Originally published as Genetics Published Articles Ahead of Print on August 24, 2007.

Genetics, Vol. 177, 615-629, September 2007, Copyright © 2007
doi:10.1534/genetics.107.076216

The DrosDel Deletion Collection: A Drosophila Genomewide Chromosomal Deficiency Resource

* Department of Genetics, University of Cambridge, Cambridge CB2 3EH, United Kingdom, {dagger} Institute of Biology/Genetics, Martin Luther University, D-06120 Halle, Germany, {ddagger} Department of Genetics and Molecular Biology, University of Szeged, 6726 Szeged, Hungary, § Institute of Biochemistry, Biological Research Center, Szeged H-6726, Hungary, ** Department of Molecular Biology, Umeå University, S-901 87 Umeå, Sweden, {dagger}{dagger} Zoologisches Institut der Universitat Zurich, 8057 Zurich, Switzerland, {ddagger}{ddagger} CIC Biogune, Parque Technologico de Bizkaia, Derio 48160, Spain, §§ Institut für Genetik, Universität Mainz, 55128 Mainz, Germany, *** Department of Developmental Genetics, Deutsches Krebsforschungszentrum, D-69120 Heidelberg, Germany and {dagger}{dagger}{dagger} Departament de Genetica, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain

1 Corresponding author: Department of Genetics, University of Cambridge, Downing St., Cambridge CB2 3EH, United Kingdom.
E-mail: s.russell{at}gen.cam.ac.uk

We describe a second-generation deficiency kit for Drosophila melanogaster composed of molecularly mapped deletions on an isogenic background, covering ~77% of the Release 5.1 genome. Using a previously reported collection of FRT-bearing P-element insertions, we have generated 655 new deletions and verified a set of 209 deletion-bearing fly stocks. In addition to deletions, we demonstrate how the P elements may also be used to generate a set of custom inversions and duplications, particularly useful for balancing difficult regions of the genome carrying haplo-insufficient loci. We describe a simple computational resource that facilitates selection of appropriate elements for generating custom deletions. Finally, we provide a computational resource that facilitates selection of other mapped FRT-bearing elements that, when combined with the DrosDel collection, can theoretically generate over half a million precisely mapped deletions.


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