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  • Title: The secretory proteins of the larval salivary gland of Drosophila melanogaster: Cytogenetic correlation of a protein and a puff.
    Author: Velissariou V, Ashburner M.
    Journal: Chromosoma; 1980; 77(1):13-27. PubMed ID: 6768531.
    Abstract:
    The gene for a major salivary gland secretion protein (Sgs-1) in Drosophila melanogaster has been mapped to chromosome 2 between dp (13.0) and cl (16.5). In the late third instar larva, a puff forms in this region. This puff (25 B) regresses as the ecdysteroid concentration increases prior to puparium formation. Quantitative analysis of the secretory protein 1, showed that, when present in extra dose, region 25 B results in a significant elevation in its relative amount. This suggests that the structural gene for this protein is localized in this region and that its synthesis is directly correlated to the activity of the 25 B puff.
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