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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research » Research » Research Project #435362

Research Project: Immunity to Potato Cyst Nematodes

Location: Horticultural Crops Research

Project Number: 2072-22000-043-29-I
Project Type: Interagency Reimbursable Agreement

Start Date: Jul 1, 2018
End Date: Sep 30, 2019

Objective:
1. Development of russet and processing types of potato that possess strong resistance/immunity to potato cyst nemotodes (PCN). 2. Exploration of wild potato species for broad-spectrum resistance to Globodera.

Approach:
New populations of potato representing unique individuals with the potential to be new varieties having PCN resistance will be generated following directed hybridizations in the greenhouse between PCN-resistant breeding clones and varieties (round, non-russet skinned) and long, russet-skinned breeding clones and varieties. Potato seedlings will be germinated in the greenhouse from the true potato seed generated following proposed hybridizations for the production of seedling tubers. Each seedling tuber represents a unique genotype (individual) that has the potential for release as a potato variety. Wild potato accessions showing an HR phenotype in the infiltrated leaves will be further evaluated for nematode resistance, which will be conducted in the labs of USDA-ARS in Ithaca, NY, Univeristy of Idaho, and USDA-ARS in Corvallis, OR, for G. rostochiensis, G. pallida, and G. ellingtonae, respectively, using established protocols.