Isolation and characterization of Df(2R)BSC26 Megan Deal-Herr and Kevin Cook Bloomington Drosophila Stock Center, Indiana University Df(2R)BSC26 was isolated as a P transposase-induced male recombination event involving P{lacW}corak08713 and P{PZ}hts01103. The deletion was isolated as a cn+-bw+recombinant chromosome from the cross cn1 bw1 females X cn1 P{PZ}hts01103/ P{lacW}corak08713 bw1 sp1; TMS, Sb1 P{Delta2-3}99B/+ males. Polytene chromosome squashes showed the breakpoints 56C4;56D6-10. The deficiency chromosome retains the miniwhite marker from P{lacW}corak08713. Df(2R)BSC26 failed to complement wblE4.