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ARS Home » Midwest Area » Madison, Wisconsin » Vegetable Crops Research » Research » Publications at this Location » Publication #339446
Title: Identification of factors involved in foliar resistance to bacteria in potato

Author
item Halterman, Dennis
item BASNAL, PRAMITA - University Of Wisconsin

Submitted to: American Phytopathological Society
Publication Type: Abstract Only
Publication Acceptance Date: 3/13/2017
Publication Date: 8/8/2017
Citation: Halterman, D.A., Basnal, P. 2017. Identification of factors involved in foliar resistance to bacteria in potato [abstract]. American Phytopathological Society. Paper No. 249-P.

Interpretive Summary:

Technical Abstract: Foliar bacterial pathogens are a constant problem of many Solanaceous crops including tomato, pepper, and eggplant. However, cultivated potato has benefitted from low infection rates from most pathogenic Pseudomonas and Xanthomonas species. The purpose of this project is to understand the mechanisms involved in limiting infection of bacteria in the foliage of potato. Using P. syringae pv. tomato DC3000, we have screened many popular potato cultivars and found them all to be immune. Using DC3000, we expanded our screen to over 100 wild species accessions of potato. The majority of these species were susceptible or tolerant, suggesting that resistance to foliar pathogens may have been selected during cultivation of potato as a food crop. A population between wild and cultivated potato was developed and is segregating for immunity. We will use this population for SNP marker analysis in order to identify loci involved in immunity to foliar bacterial pathogens in potato.