A Mini-ISY100 Transposon Delivery System Effective in γ Proteobacteria
Emanuele Conte1, Linda Mende2, Ian Grainge2
1Institute of Molecular Cell and Systems Biology, University of Glasgow, Glasgow, United Kingdom.
Frontiers in Microbiology
|March 16, 2019
Summary
A new mini-ISY100 suicide vector enables rapid, in vivo creation of random transposon insertion libraries in diverse bacteria. This efficient system facilitates gene discovery across multiple species, simplifying genetic manipulation.
Area of Science:
- Microbiology
- Molecular Biology
- Genetics
Background:
- Transposons are essential tools for microbial genetic manipulation.
- ISY100 from Synechocystis sp. PCC6803 exhibits high transposition efficiency and TA target specificity.
Purpose of the Study:
- To design and validate a mini-ISY100 suicide vector for creating random transposon insertion libraries in vivo.
- To assess the vector's efficiency and applicability across various bacterial species.
Main Methods:
- Development of a mini-ISY100 suicide vector.
- Application of the vector in seven species of gamma proteobacteria via conjugation, chemical transformation, and electroporation.
- Analysis of transposition efficiency and insertion frequency.
Main Results:
- The mini-ISY100 system was successfully applied to seven species across four gamma proteobacteria orders.
- Conjugation consistently yielded the highest transposition efficiency compared to other delivery methods.
- The system was utilized to identify genes responsible for colony coloration in Shewanella oneidensis.
Conclusions:
- The developed mini-ISY100 suicide vector provides an efficient and rapid method for generating stable random transposon insertion libraries.
- This versatile tool simplifies genetic manipulation and gene discovery in a broad range of microorganisms.
- The protocol enables the creation of complete knock-out libraries within a week without prior host modification.
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