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    Genetics. 1998 Jan;148(1):277-86.

    A genetic screen to identify components of the sina signaling pathway in Drosophila eye development.

    Neufeld TP, Tang AH, Rubin GM.

    Source

    Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California, Berkeley 94720-3200, USA.

    Abstract

    Specification of the R7 photoreceptor cell in the developing Drosophila eye requires the seven in absentia (sina) gene. We demonstrate that ectopic expression of sina in all cells behind the morphogenetic furrow disrupts normal eye development during pupation, resulting in a severely disorganized adult eye. Earlier events of cell fate specification appear unaffected. A genetic screen for dominant enhancers and suppressors of this phenotype identified mutations in a number of genes required for normal eye development, including UbcD1, which encodes a ubiquitin conjugating enzyme; SR3-4a, a gene previously implicated in signaling downstream of Ras1; and a Drosophila homolog of the Sin3A transcriptional repressor.

    PMID:
    9475739
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC1459784
    Free PMC Article

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