Subject: ADRC: 691C Dear Jiong and Frank, I am writing in connection with your abstract for the upcoming Washington DC ADRC: 'Analysis of no terminal filament, a gene involved in ovarian morphogenesis.' You write about a new gene, ntf. Do you have a cytological location for ntf? It is nice if we can keep as many gene records anchored to the map as possible. Thank you for your help, with best wishes, Rachel. Subject: ntf location Dear Dr. Drysdale, The ntf mutant was isolated from a P-element mutagenesis screen, but unfortunately the mutation was not caused by P-element insertion. I am currently mapping this gene, the approximate location is 60A-D. Sincerely yours, Jiong Chen