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  • 1.
    Jacobsson, Linn
    et al.
    Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology).
    Skottheim Honn, John
    Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology).
    Ekström, Karin
    Rasmuson-Lestander, Åsa
    Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology).
    Empty spiracles represses twin-of-eyeless in the Drosophila embryonic headManuscript (preprint) (Other academic)
    Abstract [en]

    The specification of the eye-antennal disc primordium in the Drosophila embryo requires the expression of two paralogous Pax6 genes: twin of eyeless (toy) and eyeless (ey). toy is considered to be the first eye specification gene expressed in the regulatory network that governs eye formation and the gene that, in turn, activates eyeless. What regulates toy expression is, however, still unclear. We show, by misexpression and mutant analysis, that the head-specific gene empty spiracles alters the expression pattern of Toy in the head region around the visual primordia.

  • 2.
    Rasmuson-Lestander, Å
    et al.
    Umeå University, Faculty of Science and Technology, Molecular Biology (Faculty of Science and Technology).
    Ekström, K
    Umeå University, Faculty of Science and Technology, Molecular Biology (Faculty of Science and Technology).
    Genetic and molecular analysis of a set of unstable white mutants in Drosophila melanogaster.1996In: Genetica, ISSN 0016-6707, Vol. 98, no 2, p. 179-92Article in journal (Refereed)
  • 3. Ryder, Edward
    et al.
    Ashburner, Michael
    Bautista-Llacer, Rosa
    Drummond, Jenny
    Webster, Jane
    Johnson, Glynnis
    Morley, Terri
    Chan, Yuk Sang
    Blows, Fiona
    Coulson, Darin
    Reuter, Gunter
    Baisch, Heiko
    Apelt, Christian
    Kauk, Andreas
    Rudolph, Thomas
    Kube, Maria
    Klimm, Melanie
    Nickel, Claudia
    Szidonya, Janos
    Maróy, Peter
    Pal, Margit
    Rasmuson-Lestander, Åsa
    Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology).
    Ekström, Karin
    Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology).
    Stocker, Hugo
    Hugentobler, Christoph
    Hafen, Ernst
    Gubb, David
    Pflugfelder, Gert
    Dorner, Christian
    Mechler, Bernard
    Schenkel, Heide
    Marhold, Joachim
    Serras, Florenci
    Corominas, Montserrat
    Punset, Adrià
    Roote, John
    Russell, Steven
    The DrosDel deletion collection: A Drosophila genomewide chromosomal deficiency resource2007In: Genetics, ISSN 0016-6731, E-ISSN 1943-2631, Vol. 177, no 1, p. 615-629Article in journal (Refereed)
    Abstract [en]

    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 facilitatesselection 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.

  • 4. Ryder, Edward
    et al.
    Blows, Fiona
    Ashburner, Michael
    Bautista-Llacer, Rosa
    Coulson, Darin
    Drummond, Jenny
    Webster, Jane
    Gubb, David
    Gunton, Nicola
    Johnson, Glynnis
    O'Kane, Cahir J
    Huen, David
    Sharma, Punita
    Asztalos, Zoltan
    Baisch, Heiko
    Schulze, Janet
    Kube, Maria
    Kittlaus, Kathrin
    Reuter, Gunter
    Maroy, Peter
    Szidonya, Janos
    Rasmuson-Lestander, Åsa
    Umeå University, Faculty of Science and Technology, Molecular Biology (Faculty of Science and Technology).
    Ekström, Karin
    Umeå University, Faculty of Science and Technology, Molecular Biology (Faculty of Science and Technology).
    Dickson, Barry
    Hugentobler, Christoph
    Stocker, Hugo
    Hafen, Ernst
    Lepesant, Jean Antoine
    Pflugfelder, Gert
    Heisenberg, Martin
    Mechler, Bernard
    Serras, Florenci
    Corominas, Montserrat
    Schneuwly, Stephan
    Preat, Thomas
    Roote, John
    Russell, Steven
    The DrosDel collection: a set of P-element insertions for generating custom chromosomal aberrations in Drosophila melanogaster.2004In: Genetics, ISSN 0016-6731, Vol. 167, no 2, p. 797-813Article in journal (Refereed)
    Abstract [en]

    We describe a collection of P-element insertions that have considerable utility for generating custom chromosomal aberrations in Drosophila melanogaster. We have mobilized a pair of engineered P elements, p[RS3] and p[RS5], to collect 3243 lines unambiguously mapped to the Drosophila genome sequence. The collection contains, on average, an element every 35 kb. We demonstrate the utility of the collection for generating custom chromosomal deletions that have their end points mapped, with base-pair resolution, to the genome sequence. The collection was generated in an isogenic strain, thus affording a uniform background for screens where sensitivity to genetic background is high. The entire collection, along with a computational and genetic toolbox for designing and generating custom deletions, is publicly available. Using the collection it is theoretically possible to generate >12,000 deletions between 1 bp and 1 Mb in size by simple eye color selection. In addition, a further 37,000 deletions, selectable by molecular screening, may be generated. We are now using the collection to generate a second-generation deficiency kit that is precisely mapped to the genome sequence.

1 - 4 of 4
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