Complete Genome Sequence of Stenotrophomonas maltophilia Podophage Piffle

Megan Kirchhoff1, Carlos Ortega1, James Clark1,2

  • 1Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, USA.

Insights

We sequenced the genome of Stenotrophomonas maltophilia podophage Piffle, revealing its close genetic relationship to the N4-like podophage Pokken. This finding aids in understanding phage diversity and potential applications against bacterial infections.

Area of Science:

  • Microbiology
  • Genomics
  • Virology

Background:

  • Stenotrophomonas maltophilia is a multidrug-resistant opportunistic pathogen responsible for hospital-acquired infections.
  • Bacteriophages (phages) are viruses that infect bacteria and are being explored for therapeutic potential.

Purpose of the Study:

  • To characterize the genome of Stenotrophomonas maltophilia podophage Piffle.
  • To determine the phylogenetic relationship of Piffle to other known phages.

Main Methods:

  • Whole-genome sequencing of podophage Piffle.
  • Comparative genomic analysis with related phages, including Pokken.
  • Bioinformatic analysis of shared proteins and nucleotide identity.

Main Results:

  • The genome of Piffle is 76,332 base pairs in length.
  • Piffle shares over 86% genome-wide nucleotide identity with S. maltophilia podophage Pokken.
  • 84 proteins are shared between Piffle and Pokken, indicating close evolutionary relatedness.

Conclusions:

  • Podophage Piffle represents a novel strain closely related to the N4-like phage group.
  • Genomic characterization of Piffle provides insights into S. maltophilia-infecting phage diversity.
  • Understanding these phage-host interactions is crucial for developing phage-based therapies against S. maltophilia infections.