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Published on: November 23, 2012
Complete genome sequences of Streptomyces griseus phages Spelly and Phredrick
Joyce Stamm1, Julie A Merkle1, Ava Abernathy1
1Department of Biology, University of Evansville , Evansville, Indiana, USA.
Abstract:
We present the complete genome sequences of two viruses with siphovirus morphology, isolated from soils collected in Southwestern Indiana using the host Streptomyces griseus. Spelly is a BE2 cluster phage with a 131,347-bp genome. Phredrick is a BK1 cluster phage with a 128,873-bp genome.
Insights
Researchers sequenced two novel siphoviruses, Spelly and Phredrick, isolated from Streptomyces griseus in Indiana soil. These bacteriophages, Spelly (BE2 cluster) and Phredrick (BK1 cluster), possess large genomes, expanding our understanding of microbial viruses.
Area of Science:
- Microbiology
- Virology
- Genomics
Background:
- Bacteriophages, viruses that infect bacteria, play crucial roles in microbial ecosystems.
- Siphoviruses are a common morphological group of bacteriophages.
- Understanding phage diversity is essential for microbial ecology and biotechnology.
Purpose of the Study:
- To present the complete genome sequences of two novel siphoviruses.
- To characterize newly isolated bacteriophages from soil environments.
Main Methods:
- Isolation of bacteriophages from soil samples using Streptomyces griseus as the host.
- Whole-genome sequencing of isolated phages.
- Bioinformatic analysis of phage genomes.
Main Results:
- Complete genome sequences for two siphoviruses, named Spelly and Phredrick, were obtained.
- Spelly is a BE2 cluster phage with a genome size of 131,347 base pairs.
- Phredrick is a BK1 cluster phage with a genome size of 128,873 base pairs.
Conclusions:
- The characterization of Spelly and Phredrick adds to the genomic database of siphoviruses.
- These findings contribute to the understanding of phage diversity in agricultural soil ecosystems.
- The large genome sizes suggest complex genetic मेकअप of these bacteriophages.
