Confirmation of Peronospora agrimoniae as a distinct species

Petrzelova, Irena and Choi, Young-Joon and Jemelkova, Michaela and Dolezalova, Ivana and Kruse, Julia and Thines, Marco and Kitner, Miloslav (2017) Confirmation of Peronospora agrimoniae as a distinct species. European Journal of Plant Pathology, 147 (4). pp. 887-896. ISSN 0929-1873


Abstract

Leaves with typical symptoms of downy mildew were found on common agrimony in the Czech Republic in 2014 and 2015 and at several locations in Germany from 2010 to 2014. The causal agent of downy mildew of agrimony was often reported as Peronospora agrimoniae, but sometimes also as P. sparsa. Morphological characteristics of the pathogens found in both countries are in the range of previous works for P. agrimoniae, but also other downy mildews parasitic on Rosaceae, rendering their discrimination based on published observations difficult. For molecular identification sequencing of several loci (nrITS rDNA, cox1 and cox2) was performed. Phylogenetic analyses based on nrITS rDNA clearly separated P. agrimoniae from other Peronospora species infecting Rosaceae. Thus, considering P. agrimoniae as separate species seems justified. Two German specimens were identical to two Czech samples in both nrITS rDNA and cox1 mtDNA sequences, but differed in a single nucleotide substitution in cox2 region. To our knowledge, this is the first verified record of P. agrimoniae on common agrimony in the Czech Republic.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019)
Date Deposited: 04 Sep 2019 02:06
Last Modified: 10 Sep 2019 02:06
Uncontrolled Keywords: downy mildew of agrimony, morphology, molecular identification, obligate biotrophs, peronospora Rosaceae
Fields of Research (2008): 06 Biological Sciences > 0605 Microbiology > 060505 Mycology
Identification Number or DOI: https://doi.org/10.1007/s10658-016-1058-8
URI: http://eprints.usq.edu.au/id/eprint/36206

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