2015
Mapping and introgression of RpsN for resistance of Phytophthora root rot into elite soybean lines
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Contributor/Checkoff:
Iowa Soybean Association
Category:
Sustainable Production
Keywords:
GeneticsGenomics
Parent Project:
Mapping and introgression of RpsN for resistance of Phytophthora root rot into elite soybean lines
Lead Principal Investigator:
Alison Robertson, Iowa State University
Co-Principal Investigators:
Madan Bhattacharyya, Iowa State University
Silvia Cianzio, Iowa State University
+1 More
Project Code:
Contributing Organization (Checkoff):
Iowa Soybean Association
(n/a)
Institution Funded:
Iowa State University
(n/a)
Brief Project Summary:

Phytophthora stem and root rot can result in severe yield losses, especially during wet growing seasons. The most cost-effective way of managing it is through host resistance that incorporates major gene resistance and partial resistance. This research will lead to the development of elite soybean lines with major single gene resistance to P. sojae as well as high partial resistance, thus improving the currently available disease management options for Phytophthora root rot. The lines introgressed with RpsN will provide additional protection for yields there by increasing the profitability for the farmers.

Key Benefactors:
farmers, agronomists, Extension agents, soybean breeders, seed companies

Information And Results
Project Deliverables

1. Identification of useful molecular markers for marker assisted selection (MAS) for the novel RpsN gene –near completion.
2. Isolation of the candidate RpsN genes – expected to be accomplished in year 3 (FY2014- FY2015).
3. Transgenic lines carrying candidate RpsN genes will be developed – expected in the 3 year (FY 2014- FY 2015).
4. Progenies of the transgenic soybean lines will be analyzed to identify RpsN – expected in the 3rd year (FY2014-FY 2015).
5. Germplasm lines carrying the novel Rps gene which can be used to develop high yielding, P. sojae resistant experimental lines.
6. Data will be shared directly with soybean growers at field days and grower meetings organized and conducted by State University Extension and by the agribusiness industry.
7. Data will be shared with peers at scientific meeting.

Final Project Results

Update:
See attached final report

View uploaded report Word file

Manuscripts in progress
Matthiesen, R., Abeysekara, N., Maroof, S. and Robertson A.E. XXXX. Combining isolates to screen for novel sources of resistance to Phytophthora sojae in soybean. Plant Disease
Abeysekara, N., Bhattacharrya, M., Cianzio, S., Dorrance, A.E. and Robertson, A.E. XXXX. Identification of novel sources of resistance (Rps/QTL) in soybean with an inoculum mixture of three Phytophthora sojae isolates that vary in pathotype. Crop Science

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.