Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 498445
Title A real-time TaqMan PCR assay to discriminate between pathotype 1 (D1) and non-pathotype 1 (D1) isolates of Synchytrium endobioticum
Author(s) Bonants, P.J.M.; Gent-Pelzer, M.P.E. van; Leeuwen, Gerard C.M. van; Lee, T.A.J. van der
Source European Journal of Plant Pathology 143 (2015)3. - ISSN 0929-1873 - p. 495 - 506.
Department(s) PRI Bioint Diagnostics, Food Safety & Phytosanitary
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Detection - Identification - Pathotype 1 (D1) - Potato wart disease - TaqMan PCR

Synchytrium endobioticum is a severe pathogen of potato causing wart disease. For this obligate fungus many pathotypes exist, which are pathogenic or non-pathogenic to different cultivars of potato. To determine to which pathotype an isolate belongs, two biological assays are used on a set of different potato cultivars: the Spieckermann and the Glynne-Lemmerzahl test. A differential set of cultivars has been recommended by EPPO (European Plant Protection Organization) for these tests. Drawbacks of these tests are that it can take up to several months to score the interaction and results are difficult to score and also often not conclusive. Therefore, possibilities were investigated to look for molecular markers for pathotype specificity. An extremely low level of diversity was observed in a set of eight isolates using CRoPS™ (Complexity Reduction of Polymorphic Sequences) technology. Only 191 sequence polymorphisms were found in 14,660 contigs representing approximately 195 Kb of sequence for eight isolates. Nine sequence polymorphisms could be related to pathotype specificity. Two of these polymorphisms were transferred into a real-time TaqMan PCR assay to discriminate between pathotype specific groups. Validation of the assays was performed using multiple isolates from different countries for which the bioassay had been performed.

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