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The Q System: A Repressible Binary System for Transgene Expression, Lineage Tracing, and Mosaic Analysis

Open access
Potter, Christopher J., Tasic, Bosiljka, Russler, Emilie V., Liang, Liang, Luo, Liqun·2010·Cell

Abstract

Summary We describe a new repressible binary expression system based on the regulatory genes from the Neurospora qa gene cluster. This ‘Q system’ offers attractive features for transgene expression in Drosophila and mammalian cells: low basal expression in the absence of the transcriptional activator QF, high QF-induced expression, and QF repression by its repressor QS. Additionally, feeding flies quinic acid can relieve QS repression. The Q system offers many applications including: 1) intersectional ‘logic gates’ with the GAL4 system for manipulating transgene expression patterns, 2) GAL4-independent MARCM analysis, 3) coupled MARCM analysis to independently visualize and genetically manipulate siblings from any cell division. We demonstrate the utility of the Q system in determining cell division patterns of a neuronal lineage and gene function in cell growth and proliferation, and in dissecting neurons responsible for olfactory attraction. The Q system can be expanded to other uses in Drosophila, and to any organism conducive to transgenesis.

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Metadata

Authors
Potter, C. J., Tasic, B., Russler, E. V., Liang, L., & Luo, L.
Venue
Cell
Publisher
Elsevier BV
Published
2010-04
Volume
141
Issue
3
Pages
536-548
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2157071511
Cited by
604
References
2
FWCI
13.35
Type
journal article
Language
en
Open access
bronze

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Potter, C. J., Tasic, B., Russler, E. V., Liang, L., & Luo, L. (2010). The Q System: A Repressible Binary System for Transgene Expression, Lineage Tracing, and Mosaic Analysis. Cell. https://doi.org/10.1016/j.cell.2010.02.025

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