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ARS Home » Midwest Area » Urbana, Illinois » Soybean/maize Germplasm, Pathology, and Genetics Research » Research » Research Project #434120

Research Project: Soybean Entomology in the North Central Region: Management and Outreach for New and Existing Pests

Location: Soybean/maize Germplasm, Pathology, and Genetics Research

Project Number: 5012-22000-022-23-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Oct 1, 2017
End Date: Dec 31, 2018

Objective:
Monitor the soybean aphid, and selected other pests and pathogens in the Midwest through the Soybean Aphid Suction Trap Network; and disseminate this information to the project cooperators and the agricultural research community. Determine the inheritance of virulence of selected aphid biotype crosses, determine association of virulence and selected molecular markers, and provide a stock center or a reserve for the various biotypes.

Approach:
Establish suction traps in a number of Midwestern locations at cooperator sites with return mailers for the samples to be sent back to the Urbana location. The samples will be processed. The aphids will be counted and identified to species. Other pests and pathogens will be quantified if deemed necessary. The information will be disseminated to others in the network and regionally to the agricultural research community. Produce F1-hybrids and F2-derived soybean aphid populations that segregate for virulence on selected soybean resistance genes (Rag). Then phenotype F2-derived clones for virulence on soybean with known resistance genes. Identify molecular markers among soybean aphid parental biotype isolates, and analyze the associations between virulence phenotypes of F1-hybrid and F2-derived clones and molecular markers. Maintain stocks of the known genotypes for distribution to cooperators.