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Identification of five novel tectiviruses in Bacillus strains: analysis of a highly variable region generating genetic diversity. | LitMetric

Identification of five novel tectiviruses in Bacillus strains: analysis of a highly variable region generating genetic diversity.

Res Microbiol

Center of Excellence in Biological Interactions, Department of Biological and Environmental Science and Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland.

Published: August 2013

AI Article Synopsis

Article Abstract

Our biosphere is abundant with unique and small genes for which no homologs are known. These genes, often referred to as orphans or ORFans, are commonly found in bacteriophage genomes but their origins remain unclear. We discovered five novel tectivirus-like genetic elements by screening more than five-hundred Bacillus strains. A highly variable region (HVR) of these viruses was shown to harbor ORFans in most of these otherwise well-conserved bacteriophages. Previous studies demonstrated that mutations close to this region dramatically alter bacteriophage gene regulation, suggesting that the acquisition of those ORFans may provide a source of genetic diversity that is then subject to genetic selection during bacteriophage evolution.

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Source
http://dx.doi.org/10.1016/j.resmic.2012.10.011DOI Listing

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