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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
Subviral agents associated with plant single-stranded DNA viruses
1Plant Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Jhang Road, Faisalabad, Pakistan.
Virology
|December 21, 2005
Summary
Begomoviruses cause significant crop diseases globally, often involving DNA-beta satellites with monopartite viruses. Understanding these begomovirus/satellite complexes is crucial for agricultural disease control and plant science.
Area of Science:
- Plant Virology
- Molecular Plant Pathology
- Agricultural Science
Background:
- Begomoviruses (family Geminiviridae) are major plant pathogens causing significant agricultural losses worldwide.
- Monopartite begomoviruses, particularly in the Old World, are increasingly associated with diseases, often in conjunction with essential DNA-beta satellite components.
- These begomovirus/satellite complexes infect a wide range of plants, including crops, weeds, and ornamentals, and can be further complicated by non-essential nanovirus-derived DNA-1 components.
Purpose of the Study:
- To highlight the growing importance and diversity of monopartite begomovirus/DNA-beta satellite disease complexes.
- To emphasize the need for a comprehensive understanding of the distribution and diversity of these complexes.
- To explore the potential for using knowledge of host responses for disease control and insights into plant development.
Main Methods:
- Review and synthesis of existing literature on begomovirus and satellite component interactions.
- Analysis of disease complexes involving monopartite begomoviruses and DNA-beta satellites.
- Discussion of implications for plant pathology and agricultural practices.
Main Results:
- Monopartite begomoviruses, especially with DNA-beta satellites, are responsible for a growing number of economically important plant diseases.
- DNA-beta satellites exhibit flexible replication, allowing association with multiple begomoviruses, promoting diversification.
- Non-essential DNA-1 components from nanoviruses are frequently associated, adding complexity to these disease complexes.
Conclusions:
- There is an urgent need to characterize the diversity and geographical distribution of begomovirus/satellite disease complexes.
- Understanding the mechanisms of host-pathogen interaction in these complexes can inform strategies for crop protection.
- Further research into novel satellites associated with begomovirus diseases is warranted.
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