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| Potyviridae | |
|---|---|
| Name | Potyviridae |
| Virus group | iv |
| Familia | Potyviridae |
| Subdivisions | Various genera |
Potyviridae
Potyviridae are a large family of positive-sense single-stranded RNA plant viruses associated with major crop diseases. First described through work by researchers linked to institutions such as the United States Department of Agriculture, Rothamsted Experimental Station, Scottish Agricultural College, University of California, Davis, and CABI scientists, members affect commodities studied at places like the FAO and cited in reports by World Bank agricultural programs. Outbreaks have been documented in reports connected to International Potato Center, CIMMYT, CGIAR centers, and national agricultural services such as Agriculture and Agri-Food Canada.
The family is divided into multiple genera recognized by bodies including the International Committee on Taxonomy of Viruses, with taxonomic revisions discussed in meetings of the International Union of Microbiological Societies and papers from labs at Max Planck Society, John Innes Centre, INRAE, and CSIRO. Genera such as those typified by iconic species have been classified alongside families like Tombusviridae and Luteoviridae in comparative studies published by researchers affiliated with Cold Spring Harbor Laboratory, University of Cambridge, University of Oxford, ETH Zurich, and University of Tokyo. Systematics incorporate sequence data deposited in databases maintained by GenBank, EMBL-EBI, and DDBJ, with phylogenetic frameworks used by consortia including the BBSRC and funding from bodies like the European Research Council.
Members produce filamentous, flexuous particles visualized using techniques pioneered at Harvard University and Massachusetts Institute of Technology electron microscopy facilities and refined using cryo-EM at centers such as the Max Planck Institute for Biophysical Chemistry and Weizmann Institute of Science. The genome is a single-stranded, positive-sense RNA encoding a large polyprotein; molecular biology methods developed at institutions like Salk Institute, Riken, NIH, and Institut Pasteur have characterized proteolytic processing by viral proteases analogous to proteases studied in virology labs at NIH and Imperial College London. Genomic organization comparisons often cite techniques and standards from Cold Spring Harbor Laboratory Press manuals and sequencing platforms produced by companies such as Illumina and Oxford Nanopore Technologies.
Replication and translation strategies were elucidated by researchers trained at places like University of California, Berkeley, University of Wisconsin–Madison, Pennsylvania State University, and University of Helsinki. Studies published in journals supported by institutions such as Nature Publishing Group, Elsevier, and Springer Nature describe entry via mechanical wounding or vector-mediated inoculation, translation of the polyprotein, protease-mediated cleavage, and replication in membranous replication complexes akin to models developed for Flaviviridae and Picornaviridae by collaborative teams at Rockefeller University, Yale University, and Columbia University. Work on movement proteins and cell-to-cell trafficking references plant cell biology labs at University of Minnesota, University of Illinois Urbana-Champaign, and University of Queensland.
Hosts span major crop genera studied by programs at IRRI, CIMMYT, ICARDA, and national institutes such as NARO and ANU; important hosts include species tracked by the International Potato Center and breeders at Syngenta and Bayer. Transmission is predominantly via aphid vectors examined by entomology groups at Cornell University, Penn State Entomology, CSIRO Entomology, and INRAE. Epidemiological patterns have been modeled using frameworks from CDC outbreak response training and agricultural disease modeling efforts at LANL and Argonne National Laboratory.
Symptoms such as mosaic, streaking, stunting, and yield loss have been documented in extension literature from USDA Agricultural Research Service, DEFRA, Ministry of Agriculture, Fisheries and Food (UK), and provincial services in Ontario, Saskatchewan, and Andalusia. Diagnostic methods using ELISA and RT-PCR were standardized in collaborative workshops involving WHO-linked labs, EU Reference Laboratory networks, and diagnostic companies like Agdia. Economic impact assessments cited in reports by FAO, World Bank, OECD, and national ministries highlight losses in sectors managed by firms such as BASF and farming communities represented by organizations like the National Farmers Union.
Integrated management approaches leverage resistant cultivars bred at institutes including CIMMYT, ICAR, KWS, and Rothamsted Experimental Station and require collaboration with extension services like Cooperative Extension Service and agencies such as Agriculture and Agri-Food Canada. Cultural practices promoted by FAO guidelines, chemical control of vectors by companies such as Syngenta and Bayer CropScience, and biotechnological approaches developed at Monsanto-linked labs and university spinouts are part of integrated pest management programs advocated by IFOAM and regional regulatory bodies including European Commission directorates for health and food safety.
Phylogenetic analyses published by groups at University of California, Davis, University of Edinburgh, ETH Zurich, University of Wageningen, and INRAE reveal extensive diversity shaped by recombination and selection, discussed in symposia organized by societies like the American Phytopathological Society, International Society for Plant Pathology, and Royal Society. Comparative evolution studies reference methods and datasets curated by GenBank, UniProt, PDB, and bioinformatics resources at EMBL-EBI, with computational work performed on infrastructures such as XSEDE and cloud platforms provided by Amazon Web Services.
Category:Virus families