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                    U.S. DEPARTMENT OF AGRICULTURE
 Corn, Soybean and Wheat Quality Research: Wooster, OH
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ARS Home Midwest Area Wooster, Ohio Corn, Soybean and Wheat Quality Research Docs





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The Corn & Soybean Virus Labheadline bar /ARSUserFiles/50821000/Corn and Soybean Virus Lab/Virology group circa 1970.jpg The virus research team was originally formed in the 1960s in response to dual epidemics of maize chlorotic dwarf virus (MCDV) and maize dwarf mosaic virus (MDMV) that devastated Ohio's cornfields. The group originally consisted of a plant pathologist, a virologist, an entomologist, and a maize breeder. The ARS group collaborated with Ohio State University faculty in Entomology, Plant Pathology, and Crop Science to identify the two viruses and their vectors. Since then, the group has studied viruses that limit maize production across the U.S. and worldwide. The lab is an internationally recognized center of expertise in maize virus identification, characterization and epidemiology, and functions as an important early warning system for exotic viruses and vector-transmitted pathogens that threaten corn production in the U.S. Over the past 15 years, the group’s research has broadened to include the control of emerging virus diseases and insect pests that threaten soybean production. **Our Mission** is to understand viruses and insect-transmitted pathogens that infect maize and soybean, their transmission and biology, and develop management strategies through host resistance and other technologies. **Past accomplishments include:** Characterized "new" and emerging corn viruses and their vectors.
Developed antisera for identification of 17 corn-infecting viruses. Developed mechanical and insect transmission protocols to evaluate virus resistance in corn.
Identified and released virus resistant germplasm, and mapped virus resistance genes for more than 7 viruses, including maize chlorotic mottle virus (MCMV), maize dwarf mosaic virus (MDMV), sugarcane mosaic virus (SCMV), and wheat streak mosaic virus (WSMV) Published more than 250 research and review articles. **Recent accomplishments include:** Described the symptomology and transmission of the emerging maize yellow mosaic virus (MaYMV)
Identified and mapped resistance genes for maize chlorotic mottle virus (MCMV)
Released a maize synthetic population with elite resistance to maize lethal necrosis (MLN) disease that will aid breeders in developing resistant varieties
Characterized the feeding behavior of the invasive soybean aphid in response to two soybean-infecting viruses, soybean mosaic virus (SMV) and Bean pod mottle virus (BPMV) **Current capabilities:** Rapid identification and characterization of viral pathogens of corn and soybean
Development of viral genome sequence resources and diagnostic tools for newly discovered viruses
Identification of virus resistant germplasm and mapping of virus specific resistance genes in corn and soybean
Investigation of virus interactions with plant hosts and insect vectors **Current objectives** Identify and characterize endemic and emergent viruses in corn and soybean, and develop sequence and detection resources. Develop genetic markers and germplasm associated with corn virus resistance genes, and transfer information for practical management solutions. Fine map, clone, and characterize virus resistance genes, facilitating the investigation of host-pathogen interactions.


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