Personal communication from: Ruth Griffin-Shea, CEA-Grenoble To: Bloomington Drosophila Stock Center Subject: Df(3R)rn20 Dated: 12 August 1998 Background: The current FlyBase record for Df(3R)rn20 indicates that one breakpoint may be within the rn gene, creating the allele rn20. Information communicated: Df(3R)rn20 removes the whole rotund region and nearby genes.