FlyBase curator comment: this entry represents a transgenic construct where the particular construct used cannot be determined.
Ultrastructure analysis of adult Ch neurons and of sperm bundles expressing Wdr92dsRNA.UAS.cUa under the control of Scer\GAL4sca.PU and Scer\GAL4VP16.bam, respectively, shows a complete absence of outer and inner dynein arms, as compared to controls.