FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Show no interaction with the dominant wing basal cell 1 swirl phenotype of VangTbs42.
fry1 fyunspecified double mutant clones in the wing have a much stronger phenotype than either single mutant.