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ARS Home » Pacific West Area » Aberdeen, Idaho » Small Grains and Potato Germplasm Research » Research » Publications at this Location » Publication #351958

Research Project: Potato Genetic Improvement for Enhanced Tuber Quality and Greater Productivity and Sustainability in Western U.S. Production

Location: Small Grains and Potato Germplasm Research

Title: Breeding and development of Globodera-resistant potato varieties with long tuber shape and russet skin for production in the western United States

Author
item Novy, Richard - Rich
item Whitworth, Jonathan
item Kuhl, Joe - University Of Idaho
item Dandurand, Louise-marie - University Of Idaho
item Zasada, Inga
item De Jong, Walter - Cornell University - New York
item Wang, Xiaohong

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 2/21/2018
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Two species of potato cyst nematode (Globodera rostochiensis, and G. pallida,) have been identified in the U.S. and are under quarantine regulations, with a third newly identified species (G. ellingtonae) not categorized as a quarantined pest. Management of G. rostochiensis in the state of New York includes the use of resistant potato varieties, but resistance to G. pallida is not present in the primary varieties grown in the state of Idaho where G. pallida was identified in 2006. The primary market class of potato grown in Idaho and the western U.S. is characterized by varieties having long tuber shape and russet skin. Potato varieties commercially available having G. pallida resistance typically have round tubers and white or yellow skin making them unsuitable for producers in the western U.S. Hybridizations have been conducted between Globodera-resistant breeding clones and varieties to russet-skinned germplasm. Progeny from an Eden x Western Russet family display Globodera resistance (derived from Eden) and the desired long tuber shape and russet skin (derived from Western Russet). Sources of Globodera resistance being utilized in our program, the use of marker-assisted selection, and our progress in developing russet-skinned germplasm having long tuber shape with resistance to the three Globodera species is described.