2014
High-Impact Public Research for Modified Carbohydrate Composition in U.S. Soybeans (Year 1 of 1420-532-5639)
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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:
Katy M Rainey, Purdue University
Co-Principal Investigators:
Walter Fehr, Iowa State University
Asheesh Singh, Iowa State University
John Brake, North Carolina State University
James Orf, University of Minnesota
Pengyin Chen, University of Missouri
Henry Nguyen, University of Missouri
Grover Shannon, University of Missouri
Kristin Bilyeu, USDA-ARS
Karen Hudson, USDA-ARS-Purdue University
+8 More
Project Code:
1420-532-5639
Contributing Organization (Checkoff):
United Soybean Board
(n/a)
Institution Funded:
Purdue University
(n/a)
Brief Project Summary:

Unique Keywords:
#breeding & genetics
Information And Results
Project Deliverables

Objective 1 deliverables.
Soybean varieties in MG II - IV-S with low RFO and high sucrose from the RS2-W331 allele with yield parity to commercial varieties, both conventional and herbicide tolerant.
Chen: One conventional variety with high sucrose and low stachyose in 2015. One conventional variety with high sucrose in 2016. One RR1 variety with high sucrose and low stachyose in 2017. One RR2Y variety with high sucrose in 2018.
Fehr/Singh: All IA State varieties will include modified carbohydrate composition combined with other compositional value traits, so please refer to Objective 2 deliverables below.
Rainey: Varieties targeted are RS2-W331 in MG II-IV, conventional and RR1. 2015 initiate agronomic testing of BC5 lines, select varieties for release in 2016 or 2017.
Shannon: 2015 release one RS2-W331 MG III and one MG IV conventional soybean germplasm line with RS2-W331. 2016 release one RS2-W331 RR1 line in MG III and IV.

- Soybean germplasm with diverse compositional profiles specifically for defining meal value using poultry feeding studies.
• -New genes, alleles, and QTL modifying carbohydrate composition of soybean seeds identified.
• -Stability of carbohydrate composition defined.
• -A panel of high sucrose soybeans varieties defined and sucrose QTL mapped.
• -Impacts on seed quality and seedling vigor defined.

Objective 2 deliverables.
Soybean varieties in MG II - V with low RFO and high sucrose from the RS2-W331 allele, and high oleic acid composition.
Fehr/Singh: Producing breeder seed of two high protein conventional cultivars with Rs2 and maybe Rs3 in 2013. Producing breeder seed of three conventional cultivars with 1% linolenic acid, normal protein content, and Rs2 (maybe Rs3) the summer of 2014. Seed of the high oleic version of one line and the RR1 version of another line will be produced the summer of 2015.
Rainey: Varieties targeted are RS2-W331 in MG II-IV, high oleic, and conventional. 2015 initiate agronomic testing of BC5 lines, select varieties for release in 2016 or 2017. 2016 initiate agronomic testing of BC5 lines, select varieties for release in 2017 or 2018.
Shannon: 2016 release one group III or IV RS2-W331 conventional line with low trypsin inhibitor. 2017 release one RS2-W331 RR1 III or IV RR1 line with low trypsin inhibitor.

- Soybean germplasm with low RFOs and/or high sucrose, and higher meal protein, low trypsin inhibitor, or both.

Objective 3 deliverables.
A ME value index will be developed for each SBM relative to its control. This ME index will encompass both animal performance and digestibility data. Soybean breeders can then use this value index to develop soybean varieties.

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.