Subject: Df information The following information about deletions in the Bloomington collection was provided by Adelaide Carpenter, Cambridge University (1/03). Revised cytological breakpoints: Df(3R)DG2 89E9;91A3-7 Df(3R)RD31 89E2-3;90D2-4 Df(3R)P14 90C7+;91B1-2 Df(3R)Cha1a 91A8-B1;91F12-92A1 Df(3R)sr16 90C7-8;90E1-2 Df(3R)DG4 90D2+;90F6-8 The following combinations are lethal: Df(3R)p14/Df(3R)Cha7 Df(3R)P14/Df(3R)Cha1a Df(3R)DG2/Df(3R)Cha7 Df(3R)RD31/Df(3R)sr16 Df(3R)RD31/Df(3R)DG4 Df(3R)DG4/Df(3R)Cha7 The following combinations are viable and female fertile: Df(3R)sr16/Df(3R)Cha7 Df(3R)sr16/Df(3R)Cha1a Df(3R)DG4/Df(3R)Cha1a