The adjacent lncRNA:CR43631, lncRNA:CR43632, lncRNA:CR43633, lncRNA:CR43634 and lncRNA:CR43847 lncRNA genes have been knocked out and replaced with an attP-FRT-Disc\RFP3xP3.cUa-FRT reporter cassette.
Df(3R)CR43631-CR43847 homozygote males show severely reduced fertility compared to wild-type controls and display defects in spermatid morphogenesis (mutant testes contain sperm cells that are scattered or curled).