Isolation and characterization of Df(3R)BSC548
Stacey Christensen, Kim Cook and Kevin Cook
Bloomington Stock Center
Indiana University
Df(3R)BSC548 was isolated as a FLP recombinase-induced recombination event involving P{XP}d08662 and PBac{WH}CG1234f00646. The deletion was isolated as a chromosome lacking miniwhite markers in progeny of w1118; P{hs-hid}3, Dr1/TM6C, Sb1 females crossed to P{hsFLP}1, y1 w1118; P{XP}d08662/PBac{WH}CG1234f00646 males. The males were heat shocked as larvae as described in Parks et al., Nature Genetics 36: 288-292, 2004 (FBrf0175003). This cross and crosses in preceding and succeeding generations maintained the original genetic background of the Exelixis insertion stocks (Thibault et al., Nature Genetics 36: 283-287, 2004; FBrf0175002). The recombination event generated the genetic element P+PBac{XP5.WH5}BSC548 from the segment of P{XP}d08662 to the left of its FRT site and the segment of PBac{WH}CG1234f00646 to the right of its FRT site. Its presence was verified using the PCR methods and primers described in Parks et al. The cytological breakpoints of Df(3R)BSC548 predicted from the Release 5 genomic coordinates of the transposable element insertions sites are 84C8;84D3. Df(3R)BSC548 failed to complement sas15 and lap1.