Odilbekov, Firuz and Edin, Eva and Gustavsson, Larisa and Persson Hovmalm, Helena and Liljeroth, Erland
(2016).
Genetic diversity and occurrence of the F129L substitutions among isolates of Alternaria solani in south-eastern Sweden.
Hereditas. 153
, 1-10
[Journal article]
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Official URL: http://dx.doi.org/10.1186/s41065-016-0014-0
Abstract
Background: Early blight, caused by the fungus Alternaria solani, occurs on potato mainly in the south-eastern part of Sweden, but also in other parts of the country. The aim of this study was to investigate the genetic diversity of A. solani populations from different potato growing regions in south-eastern Sweden using AFLP marker analysis. In addition, the cultured isolates were examined for substitutions in the gene encoding cytochrome b, associated with loss of sensitivity against QoI fungicides.Results: Nei's gene diversity index for the Swedish populations of A. solani revealed a gene diversity of up to 0.20. Also genetic differentiation was observed among populations of A. solani from different locations in south-eastern Sweden. The mitochondrial genotype of the isolates of A. solani was determined and both known genotypes, GI (genotype 1) and GII (genotype 2), were found among the isolates. The occurrence of the F129L substitution associated with a loss of sensitivity to strobilurins was confirmed among the GII isolates. In vitro conidial germination tests verified that isolates containing the F129L substitution had reduced sensitivity to azoxystrobin and, at a lower extent, to pyraclostrobin.Conclusions: Genetic diversity was relatively high among isolates of A. solani in south-eastern part of Sweden. F129L substitutions, leading to reduced sensitivity to strobilurins, have been established in field populations, which may have implications for the future efficacy of QoI fungicides.
Authors/Creators: | Odilbekov, Firuz and Edin, Eva and Gustavsson, Larisa and Persson Hovmalm, Helena and Liljeroth, Erland | ||||
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Title: | Genetic diversity and occurrence of the F129L substitutions among isolates of Alternaria solani in south-eastern Sweden | ||||
Series Name/Journal: | Hereditas | ||||
Year of publishing : | 2016 | ||||
Volume: | 153 | ||||
Page range: | 1-10 | ||||
Number of Pages: | 10 | ||||
Publisher: | BioMed Central | ||||
Associated Programs and Other Stakeholders: | Z - SLU - Libray > Odla mera | ||||
ISSN: | 1601-5223 | ||||
Language: | English | ||||
Publication Type: | Journal article | ||||
Refereed: | Yes | ||||
Article category: | Scientific peer reviewed | ||||
Version: | Published version | ||||
Copyright: | Creative Commons: Attribution 4.0 | ||||
Full Text Status: | Public | ||||
Agris subject categories.: | H Protection of plants and stored products > H01 Protection of plants - General aspects | ||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science | ||||
Keywords: | AFLP, Early blight, Potato, Strobilurin, Sensitivity | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-3924 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3924 | ||||
Additional ID: |
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ID Code: | 14019 | ||||
Faculty: | LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap NJ - Fakulteten för naturresurser och jordbruksvetenskap | ||||
Department: | (LTJ, LTV) > Department of Plant Breeding (from 130101) (LTJ, LTV) > Department of Plant Protection Biology (NL, NJ) > Dept. of Forest Mycology and Plant Pathology (S) > Dept. of Forest Mycology and Plant Pathology | ||||
Deposited By: | SLUpub Connector | ||||
Deposited On: | 03 Feb 2017 12:31 | ||||
Metadata Last Modified: | 09 Sep 2020 14:17 |
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