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United States Department of Agriculture

Agricultural Research Service

Research Project: Potato Genetic Improvement for Western U.S. Production

Location: Small Grains and Potato Germplasm Research

Title: Characterization of potato breeding clones to determine mechanisms conferring observed resistance/tolerance to zebra chip disease

Authors
item Novy, Richard
item Prager, S -
item Miller, Jr, J -
item Vindeola, B -
item Trumble, J -

Submitted to: Meeting Abstract
Publication Type: Book / Chapter
Publication Acceptance Date: October 10, 2013
Publication Date: N/A

Interpretive Summary: Potato breeding clones having wild potato species in their pedigree displayed resistance to the potato psyllid, an insect responsible for the transmission of zebra chip disease. Potato psyllid resistance may contribute to a reduced incidence of zebra chip disease.

Technical Abstract: A haploid tuberosum x Solanum berthaultii hybrid clone and its progeny from backcrossing to cultivated potato were screened for resistance to adult potato psyllid, the insect vector of Candidatus Liberibacter solanacearum (syn. Ca. L. psyllaurous) which is associated with zebra chip (ZC) disease. Potato breeding clones with the potato species S. raphanifolium, S. chacoense, and S. berthaultii in their pedigree were also screened for resistance to potato psyllid. Antibiosis and antixenosis to potato psyllid was displayed among breeding clones, which may aid in reducing transmission of the bacterium responsible for ZC.

Last Modified: 10/1/2014
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