Isolation and characterization of Df(3R)BSC56 Rachel Andrade, Jennifer Deal, Megan Deal and Kevin Cook Bloomington Drosophila Stock Center, Indiana University Df(3R)BSC56 was isolated as a P transposase-induced male recombination event involving P{hsneo}hhneo56 and P{PZ}pnt07825. The deletion was isolated as a st1-ca1 recombinant chromosome from the cross st1 Sbsbd-1 es ro1 ca1 females x CyO, H{PDelta2-3}HoP2.1/+; st1 P{hsneo}hhneo56/P{PZ}pnt07825 ca1 males. Polytene chromosome squashes showed a fusion between the 94E1 band and the 94F1,2 doublet band; consequently, the breakpoints are 94E1-2;94F1-2. Df(3R)BSC56 failed to complement cnc03921, orbdec, pntDelta88 and Df(3R)BSC55.