Genetic structure of Phoma betae populations on Beta vulgaris in New York and Washington States, USA
Poster
Paper/Presentation Title | Genetic structure of Phoma betae populations on Beta vulgaris in New York and Washington States, USA |
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Presentation Type | Poster |
Authors | Koenick, L. (Author), Knight, N. L. (Author), Vaghefi, N. (Author), du Toit, L. (Author) and Pethybridge, S. J. (Author) |
Journal or Proceedings Title | Phytopahology |
Journal Citation | 108 (10 - S1), p. 87 |
Number of Pages | 1 |
Year | 2018 |
Place of Publication | St Paul, United States |
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 | Phoma betae is an economically important seedborne pathogen of table beet worldwide that is responsible for damping off, foliar disease, and root decay. The majority of seed used in New York is sourced from the Pacific Northwest region of the USA. During the growing season, P. betae spreads through polycyclic epidemics resulting from the dispersal of conidia by water splash. P. betae may then survive on colonized plant debris in the soil for up to 2 years. P. betae is capable of sexual reproduction, producing pseudothecia that release ascospores that can be dispersed long distances via wind. However, the teleomorph has not been observed in New York or Washington. Understanding the population biology of P. betae can provide insights into pathogen etiology. No information on population genetics of P. betae is available currently. In this study, 10 microsatellite markers were used to genotype P. betae isolates from table beet fields in New York (n=70) and table beet seed crops in Washington (n=105). Isolates were divided into five populations based on collection location in each state. The genetic diversity, differentiation, and linkage equilibrium of each population were assessed. This information can inform management strategies of P. betae in the future. |
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 |
Washington State University, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q536w/genetic-structure-of-phoma-betae-populations-on-beta-vulgaris-in-new-york-and-washington-states-usa
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