Quantitative mRNA imaging throughout the entire Drosophila brain.

Long, Xi; Colonell, Jennifer; Wong, Allan M; Singer, Robert H; Lionnet, Timothée · Nat Methods · 2017

basic_science · Level V

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Abstract

We describe a fluorescence in situ hybridization method that permits detection of the localization and abundance of single mRNAs (smFISH) in cleared whole-mount adult Drosophila brains. The approach is rapid and multiplexable and does not require molecular amplification; it allows facile quantification of mRNA expression with subcellular resolution on a standard confocal microscope. We further demonstrate single-mRNA detection across the entire brain using a custom Bessel beam structured illumination microscope (BB-SIM).

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