2022
Combating soybean root rot with a new virus vector
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Contributor/Checkoff:
Ohio Soybean Council
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Feng Qu, The Ohio State University
Co-Principal Investigators:
Project Code:
22-R-03
Contributing Organization (Checkoff):
Ohio Soybean Council
$50,000
Institution Funded:
The Ohio State University
$50,000
Brief Project Summary:
Root and seedling rot caused by P. sojae is an important soybean disease in Ohio. Various viruses were modified into tools to examine genes that confer resistance to P. sojae (Rps genes). Previous research developed a superior VIGS vector, designated FZ. This project uses FZ to accomplish four goals: interrogating candidates of Rps1c, Rps3a, and Rps8 to unveil their true nature, expressing P. sojae effectors to simplify screening of new Rps genes, augmenting P. sojae resistance by enhancing flavonoid production and testing a faster and simpler method for soybean delivery of FZ constructs.
Key Beneficiaries:
#agronomists, #extension agents, #farmers, #seed companies, #soybean breeders
Unique Keywords:
#soybean breeding, #soybean diseases
Information And Results
Project Summary

Root and seedling rot caused by P. sojae is the most important soybean disease in Ohio. Viruses have been by us as tools to examine Rps genes that confer resistance to P. sojae for 10 years. Earlier virus-induced gene silencing (VIGS) vectors have serious shortcomings that limited their wider use. Thanks to the unwavering support from OSC, a superior vector based on cowpea severe mosaic virus, designated FZvec, has been developed. Here we propose to use FZvec to accomplish three goals. First, we will interrogate candidates of two Rps genes, Rps1c and Rps1k, to unveil their true nature. Second, we will attempt to express the P. sojae effectors avrRps1c and avrRps1k to simplify screening of Rps genes. Finally, we will augment P. sojae resistance by enhancing flavonoid production. This project fits OSC mission of investing soybean checkoff funds to maximize the value of soybeans and increase profit opportunities for Ohio farmers, and addresses OSC Strategic Goal of Driving Innovation.

Project Objectives

Drive Innovation

Project Deliverables

Progress Of Work

Final Project Results

Benefit To Soybean Farmers

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.