ICTV Virus Taxonomy Profile: Bromoviridae.

Area of Science:

• Plant Virology
• Molecular Biology
• Crop Science

Background:

• Bromoviridae are plant viruses with segmented, positive-sense, single-stranded RNA genomes.
• Virions exhibit variable morphology and are transmitted mechanically, via pollen, or insect vectors.
• These viruses cause major disease epidemics in economically important 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 provide an overview of the taxonomy, characteristics, and impact of Bromoviridae.
• To consolidate information on Bromoviridae for researchers and agricultural professionals.

Main Methods:

• Review and synthesis of the ICTV Report on Bromoviridae.
• Analysis of genomic structure, virion morphology, and transmission methods.
• Compilation of information on host range and associated crop diseases.

Main Results:

• Bromoviridae genomes are tri-segmented, approximately 8kb in total, and packaged in separate virions.
• Virions can contain various RNA types, including subgenomic, defective, or satellite RNAs.
• The family includes viruses responsible for widespread and damaging plant diseases globally.

Conclusions:

• Bromoviridae represent a significant viral family impacting global agriculture.
• Understanding their taxonomy and biology is crucial for disease management.
• The ICTV report provides a comprehensive resource on this important group of plant pathogens.