2009
Identifying factors that influence genetic diversity in endemic Phytophthora sojae populations
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Alison Robertson, Iowa State University
Co-Principal Investigators:
Anne Dorrance, The Ohio State University
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Phytophthora root and stem rot (PRR), caused by Phytophthora sojae, is an economically important disease of soybean in the United States. In 2005, yield suppression by PRR in the US was estimated to cost over $250 million. Currently, the disease is primarily managed by planting varieties with genes that confer resistance (Rps genes) to the pathogen. Fourteen Rps genes have been identified, and three (Rps1c, 1k and 3a) are currently deployed in commercial varieties. The problem is P. sojae has the ability to develop new races that overcome these Rps genes. More than 70 races of P. sojae have been identified, and this number continues to increase. Thus, when a Rps gene is deployed, it...

Unique Keywords:
#soybean diseases
Information And Results
Project Deliverables

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.