PMID- 38502479 OWN - NLM STAT- MEDLINE DCOM- 20240321 LR - 20240321 IS - 1940-6029 (Electronic) IS - 1064-3745 (Linking) VI - 2784 DP - 2024 TI - SABER-FISH in Hydractinia. PG - 77-85 LID - 10.1007/978-1-0716-3766-1_5 [doi] AB - In situ hybridization allows the detection of nucleic acid sequences in fixed cells and tissues. The gelatinous nature of cnidarians and Hydractinia demands extensive and exhausting protocols to detect RNA transcripts with traditional methods (e.g., colorimetric in situ hybridization). Signal amplification by exchange reaction (SABER) fluorescence in situ hybridization (FISH) enables simplifying and multiplex imaging of RNA targets in a rapid and cost-effective manner. In one enzymatic reaction, SABER-FISH uses a strand-displacing polymerase and catalytic DNA hairpin to generate FISH probes with adjustable signal amplification, allowing highly sensitive detection of nucleic acids and reducing the number of required probes. Here I describe the methodology to detect transcripts within the cells of Hydractinia by SABER-FISH in whole-mount samples. CI - (c) 2024. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Salinas-Saavedra, Miguel AU - Salinas-Saavedra M AD - University of Galway, Galway, Ireland. LA - eng PT - Journal Article PL - United States TA - Methods Mol Biol JT - Methods in molecular biology (Clifton, N.J.) JID - 9214969 RN - 63231-63-0 (RNA) RN - 0 (Nucleic Acids) RN - Hydractinia SB - IM MH - In Situ Hybridization, Fluorescence/methods MH - *RNA MH - *Nucleic Acids MH - *Hydrozoa OTO - NOTNLM OT - Cnidaria OT - Hydractinia OT - In situ hybridization OT - RNA OT - SABER-FISH EDAT- 2024/03/19 18:42 MHDA- 2024/03/21 12:48 CRDT- 2024/03/19 12:21 PHST- 2024/03/21 12:48 [medline] PHST- 2024/03/19 18:42 [pubmed] PHST- 2024/03/19 12:21 [entrez] AID - 10.1007/978-1-0716-3766-1_5 [doi] PST - ppublish SO - Methods Mol Biol. 2024;2784:77-85. doi: 10.1007/978-1-0716-3766-1_5.