Isolation and characterization of Df(2R)BSC434
Stacey Christensen, Kim Cook and Kevin Cook
Bloomington Stock Center
Indiana University
Df(2R)BSC434 was isolated as a FLP recombinase-induced recombination event involving P{XP}d06837 and PBac{WH}krimpf06583. The deletion was isolated as a chromosome lacking miniwhite markers in progeny of P{hsFLP}1, y1 w1118; P{XP}d06837/PBac{WH}krimpf06583 males crossed to w1118; P{hs-hid}2, wgSp-1/CyO 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}BSC434 from the segment of P{XP}d06837 to the left of its FRT site and the segment of PBac{WH}krimpf06583 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(2R)BSC434 predicted from the Release 5 genomic coordinates of the transposable element insertions sites are 52F6;53A1. It failed to complement shark1 and Df(2R)Exel6063.