Project Details:

Improved Resistance to Soybean Cyst Nematode via Rhg1 and Other Soybean Loci (Year 2 of 1420-532-5643)

Parent Project: Improved Resistance to Soybean Cyst Nematode via Rhg1 and Other Soybean Loci (Year 1 of 1420-532-5643)
Checkoff Organization:United Soybean Board
Categories:Nematodes, Breeding & genetics, Environmental stress
Organization Project Code:1420-532-5643
Project Year:2015
Lead Principal Investigator:Andrew Bent (University of Wisconsin)
Co-Principal Investigators:
Brian Diers (University of Illinois at Urbana-Champaign)
Matthew Hudson (University of Illinois at Urbana-Champaign)
Keywords: soybean cyst nematode, SCN, SCN resistance, Rhg1 resistance

Contributing Organizations

Funding Institutions

Information and Results

Comprehensive project details are posted online for three-years only, and final reports indefinitely. For more information on this project please contact this state soybean organization.

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Final Project Results

Updated November 8, 2017:
• Attempts to identify a soybean line containing Rhg1 resistance from both Peking and PI88788 types is ongoing, but has not yet been identified.
• Analysis of F2 plants derived from crossing parents with different rhg1 copy number and type as well as presence and absence of Rhg4, confirms and extends our understanding of these genes. It appears that for Hg2.5.7 populations, Rhg1 derived from Peking provides more resistance than does Rhg1 derived from Fayette, Rhg4 does not impact resistance in plants with Fayette + Williams Rhg1 but increased copi
• Work to identify proteins in soybean that physically interact with Glyma18g02610 using metabolite profiling is ongoing. Subcellular localization of Glyma18g02610 suggests it is primarily in the cytosol, but may also be associated with the plasma membrane.

The knowledge that the number of copies of the gene Rhg1 may have bearing on the magnitude of SCN resistance within a variety will make a difference in the future of how varieties are bred for improved SCN resistance.

Project Years