An international perspective on genetic structure and gene flow in Cercospora beticola populations
Poster
Paper/Presentation Title | An international perspective on genetic structure and gene flow in Cercospora beticola populations |
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Presentation Type | Poster |
Authors | Knight, N. L. (Author), Vaghefi, N. (Author), Kikkert, J. (Author), Bolton, M. D. (Author), Secor, G. A. (Author), Hanson, L. (Author), Nelson, S. C. (Author) and Pethybridge, S. J. (Author) |
Journal or Proceedings Title | Phytopathology: International Journal of the American Phytopathological Society |
Journal Citation | 108 (10 - S1), p. 89 |
Number of Pages | 1 |
Year | 2018 |
Publisher | American Phytopathological Society |
Place of Publication | St Paul, United States |
ISSN | 0031-949X |
1943-7684 | |
Web Address (URL) of Paper | https://apsjournals.apsnet.org/doi/10.1094/PHYTO-108-10-S1.1 |
Conference/Event | 11th International Congress of Plant Pathology (ICPP 2018): Plant Health in a Global Economy |
Event Details | 11th International Congress of Plant Pathology (ICPP 2018): Plant Health in a Global Economy Event Date 29 Jul 2018 to end of 03 Aug 2018 Event Location Boston, United States |
Abstract | Cercospora leaf spot, caused by the fungus Cercospora beticola Sacc., is an important disease of Beta vulgaris L. (table beet, sugar beet, and Swiss chard) worldwide. Disease impacts include reductions in commodity grading, and quantity and quality of extractable sugars from sugar beet roots. Conidia of C. beticola disperse locally by water or wind to initiate and expand disease foci in fields. Mechanisms for long distance pathogen dispersal and epidemic initiation are largely unknown. Studies of populations from Western Europe, Iran, New Zealand, Turkey, and the USA reported high levels of genetic diversity. Moreover, in some populations, equal ratios of two mating types suggests an active, and potentially mobile, teleomorph. In Europe, long distance dispersal of C. beticola is implied by evidence of high levels of gene flow between isolates across the region, resulting in a single panmictic population. Furthermore, recurrent clonal lineages shared between the USA and Europe provided evidence for intercontinental genotype flow. The genetic relationships among C. beticola isolates from nine countries (Canada (n=37), Chile (n=28), Denmark (n=9), England (n=9), Germany (n=10), Italy (n=11), Sweden (n=8), Turkey (n=7), and four states in the USA (n=1073)) were assessed using 12 microsatellite markers. This information |
ANZSRC Field of Research 2020 | 300804. Horticultural crop protection (incl. pests, diseases and weeds) |
310805. Plant pathology | |
310599. Genetics not elsewhere classified | |
Public Notes | Abstracts only published from Conference. |
Byline Affiliations | Cornell University, United States |
Department of Agriculture, United States | |
North Dakota State University, United States | |
Michigan State University, United States | |
University of Hawaii, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q536z/an-international-perspective-on-genetic-structure-and-gene-flow-in-cercospora-beticola-populations
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