Global Spread, Genetic Differentiation, and Selection of Barley Spot Form Net Blotch Isolates
Article
Hassett, Kealan, Muria-Gonzalez, Mariano Jordi, Martin, Anke, Karakaya, Aziz, Oguz, Arzu Çelik, Bakonyi, Jószef, Knight, Noel L., Prins, Renée and Ellwood, Simon R.. 2024. "Global Spread, Genetic Differentiation, and Selection of Barley Spot Form Net Blotch Isolates." Phytopathology: International Journal of the American Phytopathological Society. 114 (7), pp. 1542-1553. https://doi.org/10.1094/PHYTO-11-23-0442-R
Article Title | Global Spread, Genetic Differentiation, and Selection of Barley Spot Form Net Blotch Isolates |
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ERA Journal ID | 2639 |
Article Category | Article |
Authors | Hassett, Kealan, Muria-Gonzalez, Mariano Jordi, Martin, Anke, Karakaya, Aziz, Oguz, Arzu Çelik, Bakonyi, Jószef, Knight, Noel L., Prins, Renée and Ellwood, Simon R. |
Journal Title | Phytopathology: International Journal of the American Phytopathological Society |
Journal Citation | 114 (7), pp. 1542-1553 |
Number of Pages | 12 |
Year | 2024 |
Publisher | American Phytopathological Society |
Place of Publication | United States |
ISSN | 0031-949X |
1943-7684 | |
Digital Object Identifier (DOI) | https://doi.org/10.1094/PHYTO-11-23-0442-R |
Web Address (URL) | https://apsjournals.apsnet.org/doi/10.1094/PHYTO-11-23-0442-R |
Abstract | Spot form net blotch, caused by Pyrenophora teres f. maculata, is a significant necrotrophic disease of barley that spread worldwide in the twentieth century. Genetic relationships were analyzed to determine the diversity, survival, and dispersal of a diverse collection of 346 isolates from Australia, Southern Africa, North America, Asia Minor, and Europe. The results, based on genome-wide DArTseq data, indicated that isolates from Turkey were the most differentiated with regional sub-structuring, together with individuals closely related to geographically distant genotypes. Elsewhere, population subdivision related to country of origin was evident, although low levels of admixturing was found that may represent rare genotypes or migration from unsampled populations. Canadian isolates were the next most diverged, and Australian and South African the most closely related. With the exception of Turkish isolates, multiple independent Cyp51A mutation events (which confer insensitivity to demethylation inhibitor fungicides) between countries and within regions was evident, with strong selection for a transposable element insertion at the 3’ end of the promoter and counterselection elsewhere. Individuals from Western Australia shared genomic regions and Cyp51A haplotypes with South African isolates, suggesting a recent common origin. Copyright © 2024 The Author(s). |
Keywords | diversity arrays technology; ungicide resistance; Hordeumvulgare; soft selective sweeps |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
Byline Affiliations | Curtin University |
Centre for Crop Health | |
Ankara University, Turkiye | |
HUN-REN Centre for Agricultural Research, Hungary | |
CenGen, South Africa |
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https://research.usq.edu.au/item/z99w6/global-spread-genetic-differentiation-and-selection-of-barley-spot-form-net-blotch-isolates
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