2014
Molecular Mapping of Soybean Aphid Resistance in Elite Germplasm and Pyramiding of Multiple Resistance Genes in Early Maturing Soybeans (1420-532-5606)
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Contributor/Checkoff:
United Soybean Board
Category:
Sustainable Production
Keywords:
(none assigned)
Parent Project:
Molecular Mapping of Soybean Aphid Resistance in Elite Germplasm and Pyramiding of Multiple Resistance Genes in Early Maturing Soybeans (1320-532-5606)
Lead Principal Investigator:
Jose L Gonzalez, South Dakota State University
Co-Principal Investigators:
Louis Hesler, South Dakota State University
James Orf, University of Minnesota
+1 More
Project Code:
1420-532-5606
Contributing Organization (Checkoff):
United Soybean Board
(n/a)
Institution Funded:
South Dakota State University
(n/a)
Brief Project Summary:

Unique Keywords:
#breeding & genetics, #soybean aphid - genetic resistance, #soybean gene mapping, #soybean genetic markers
Information And Results
Project Deliverables

New sources of SA resistance identified in early maturing groups (MG 00-II), which will be used in soybean breeding and research.

Mapping information and DNA markers closely associated with or tightly linked to aphid resistance gene(s), which will facilitate variety development and accelerate breeding progress and increase selection efficiency.

Early maturing soybean lines/materials (MG 00-II) developed with multiple genes/QTLs integrated and resistance enhanced against soybean aphids, which will be used as parents by soybean breeders and may be also grown by soybean producers to protect soybean yield.

Final Project Results

• Achieving the objectives
- New sources of soybean aphid resistance were identified
- SNP markers associated with these sources of resistance were determined
- Crosses among the sources of resistance with adapted soybean germplasm lines were completed
- Genotyping of F2 lines from a cross to combine multiple sources of aphid resistance was completed
- Preliminary analysis of mapping showed aphid resistance QTL on two chromosomes closely related to previously described genes, and a third significant QTL previously undescribed.

• Not achieving the objectives
- The PI for this project left SDSU and the project was eventually picked up by another PI
- Delays due to this change have resulted in significant delays in the project
- This project was not renewed for FY15

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.