What question did this study set out to answer?

This research evaluates the implications of mosaic activation of the hsp70l promoter for transgene functionality.

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March 8, 2026

Mosaic activation of the zebrafish hsp70l heat shock promoter: Implications for interpreting transgenes.

Key Points

This research evaluates the implications of mosaic activation of the hsp70l promoter for transgene functionality.
Assessment of hsp70l promoter activation in zebrafish
Comparison of cell-autonomous and non-cell-autonomous gene functions
Analysis of controls for interpreting transgene activity
Mosaic activation provides a beneficial tool for temporal gene activation
Caution is necessary when associating transgene behavior with cell-autonomy
Certain contexts show clearer functional insights from the transgene

Abstract

The mosaic activation of the hsp70l promoter does not disqualify it as a powerful temporal gene activation tool. Mosaic activation can be used as an advantage for contexts where a transgene functions cell-autonomously; however, caution and proper controls are necessary to interpret gene functions in contexts where a transgene acts non-cell-autonomously.

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Institutions

University of Pittsburgh

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