No abnormalities are seen when homozygous clones occupy the wing or distal leg segments. Clones on the proximal leg segments often severely affect the shape of the femur and tibia, which become shorter and broader than in wild type. In these cases the segments are approximately 1/3 shorter and 1/3 broader than normal, but leg segmentation is normal. The number of leg trichomes is normal. More than half (10/18) of somatic clones induced on the femur or tibia are short and broad. 8 of these clones occupied a single segment, while two were localised straddling the femur and tibia junction (all control clones occupy more than one leg segment).
The filzkorper are not elongated and the head skeleton is defective.
grn7J is partially rescued by Scer\GAL4salm-459.2/grnUAS.cBa