the HattP allele, the transheterozygotes show very severe bristle defects (around 30 affected).
HΔM2/H[+] is a non-suppressor of visible | adult stage phenotype of DeltaB2
The wing notching phenotype of Df(1)N-54l9/+ heterozygotes is largely suppressed if they are also heterozygous for HΔM2.
The vein thickening and vein deltas characteristic for HattP/+ adults is not suppressible by combination with a single copy of HΔM2.