2013
Tagging Rag1 Virulence in the Soybean Aphid with DNA Markers (#0243) and Addendum Project (#1243): Genetics of Resistance …(Year 2 of 2243)
Home
Contributor/Checkoff:
United Soybean Board
Category:
Sustainable Production
Keywords:
(none assigned)
Parent Project:
Tagging Rag1 Virulence in the Soybean Aphid with DNA Markers (Year 1 of 0243)
Lead Principal Investigator:
Curtis Hill, University of Illinois-Carbondale
Co-Principal Investigators:
Project Code:
1320-532-5625
Contributing Organization (Checkoff):
United Soybean Board
(n/a)
Institution Funded:
University of Illinois at Urbana-Champaign
(n/a)
Brief Project Summary:

Unique Keywords:
#insects and pests, #soybean gene expression, #soybean insect - genetic resistance
Information And Results
Final Project Results

• A 2,573 SNP array for soybean aphid genes was developed that will allow mapping of soybean aphid biotype distribution
• Reciprocal crosses were made between aphid biotype 1 and 2 to determine inheritance of aphid virulence and a maternal influence was determined
• A single dominant resistance gene for aphid biotype 3 was identified in PI 587677 and two complementary genes were found in PI 594592.
No achieving the objectives
• Additional crosses were required among PIs with Rag1 and Rag2 resistance genes to determine allelism.
• More research is necessary to determine the source of virulence to Rag1 in soybean aphid due to the finding of strong maternal influence.

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.