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Updated: Dec 29, 2025
09:23
Understanding the Impact of Temperate Bacteriophages on Their Lysogens Through Transcriptomics
Published on: January 5, 2024
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A window into lysogeny: revealing temperate phage biology with transcriptomics.
Siân V Owen1,2, Rocío Canals2,3, Nicolas Wenner2
1Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.
Microbial Genomics
|February 6, 2020
Summary
Bacterial prophages enhance host fitness with beneficial genes. This study uses RNA sequencing to identify highly expressed prophage genes, discovering a novel RNA that prevents superinfection by other phages.
Area of Science:
- Bacteriology
- Virology
- Genomics
Background:
- Prophages are integrated viral DNA within bacterial genomes, often providing beneficial traits like phage resistance.
- Accessory genes (morons) encoded by prophages are frequently expressed, but identifying them solely from DNA is difficult.
Purpose of the Study:
- To explore the transcriptional activity of prophages within bacterial hosts.
- To develop a method for identifying functionally significant prophage accessory loci using transcriptomic data.
- To discover novel prophage-encoded genes and regulatory elements.
Main Methods:
- Analysis of bacterial RNA-sequencing data from five *Salmonella* prophages.
- Utilizing transcriptomic data to identify highly expressed prophage regions.
- Characterization of novel RNA species and their functions.
Main Results:
- Transcriptomic data effectively enriches for expressed prophage accessory loci.
- Identification of a novel antisense RNA, STnc6030, in prophage BTP1.
- STnc6030 was shown to mediate superinfection exclusion against phage BTP1.
Conclusions:
- Bacterial transcriptomic datasets are a valuable tool for investigating temperate phage biology.
- The study successfully identified a novel functional prophage element using transcriptomic analysis.
- This approach aids in understanding prophage-host interactions and phage-encoded functions.
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