Investigating phenotypic traits as potential drivers of the emergence of EU_37_A2, an invasive new lineage of Phytophthora infestans in Western Europe
dc.contributor.author | Puidet, Britt | |
dc.contributor.author | Mabon, Romain | |
dc.contributor.author | Guibert, Michele | |
dc.contributor.author | Kiiker, Riinu | |
dc.contributor.author | Loit, Kaire | |
dc.contributor.author | Le, Vinh Hong | |
dc.contributor.author | Eikemo, Håvard | |
dc.contributor.author | Dewaegeneire, Pauline | |
dc.contributor.author | Saubeau, Guillaume | |
dc.contributor.author | Chatot, Catherine | |
dc.contributor.author | Aurousseau, Frédérique | |
dc.contributor.author | Cooke, David E. L. | |
dc.contributor.author | Lees, Alison K. | |
dc.contributor.author | Abuley, Isaac K. | |
dc.contributor.author | Hansen, Jens G. | |
dc.contributor.author | Corbière, Roselyne | |
dc.contributor.author | Leclerc, Melen | |
dc.contributor.author | Najdabbasi, Neda | |
dc.contributor.author | Andrivon, Didier | |
dc.date.accessioned | 2023-08-31T13:12:49Z | |
dc.date.available | 2023-08-31T13:12:49Z | |
dc.date.created | 2023-05-04T14:02:49Z | |
dc.date.issued | 2023-01-17 | |
dc.identifier.citation | Plant Pathology. 2023, 72 (4), 797-806. | en_US |
dc.identifier.issn | 0032-0862 | |
dc.identifier.uri | https://hdl.handle.net/11250/3086666 | |
dc.description.abstract | Since the mid-2010s, Phytophthora infestans clones that have been dominant in Western Europe from the beginning of the 21st century, for example, EU_13_A2, EU_6_A1 and EU_1_A1, are being replaced by several other emerging clones, including EU_37_A2. The objective of this study was to determine whether the main drivers for the success of EU_37_A2 in Western Europe are associated with decreased fungicide sensitivity, increased virulence and/or aggressiveness. Axenic P. infestans cultures were sampled in the 2016 and 2017 growing seasons from potato crops in France and the United Kingdom. Amongst these, four genotypes were identified: EU_37_A2, EU_13_A2, EU_1_A1 and EU_6_A1. Although a wide range of fluazinam sensitivity was found amongst individual isolates, clonal lines EU_13_A2 and EU_37_A2 showed decreased sensitivity to fluazinam. EU_37_A2 overcame the R5 differential cultivar more often than isolates of EU_1_A1 or EU_6_A1. However, this does not explain the competitive advantage of EU_37_A2 over the virulent EU_13_A2. The fittest genotype, as measured by aggressiveness under controlled conditions, was EU_6_A1, followed by EU_37_A2, EU_13_A2 and then EU_1_A1. EU_37_A2 isolates also showed a shorter latent period than either EU_6_A1 or EU_13_A2, which could favour its long-term persistence. Overall, the data suggest that the emergence of EU_37_A2 in Western Europe was driven by its resistance to a then-major fungicide and shorter generation time. This conclusion is further supported by the fact that EU_37_A2 emergence was slowed by the progressive reduction in the use of fluazinam as a single active ingredient in the years following its initial detection. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | British Society for Plant Pathology | en_US |
dc.title | Investigating phenotypic traits as potential drivers of the emergence of EU_37_A2, an invasive new lineage of Phytophthora infestans in Western Europe | en_US |
dc.title.alternative | Investigating phenotypic traits as potential drivers of the emergence of EU_37_A2, an invasive new lineage of Phytophthora infestans in Western Europe | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | © 2023 British Society for Plant Pathology | en_US |
dc.source.pagenumber | 797-806 | en_US |
dc.source.volume | 72 | en_US |
dc.source.journal | Plant Pathology | en_US |
dc.source.issue | 4 | en_US |
dc.identifier.doi | 10.1111/ppa.13700 | |
dc.identifier.cristin | 2145537 | |
dc.relation.project | Norges forskningsråd: 259826 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 |
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