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United States Department of Agriculture

Agricultural Research Service

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Research Project: Eqtl Analysis in Soybean Populations to Elucidate Genetic Architecture of Host Response to Infection by Sclerotinia Sclerotiorum

Location: Sunflower Research

Project Number: 5442-21220-028-21
Project Type: Specific Cooperative Agreement

Start Date: Jul 01, 2013
End Date: Sep 30, 2014

Objective:
This research is being conducted to increase the level of resistance to Sclerotinla sclerotlorum in soybean cultivara and to develop and evaluate improved disease control and resistance options for soybean producers.

Approach:
This plan of work makes use of DNA markers and marker-assisted selection to identify and manipulate chromosomal regions that are associated with smaller lesion size when soybeans are infected with S. sclerotiorum We are combining multiple QTL identified by the DNA marker genotypes into individual homozygous F5-derived soybean lines to increase overall resistance to the fungus. We also are evaluating different transgenic approaches that may either confer resistance to the fungus (via a lytic peptide expressed in the transgenic plants that destroys the fungus) or may allow the use of effective chemical control measures against Sclerotinia as well as other fungal and bacterial pathogens and soybean cyst nematode.

Last Modified: 9/10/2014
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