Isolation and characterization of Df(2L)BSC291
Stacey Christensen and Kevin Cook
Bloomington Stock Center
Indiana University
Df(2L)BSC291 was isolated as a FLP recombinase-induced recombination event involving P{XP}miltd03910 and PBac{WH}f06883. The deletion was isolated as a chromosome lacking miniwhite markers in progeny of P{hsFLP}1, y1 w1118; P{XP}miltd03910/PBac{WH}f06883 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}BSC291 from the segment of P{XP}miltd03910 to the left of its FRT site and the segment of PBac{WH}f06883 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)BSC291 predicted from the Release 5 genomic coordinates of the transposable element insertions sites are 27D6;27F2. It failed to complement wgSp-1 and Wnt4C1.