Abstract
The passage of highly specialized germ cells to future generations is essential for the maintenance of species. To date, conventional genetic screens identified relatively few genes that are involved in germ cell development. We aimed to identify germ line specific genes on the X chromosome of Drosophila melanogaster by the application of a new method: the dual-tagging gene-trap system (GT). A modified version of the gene-trap element was used in our experiments and the resulting insertional mutants were screened for grandchild-less phenotype with the help of the attached-X system and a sensitized genetic background developed in our laboratory. Among the 800 insertions mapped to the X chromosome 33 new mutations were identified that exhibited grandchild-less phenotype, 6 gave visible phenotype and 12 were conditional lethal. The cloning of a selected group of the 33 lines showing grandchild-less phenotype confirmed that we have identified new candidates for genes involved in germ cell development. One of them named pebbled (peb) is discussed in details in this paper. Finally, we also describe a novel automatic selection system developed in our laboratory which enables the extension of the GT mutagenesis to the autosomes.
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Vilmos, P., Henn, L., Szathmári, M. et al. Application of the Dual-Tagging Gene Trap Method Combined with a Novel Automatic Selection System to Identify Genes Involved in Germ Cell Development in Drosophila Melanogaster. BIOLOGIA FUTURA 58 (Suppl 1), 81–94 (2007). https://doi.org/10.1556/ABiol.58.2007.Suppl.7
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DOI: https://doi.org/10.1556/ABiol.58.2007.Suppl.7