PUBLICATION

Comparative in situ hybridization protocols in zebrafish

Authors
Dunn, K., Vashisht, A., Hammond-Weinberger, D.R.
ID
ZDB-PUB-220907-39
Date
2022
Source
Biotechniques   73(3): 123-130 (Journal)
Registered Authors
Keywords
Cabin1, atoh1b, comparative, gene expression analysis, protocol, stain, technique, zebrafish
MeSH Terms
  • Animals
  • Chlorides
  • Dextran Sulfate
  • In Situ Hybridization
  • Polyvinyl Alcohol*
  • Zebrafish*/genetics
PubMed
36065907 Full text @ Biotechniques
Abstract
In situ hybridization is a commonly used technique in molecular biology to assess the temporal and spatial expression of a given gene. As a long and labor-intensive protocol, double in situ hybridization, which detects two genes in series, is challenging and can require a lot of troubleshooting. Optional additives, polyvinyl alcohol and dextran sulfate, were tested in a standard in situ hybridization protocol and several colorimetric stain pairings using double in situ hybridization in zebrafish embryos. Optional additives can improve staining time and reduce nonspecific background. Nitro-blue tetrazolium chloride/5-bromo-4-chloro-3-indolyl phosphate (BCIP) + Fast Red/BCIP was the most effective stain pairing. As a proof-of-concept, this work shows that Cabin1 and atoh1b are expressed in distinct regions of the developing zebrafish brain.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping