Genetics, Vol. 168, 1477-1489, November 2004, Copyright © 2004
doi:10.1534/genetics.104.030882

Gene Deletions by Ends-In Targeting in Drosophila melanogaster

Department of Biology, University of Utah, Salt Lake City, Utah 84112

1 Corresponding author: Department of Biology, University of Utah, 257 S. 1400 East, Room 201, Salt Lake City, UT 84112.
E-mail: golic{at}biology.utah.edu

Following the advent of a gene targeting technique in Drosophila, different methods have been developed to modify the Drosophila genome. The initial demonstration of gene targeting in flies used an ends-in method, which generates a duplication of the target locus. The duplicated locus can then be efficiently reduced to a single copy by generating a double-strand break between the duplicated segments. This method has been used to knock out target genes by introducing point mutations. A derivative of this method is reported here. By using different homologous regions for the targeting and reduction steps, a complete deletion of the target gene can be generated to produce a definitive null allele. The breakpoints of the deletion can be precisely controlled. Unlike ends-out targeting, this method does not leave exogenous sequence at the deleted locus. Three endogenous genes, Sir2, Sirt2, and p53 have been successfully deleted using this method.




This article has been cited by other articles:


Home page
GeneticsHome page
Y. S. Rong
Loss of the Histone Variant H2A.Z Restores Capping to Checkpoint-Defective Telomeres in Drosophila
Genetics, December 1, 2008; 180(4): 1869 - 1875.
[Abstract] [Full Text] [PDF]


Home page
Proc. Natl. Acad. Sci. USAHome page
G. Gao, C. McMahon, J. Chen, and Y. S. Rong
A powerful method combining homologous recombination and site-specific recombination for targeted mutagenesis in Drosophila
PNAS, September 16, 2008; 105(37): 13999 - 14004.
[Abstract] [Full Text] [PDF]


Home page
Proc. Natl. Acad. Sci. USAHome page
A. J. Griswold, K. T. Chang, A. P. Runko, M. A. Knight, and K.-T. Min
Sir2 mediates apoptosis through JNK-dependent pathways in Drosophila
PNAS, June 24, 2008; 105(25): 8673 - 8678.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
J. L. Mueller, J. R. Linklater, K. Ravi Ram, T. Chapman, and M. F. Wolfner
Targeted Gene Deletion and Phenotypic Analysis of the Drosophila melanogaster Seminal Fluid Protease Inhibitor Acp62F
Genetics, March 1, 2008; 178(3): 1605 - 1614.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
D. S. Wei and Y. S. Rong
A Genetic Screen For DNA Double-Strand Break Repair Mutations in Drosophila
Genetics, September 1, 2007; 177(1): 63 - 77.
[Abstract] [Full Text] [PDF]


Home page
J. Cell Sci.Home page
A. Spierer, C. Seum, M. Delattre, and P. Spierer
Loss of the modifiers of variegation Su(var)3-7 or HP1 impacts male X polytene chromosome morphology and dosage compensation
J. Cell Sci., November 1, 2005; 118(21): 5047 - 5057.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
W. J. Gong and K. G. Golic
Genomic Deletions of the Drosophila melanogaster Hsp70 Genes
Genetics, November 1, 2004; 168(3): 1467 - 1476.
[Abstract] [Full Text] [PDF]