2012
Roles of Soybean Aphid Genetics and Endosymbionts in Enabling Soybean Aphid Biotypes to Overcome Resistance Genes (Year 1 of 2503)
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Contributor/Checkoff:
United Soybean Board
Category:
Sustainable Production
Keywords:
(none assigned)
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Glen Hartman, USDA/ARS-University of Illinois
Co-Principal Investigators:
Project Code:
2503
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
Final Project Results

Achieving the objectives
• Several antibiotics were evaluated before proper treatments were devised to create endosymbiont-free aphid clones for testing
• Evaluation of the importance of endosymbionts to aphid virulence, or ability to overcome resistance showed that endosymbionts were not involved

Not achieving the objectives
• Some difficulties were encountered with maintaining live soybean aphid clone colonies. Throughout the study techniques at rearing and maintaining these clones were improved.
• Not all possible aphid biotype crosses have been made. So far those tested show a strong maternal influence for virulence, beyond that expected genetically.

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.