2015
Identifying high-yield genotypes in the USDA soybean germplasm collection
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Contributor/Checkoff:
North Central Soybean Research Program
Category:
Sustainable Production
Keywords:
GeneticsGenomics
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
George Graef, University of Nebraska
Co-Principal Investigators:
Randall Nelson, University of Illinois at Urbana-Champaign
Kent M Eskridge, University of Nebraska at Lincoln
+1 More
Project Code:
Contributing Organization (Checkoff):
North Central Soybean Research Program
(n/a)
Institution Funded:
University of Minnesota
(n/a)
Brief Project Summary:

The USDA Soybean Germplasm Collection contains over 21,000 accessions including wild relatives, landraces, and cultivars from around the world. The goal of this project is to identify and use soybean germplasm with positive alleles for yield and other traits that can be bred into commercial cultivars to effectively increase productivity and expand the genetic base of US soybean varieties. A major challenge in plant breeding is how best to sample a large germplasm collection where phenotypic information for traits such as yield is absent or very limited.

The majority of unimproved accessions come from China, where soybean was domesticated, as well as Japan and Korea, other areas of...

Unique Keywords:
#breeding & genetics, #soybean germplasm screening
Information And Results
Project Deliverables

This is our first year of multi-location yield testing, and we are just harvesting plots at this time. For this year we will meet the first deliverable listed in the proposal, namely, High-quality, multi-environment yield and other agronomic performance data for 500 accessions in the USDA Soybean Germplasm Collection. Post-harvest data include seed weights and seed composition data from every plot at all locations. At the end of this project, final data will be entered into the GRIN database and will be available to all users. High-yielding accessions with unique yield genes will be used in public and private breeding programs to increase yield.

Final Project Results

Update:
(see attached pdf)
We successfully completed the first year of multi-environment evaluation on 500 PI accessions from the USDA soybean germplasm collection. Because of timing of the season and FY, we do not have data summarized and analyzed for this report. During the next period we will conduct data analyses and start work on model development and predictions based on the first year of data. These will not be the final models and predictions- that comes after the 2016 data are complete – but we can use Year 1 results to start the process and give us some preliminary information. The amount of yield and agronomic data we have after Year 1 exceeds the quality of any yield plot data currently available on this number of accessions in the collection. Through this coordinated effort, we have 14 replications worth of data from seven environments in five major soybean producing states in the north central region. That is valuable!

View uploaded report PDF file


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.