Subject: Df(3R)96B (stock 4531) comments: The distal breakpoint of Df(3R)96B has been wrongly mapped: \-Analysis of polytene chromosome squashes indicates a chromosomal deletion between 96A21 and 96B11. \-Using a local high-density SNP map the borders have been placed between tok and tld on the proximal side and between CG6031 and CG13646 on the distal side. As CG6238/slingshot (96B10/B11) is complemented by the deficiency, the distal breakpoint must be situated somewhere between CG6031 (at 96B8) and Osbp (96B10). Original data will be published in PNAS soon. Sincerely, Knud realname: Knud Nairz