Isolation and characterization of Df(1)BSC593
Stacey Christensen, Kim Cook and Kevin Cook
Bloomington Stock Center
Indiana University
Df(1)BSC593 was isolated as a FLP recombinase-induced recombination event involving P{XP}CG4678d00092 and PBac{WH}f06434. The deletion was isolated as a chromosome lacking miniwhite markers in progeny of P{XP}CG4678d00092/PBac{WH}f06434; MKRS, P{hsFLP}86E/+ females crossed to Binsinscy/Y males. These females 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}BSC593 from the segment of P{XP}CG4678d00092 to the left of its FRT site and the segment of PBac{WH}f06434 to the right of its FRT site. Its presence was verified using the PCR methods and primers described in Parks et al. Exelixis, Inc. determined the insertion site of P{XP}CG4678d00092 to be at Release 3 genomic coordinate 16426857 on the X chromosome. This corresponds to 15A1 on the Release 3 and Release 5 genome maps. The predicted position of PBac{WH}f06434 on the Release 5 map is 15C1. Consequently, the cytological breakpoints of Df(1)BSC593 are predicted to be 15A1;15C1. It failed to complement if3.