Rare Pyrenophora teres hybridization events revealed by development of sequence-specific PCR markers
Article
Article Title | Rare Pyrenophora teres hybridization events revealed by development of sequence-specific PCR markers |
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ERA Journal ID | 2639 |
Article Category | Article |
Authors | Poudel, Barsha (Author), Ellwood, Simon R. (Author), Testa, Alison C. (Author), McLean, Mark (Author), Sutherland, Mark (Author) and Martin, Anke (Author) |
Journal Title | Phytopathology: International Journal of the American Phytopathological Society |
Journal Citation | 107 (7), pp. 878-884 |
Number of Pages | 7 |
Year | 2017 |
Publisher | American Phytopathological Society |
Place of Publication | United States |
ISSN | 0031-949X |
1943-7684 | |
Digital Object Identifier (DOI) | https://doi.org/10.1094/PHYTO-11-16-0396-R |
Web Address (URL) | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-11-16-0396-R |
Abstract | Pyrenophora teres f. teres and P. teres f. maculata cause net form and spot form, respectively, of net blotch on barley (Hordeum vulgare). The two forms reproduce sexually, producing hybrids with genetic and pathogenic variability. Phenotypic identification of hybrids is challenging because lesions induced by hybrids on host plants resemble lesions induced by either P. teres f. teres or P. teres f. maculata. In this study, 12 sequence-specific polymerase chain reaction markers were developed based on expressed regions spread across the genome. The primers were validated using 210 P. teres isolates, 2 putative field hybrids (WAC10721 and SNB172), 50 laboratory-produced hybrids, and 7 isolates collected from barley grass (H. leporinum). The sequence-specific markers confirmed isolate WAC10721 as a hybrid. Only four P. teres f. teres markers amplified on DNA of barley grass isolates. Amplified fragment length polymorphism markers suggested that P. teres barley grass isolates are genetically different from P. teres barley isolates and that the second putative hybrid (SNB172) is a barley grass isolate. We developed a suite of markers which clearly distinguish the two forms of P. teres and enable unambiguous identification of hybrids. |
Keywords | Molecular Markers, Pyrenophora teres, Hybridisation |
ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Crop Health |
Curtin University | |
Curtin University of Technology | |
Agriculture Victoria | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4401/rare-pyrenophora-teres-hybridization-events-revealed-by-development-of-sequence-specific-pcr-markers
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