In individuals expressing spagVDRC.cUa under the control of Scer\GAL4VP16.bam, testes lack motile sperm and, although sperm bundles are largely normal, axonemes show loss of dynein arms, occasional microtubule occlusions and axonemal fragmentation.
In individuals expressing spagVDRC.cUa under the control of Scer\GAL4sca.PU, Ch neurons show a grossly normal cilium morphology despite of the absence of dynein arms.