Isolation and characterization of Df(2L)BSC480
Stacey Christensen, Kim Cook and Kevin Cook
Bloomington Stock Center
Indiana University
Df(2L)BSC480 was isolated as a FLP recombinase-induced recombination event involving P{XP}d08987 and PBac{WH}f07098. The deletion was isolated as a chromosome lacking miniwhite markers in progeny of P{hsFLP}1, y1 w1118; P{XP}d08987/PBac{WH}f07098 males crossed to w1118; P{hs-hid}2, wgSp-1/SM6a females. These 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}BSC480 from the segment of P{XP}d08987 to the left of its FRT site and the segment of PBac{WH}f07098 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(2L)BSC480 predicted from the Release 5 genomic coordinates of the transposable element insertions sites are 22A5;22C3. Df(2L)BSC480 failed to complement cpbM143 and cpbF19.