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Updated: May 11, 2026
05:30
CRISPR-Based Modular Assembly for High-Throughput Construction of a UAS-cDNA/ORF Plasmid Library
Published on: May 17, 2024
A versatile platform for creating a comprehensive UAS-ORFeome library in Drosophila.
Johannes Bischof1, Mikael Björklund, Edy Furger
1Institute of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
Development (Cambridge, England)
|May 3, 2013
Summary
Researchers developed an efficient strategy to create a large collection of transgenic Drosophila strains for gene function studies. This method utilizes site-specific integration and barcoding for streamlined generation and identification of fly lines.
Area of Science:
- Genetics
- Molecular Biology
- Developmental Biology
Background:
- Overexpression screens are crucial for studying gene function in Drosophila.
- Current methods lack comprehensive collections and efficient generation strategies for transgenic fly strains.
Purpose of the Study:
- To present an efficient strategy for generating large numbers of transgenic Drosophila strains.
- To establish a collection of 1149 UAS-Open Reading Frame (ORF) fly lines.
- To provide a basis for a systematic library of Gal4/UAS-regulated transgenes.
Main Methods:
- Utilized the site-specific ΦC31 integrase method for generating transgenic fly lines.
- Cloned 655 genes into two variants: native stop codon or C-terminal 3xHA tag.
- Employed plasmid pool injection with barcoding for unique strain identification.
- Developed an in vivo swapping technique for promoter and epitope tag exchange.
Main Results:
- Generated a collection of 1149 UAS-ORF transgenic Drosophila strains.
- Demonstrated the efficiency of barcoding for streamlining transgenic strain generation.
- Showcased the versatility of the ORF collection through the swapping technique.
Conclusions:
- The presented strategy enables efficient generation of large transgenic Drosophila collections.
- The established UAS-ORF fly line collection facilitates systematic gene function studies.
- This work lays the foundation for a comprehensive library of Gal4/UAS-regulated transgenes.
