2013
Roles of Soybean Aphid Genetics and Endosymbionts in Enabling Soybean Aphid Biotypes to Overcome Resistance Genes (Year 2 of 2503)
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Contributor/Checkoff:
United Soybean Board
Category:
Sustainable Production
Keywords:
(none assigned)
Parent Project:
Roles of Soybean Aphid Genetics and Endosymbionts in Enabling Soybean Aphid Biotypes to Overcome Resistance Genes (Year 1 of 2503)
Lead Principal Investigator:
Glen Hartman, USDA/ARS-University of Illinois
Co-Principal Investigators:
Project Code:
1320-532-5629
Contributing Organization (Checkoff):
United Soybean Board
(n/a)
Institution Funded:
USDA/ARS-University of Illinois
(n/a)
Brief Project Summary:

Unique Keywords:
#insects and pests, #soybean aphid resistance
Information And Results
Project Deliverables

The soybean aphid is one of the greatest recurring constraints to U.S. soybean production. An economic analysis of the impact of this pest on soybean production predicted that without effective plant resistance, a range of $3.6-4.9 billion could be lost annually. Our research identified and characterized the first known resistance to the aphid in soybean germplasm. We also mapped the first resistance genes (Rag1 and Rag2). The first commercial soybean cultivars with the Rag1 were grown on limited acreage in 2008, and are now widely grown. The United Soybean Board supported this research. Additional research on the soybean aphid is needed to determine the inheritance of virulence and to determine the effect of biotype-specific endosymbionts on virulence. We plan to improve average U.S. soybean yields by increasing the level of plant resistance to environmental stress, targeted pests and diseases in elite germplasm.

Final Project Results

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.