Genomic characterization of Salmonella bacteriophages isolated from India

Karpe, Yogesh A. ; Kanade, Gayatri D. ; Pingale, Kunal D. ; Arankalle, Vidya A. ; Banerjee, Kalyan (2016) Genomic characterization of Salmonella bacteriophages isolated from India Virus Genes, 52 (1). pp. 117-126. ISSN 0920-8569

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Official URL: http://doi.org/10.1007/s11262-015-1269-7

Related URL: http://dx.doi.org/10.1007/s11262-015-1269-7

Abstract

Salmonella are a medically important Gram-negative foodborne pathogen. Genomic diversity of Salmonella is increasingly studied but at the same time, we have limited knowledge of Salmonella phage diversity. In this study, we have isolated Salmonella phages from sewage and river water. Genomic characterization of 12 Salmonella phages was carried out using next-generation sequencing platform. Newly sequenced phages were classified based on amino acid sequence phylogenetic analysis. In newly sequenced phages, several virulence genes, DNA metabolism genes, tRNA genes, antibiotic resistance genes and genes not having known role in the life cycle of phages were identified. Annotations of newly sequenced phage genome showed the presence of polymyxin-b resistance gene and penicillin binding protein. Annotation identified number of genes which are involved in DNA metabolism. Results suggest that most of the phages having G + C content different than their host possess DNA metabolism genes. The presence of tRNAs in the genome of Salmonella_phage38-India was identified; however, we did not observe any correlation between tRNA genes and overall codon usage in the phage genome. It is suggested that the phage-encoded tRNAs may increase fitness of phages. In summary, we isolated novel Salmonella phages, determined full genome sequences and provided phylogenetic analysis-based classification.

Item Type:Article
Source:Copyright of this article belongs to Springer Nature
Keywords:Bacteriophage genome; Bacteriophages; Salmonella bacteriophages; Virus
ID Code:130909
Deposited On:01 Dec 2022 07:13
Last Modified:01 Dec 2022 07:13

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