Isolation and characterization of Df(3R)BSC495
Stacey Christensen, Kim Cook and Kevin Cook
Bloomington Stock Center
Indiana University
Df(3R)BSC495 was isolated as a FLP recombinase-induced recombination event involving PBac{WH}Lnkf05062 and P{XP}CG5455d02447. The deletion was isolated as a chromosome lacking miniwhite markers in progeny of w1118; Dr1/TM6C, Sb1 females crossed to P{hsFLP}1, y1 w1118; PBac{WH}Lnkf05062/P{XP}CG5455d02447 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}BSC495 from the segment of PBac{WH}Lnkf05062 to the left of its FRT site and the segment of P{XP}CG5455d02447 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)BSC495 predicted from the Release 5 genomic coordinates of the transposable element insertions sites are 96F6;97B4. Df(3R)BSC495 failed to complement dys2.