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Updated: Feb 8, 2026

Gene Trapping Using Gal4 in Zebrafish
Published on: September 29, 2013
Analysis of a conditional gene trap reveals that tbx5a is required for heart regeneration in zebrafish
Viktorija Grajevskaja1,2, Diana Camerota1, Gianfranco Bellipanni1
1Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA, United States of America.
Abstract:
The ability to conditionally inactivate genes is instrumental for fine genetic analysis of all biological processes, but is especially important for studies of biological events, such as regeneration, which occur late in ontogenesis or in adult life. We have constructed and tested a fully conditional gene trap vector, and used it to inactivate tbx5a in the cardiomyocytes of larval and adult zebrafish. We observe that loss of tbx5a function significantly impairs the ability of zebrafish hearts to regenerate after ventricular resection, indicating that Tbx5a plays an essential role in the transcriptional program of heart regeneration.
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