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Citation
Singh, S.R., Oh, S.W., Liu, W., Chen, X., Zheng, Z., Hou, S.X. (2006). Rap-GEF/Rap signaling restricts the formation of supernumerary spermathecae in Drosophila melanogaster.  Dev. Growth Differ. 48(3): 169--175.
FlyBase ID
FBrf0190266
Publication Type
Research paper
Abstract

Sperm storage in the female is a key factor for reproductive success in a variety of organisms, including Drosophila melanogaster. The spermathecae (SP) are the Drosophila organs for long-term storage. While wild-type female flies have two SP, occasionally, three or four SP have been observed in mutant flies. However, the molecular mechanism of SP formation is unknown. Here we show that loss of function of a Drosophila Rap-GEF (GEF26) result in an occurrence of the supernumerary SP; females have three SP (varies from 11 to 62% in different allele combinations) instead of the normal two SP. In addition, the Gef26 mutant flies also have ectopic wing veins and extra mechanosensory organs. The supernumerary SP phenotype of the Gef26 mutation can be enhanced by the Drosophila Rap mutations and rescued by overexpressing the cell adhesion molecule DE-cadherin. These data suggest that the Rap-GEF/Rap signaling controls the formation of supernumerary spermathecae through modulating cell adhesion in Drosophila.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Dev. Growth Differ.
    Title
    Development, Growth and Differentiation
    Publication Year
    1969-
    ISBN/ISSN
    0012-1592
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