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Genetic research

DNA Viruses in Edible Insects: Insights from New Research

Strategic Insights

— 1 min read

Researchers at Kyungpook National University have conducted a study to investigate the composition of DNA viruses in the hindgut contents of Protaetia brevitarsis larvae obtained from five different farms. The study focused on understanding the gut virome of insects and its implications for animal health and homeostasis. The research found that the intestinal tract of P. brevitarsis, which contains a diverse array of microbiota, including viruses, plays a critical role in animal health and homeostasis.

Key Takeaways:

  • The study investigated the composition of DNA viruses in the hindgut contents of Protaetia brevitarsis larvae obtained from five different farms using metagenomic sequencing.
  • The research found significant differences in the composition of the gut bacterial microbiota between farms, with viral reads comprising approximately 41.2%, 15.0%, 4.3%, 4.0%, and 1.6% of metagenomic sequences from the farms Tohamsan gumbengi farm (TO), Secomnalagum gumbengi (IS), Gumbengi brothers (BR), Kyungpook farm (KB), and Jhbio (JH), respectively.
  • More than 98% of the DNA viruses in the hindgut were bacteriophages, mainly belonging to the Siphoviridae family. At the species level, Phage Min1, infecting the genus Microbacterium, was detected in all farms, and it was the most abundant bacteriophage in intestinal microbiota, with a prevalence of 0.9% to 29.09%.
  • The study concluded that the condition of substrates used as feed is more important than genetic factors in shaping the intestinal viral microbiota of P. brevitarsis larvae.
  • The research would be useful as reference data for understanding the hindgut microbiota of P. brevitarsis larvae and, more generally, the gut virome of insects.

Statistics:

  • 41.2% of metagenomic sequences from the farm Tohamsan gumbengi farm (TO) comprised viral reads.
  • 15.0% of metagenomic sequences from the farm Secomnalagum gumbengi (IS) comprised viral reads.
  • 4.3%, 4.0%, and 1.6% of metagenomic sequences from the farms Gumbengi brothers (BR), Kyungpook farm (KB), and Jhbio (JH) respectively, comprised viral reads.
  • 98% of DNA viruses in the hindgut were bacteriophages, mainly belonging to the Siphoviridae family.
  • Phage Min1, infecting the genus Microbacterium, was detected in all farms, with a prevalence of 0.9% to 29.09%.

Sources:

  • NewsRx. Kyungpook National University Researchers Reveal New Findings on DNA Viruses (Characterization of DNA Viruses in Hindgut Contents of * * Protaetia brevitarsis* * Larvae). Life Science Weekly. September 9, 2025; p 1843.
  • Insects. Characterization of DNA Viruses in Hindgut Contents of * * Protaetia brevitarsis* * Larvae. 2025, 16(8):800. (MDPI AG - http://www.mdpi.com/journal/insects/).

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