The Draft Genome Sequence of the Yersinia entomophaga Entomopathogenic Type Strain MH96T

Mark R H Hurst1, Amy Beattie2, Eric Altermann3,4

  • 1AgResearch, Farm Systems & Environment, Lincoln Research Centre, Christchurch 8140, New Zealand. mark.hurst@agresearch.co.nz.

Toxins
|May 18, 2016
PubMed

Insights

The draft genome of Yersinia entomophaga reveals numerous toxins and virulence factors. These genetic elements likely contribute to its ability to survive in insect hemocoel and cause incapacitation.

Area of Science:

  • Microbiology
  • Genomics
  • Insect Pathology

Background:

  • Yersinia entomophaga is an insect pathogen.
  • Understanding its genetic makeup is crucial for insect pest control.

Purpose of the Study:

  • To report the draft genome sequence of Yersinia entomophaga type strain MH96T.
  • To identify potential virulence factors and toxin genes within the genome.

Main Methods:

  • Whole-genome sequencing of Yersinia entomophaga MH96T.
  • In silico analysis of the genome for gene content and functional annotation.

Main Results:

  • The Yersinia entomophaga genome is approximately 4.28 Mb with high similarity to Yersinia nurmii.
  • The genome encodes diverse toxins, including two type III secretion systems, rhs-associated gene clusters, VIP2 toxin, PirAB binary toxin, and mammalian toxin orthologs.
  • Numerous hypothetical proteins, effector proteins (e.g., LopT), proteolytic enzymes, and iron metabolism genes were identified.

Conclusions:

  • The identified virulence systems suggest mechanisms for Yersinia entomophaga survival in insect hemocoel.
  • These genetic determinants are likely essential for incapacitating insect hosts.