No molecular lesion detectable by Southern blot analysis in the -60kb to -40kb region (coordinates of FBrf0040194).
Hemizygous viable. Hemizygotes and UbxMX17/UbxMX19 transheterozygotes show a slight but clear transformation of haltere to wing. The transformation appears stronger in trans to Df(3R)P9. Only the distal part of the appendage is affected. There is a partial transformation of the first abdominal segment to thorax as indicated by the reduced number of bristles. There is no detectable embryonic phenotype.
Induced in TM1.