The sparse driver system for in vivo single-cell labeling and manipulation in Drosophila
Xu, C.; Luo, L.
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In this protocol, we introduce a sparse driver system for cell-type specific single-cell labeling and manipulation in Drosophila, enabling complete and simultaneous expression of multiple transgenes in the same cells. The system precisely controls expression probability and sparsity via mutant FRT sites with reduced recombination efficiency and tunable FLP levels adjusted by heat-shock durations. We demonstrate that this generalizable toolkit enables tunable sparsity, multi-color staining, single-cell trans-synaptic tracing, single-cell manipulation, and in vivo analysis of cell-autonomous gene function. For details on the use and execution of this protocol, please refer to Xu et al. 2024. GRAPHICAL ABSTRACT O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=193 SRC="FIGDIR/small/626507v1_ufig1.gif" ALT="Figure 1"> View larger version (77K): org.highwire.dtl.DTLVardef@1a53b9org.highwire.dtl.DTLVardef@6eaa3aorg.highwire.dtl.DTLVardef@169cb2forg.highwire.dtl.DTLVardef@9aafb3_HPS_FORMAT_FIGEXP M_FIG C_FIG
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