Isolation and characterization of Df(3L)BSC438
Stacey Christensen, Kim Cook and Kevin Cook
Bloomington Stock Center
Indiana University
Df(3L)BSC438 was isolated as a FLP recombinase-induced recombination event involving P{XP}Usp36d06513 and PBac{WH}f05972. 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; P{XP}Usp36d06513/PBac{WH}f05972 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}BSC438 from the segment of P{XP}Usp36d06513 to the left of its FRT site and the segment of PBac{WH}f05972 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(3L)BSC438 predicted from the Release 5 genomic coordinates of the transposable element insertions sites are 64E7;64F4. Df(3L)BSC438 failed to complement vnC221.