The biological attributes, genome architecture and packaging of diverse multi-component fungal viruses

Yukiyo Sato, José R. Castón, Nobuhiro Suzuki

Research output: Contribution to journalReview article

8 Citations (Scopus)

Abstract

Many fungal viruses or mycoviruses have multi-segmented, rather than single-segmented, genomes. This multi-segment nature is frequently possessed by double-stranded RNA viruses, which include members of the Chrysoviridae, Quadriviridae, Megabirnaviridae, Partitiviridae, and Reoviridae families, and unassigned groups. Their genome segments are often packaged separately with the exception of mycoreoviruses, which are multi-segmented but mono-particulate viruses. These multi-segmented fungal dsRNA viruses, as exemplified by reoviruses, have been extensively studied among structural biologists, and contributed to discoveries of novel virion structures. Multi-component systems, interactions of viruses with subviral agents such as satellite and defective RNAs as typified by the yeast killer, and the rule-breaking neo-virus lifestyle exhibited by a capsidless single-stranded RNA virus hosted in an unrelated double-stranded RNA virus are also discussed. Fungal multi-segmented viruses and multicomponent virus systems would continue to provide virologists with interesting future challenges.

Original languageEnglish
Pages (from-to)55-65
Number of pages11
JournalCurrent Opinion in Virology
Volume33
DOIs
Publication statusPublished - Dec 1 2018

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Product Packaging
Genome
Viruses
RNA Viruses
Reoviridae
Double-Stranded RNA
Satellite RNAs
Virion
Life Style
Yeasts
Fungal Viruses

ASJC Scopus subject areas

  • Virology

Cite this

The biological attributes, genome architecture and packaging of diverse multi-component fungal viruses. / Sato, Yukiyo; Castón, José R.; Suzuki, Nobuhiro.

In: Current Opinion in Virology, Vol. 33, 01.12.2018, p. 55-65.

Research output: Contribution to journalReview article

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