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Updated: May 30, 2025
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Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes
Published on: July 27, 2018
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ICTV Virus Taxonomy Profile: Bromoviridae 2025.
Jeremy R Thompson1, Tomás Canto2, John P Carr3
1Plant Health and Environment Laboratory, 231 Morrin Road, St Johns, Auckland, 1072, New Zealand.
The Journal of General Virology
|January 31, 2025
Summary
The Bromoviridae family comprises plant viruses with segmented RNA genomes, causing significant crop diseases. Recent advances in sequencing have expanded the diversity of the Ilarvirus genus within this family.
Area of Science:
- Plant virology
- Molecular biology
- Taxonomy
Background:
- Bromoviridae is a plant virus family with tripartite, positive-sense RNA genomes.
- Virions exhibit variable morphology and transmission methods, including mechanical, pollen, and insect vectors.
- Bromoviridae members cause major epidemics in diverse crops like tomatoes, cucurbits, bananas, and fruit trees.
Purpose of the Study:
- To summarize the International Committee on Taxonomy of Viruses (ICTV) report on the Bromoviridae family.
- To highlight the impact of metagenomic sequencing on viral taxonomy.
- To document the increasing diversity within the Ilarvirus genus.
Main Methods:
- Review and summarization of the ICTV report on Bromoviridae.
- Analysis of data from metagenomic high-throughput sequencing.
- Classification and taxonomic evaluation of viral species.
Main Results:
- The Bromoviridae family includes viruses with segmented RNA genomes affecting crucial crops.
- Metagenomic sequencing has led to a significant increase in identified species within the Ilarvirus genus.
- The report provides a comprehensive overview of the family's taxonomy and characteristics.
Conclusions:
- The Bromoviridae family represents a significant threat to global agriculture.
- Advances in sequencing technologies are crucial for understanding viral diversity.
- Accurate viral taxonomy, as presented by the ICTV, is essential for disease management and research.
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