A protocol for whole-mount immuno-coupled hybridization chain reaction (WICHCR) in zebrafish embryos and larvae.
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Characterizing mRNA and protein expression with temporal and spatial resolution is a valuable component of nearly every developmental study. Here, we describe a protocol that combines in situ hybridization chain reaction (HCR) and immunofluorescence, allowing for the detection of mRNAs and proteins simultaneously, in zebrafish embryos and larvae. This protocol expands the flexibility of multiplexed HCR by coupling it with traditional immunofluorescence detection. For complete details on the use and execution of this protocol, please refer to Choi et al. (2010, 2016, 2018) and Howard et al. (2021).


In situ HCR
Gene Expression
Developmental biology
In Situ Hybridization
Model Organisms
Molecular Biology


Ibarra-García-Padilla, Rodrigo
Howard, Aubrey Gaylon Adam 4th
Singleton, Eileen Willey
Uribe, Rosa Anna

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