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ICTV Virus Taxonomy Profile: Partitiviridae.

Eeva J Vainio1, Sotaro Chiba2, Said A Ghabrial3

  • 1Natural Resources Institute Finland (Luke), Helsinki 00790, Finland.

The Journal of General Virology
|December 8, 2017
PubMed
Summary

Partitiviridae are small, non-enveloped viruses with segmented dsRNA genomes. This summary outlines their taxonomy, hosts, and intracellular transmission, based on the ICTV report.

Keywords:
AlphapartitivirusBetapartitivirusCryspovirusDeltapartitivirusGammapartitivirusICTVPartitiviridaetaxonomy

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Area of Science:

  • Virology
  • Molecular Biology
  • Taxonomy

Background:

  • Partitiviridae are small, isometric, non-enveloped viruses.
  • They possess bisegmented double-stranded (ds) RNA genomes (3-4.8 kbp), with each segment individually encapsidated.

Purpose of the Study:

  • To summarize the International Committee on Taxonomy of Viruses (ICTV) report on Partitiviridae taxonomy.
  • To provide an overview of the classification, hosts, and transmission of Partitiviridae.

Main Methods:

  • Review and summarization of the official ICTV report on the Partitiviridae family.
  • Analysis of taxonomic classifications, host ranges, and transmission mechanisms.

Main Results:

  • The Partitiviridae family comprises five genera: Alphapartitivirus, Betapartitivirus, Gammapartitivirus, Deltapartitivirus, and Cryspovirus.
  • Each genus has characteristic hosts: plants/fungi (Alpha, Beta), fungi (Gamma), plants (Delta), and protozoa (Cryspo).
  • Transmission is intracellular via seeds, oocysts, or fungal processes; no natural vectors are known.

Conclusions:

  • The ICTV report provides a standardized classification for the Partitiviridae family.
  • Understanding Partitiviridae taxonomy is crucial for research in plant, fungal, and protozoan virology.