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United States Department of Agriculture

Agricultural Research Service

Research Project: Identifying and Characterizing Resistance from Diverse Potato Germplasm Sources to Highly Aggressive Strains of Late Blight (Msu - Douches)

Location: Vegetable Crops Research Unit

Project Number: 3655-21220-002-05
Project Type: Specific Cooperative Agreement

Start Date: Jun 14, 2010
End Date: Jun 13, 2015

Objective:
Build on previous work and study new opportunities to advance our abilities to manage late blight in commercial settings as well as breed resistant varieties. Engineer durable R-genes using TALENs technology Characterize late blight resistance of the best RB/conventionally bred progeny from previous work and continue to breed new late blight resistant combinations in elite breeding material

Approach:
A multi-disciplinary approach will be undertaken to study P. infestans, apply emerging genetic approaches, breed resistant germplasm, conduct field studies, and provide recommendations to the growers. An understanding of molecular interactions between host R gene products and pathogen effectors has provided valuable data that will allow us to identify or engineer novel R-genes that can be used in breeding programs. Characterization of the overwintering ability of novel P. infestans genotypes as mycelia on currently grown potato varieties and as oospores in field soil will provide needed biological information to production scientists for estimating epidemic risk for improved control recommendations. Cooperator will be responsible for genetic marker analysis, followed by characterization of genetically modified plants containing the putative R-gene from S. microdontum located on Chr. 4.

Last Modified: 8/22/2014
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