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Distribution and diversity of Potato mop-top virus in Sweden

Beuch, Ulrike (2013). Distribution and diversity of Potato mop-top virus in Sweden. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880 ; 2013:77
ISBN 978-91-576-7892-8
eISBN 978-91-576-7893-5
[Doctoral thesis]

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During the last decades, spraing disease caused by Potato mop-top virus (PMTV) has become a severe problem in the potato production throughout the Nordic countries. In this thesis, it was shown that PMTV is widely distributed throughout Sweden, Norway and Denmark, and has now become prevalent in the potato-production areas within these countries. In Sweden, PMTV was found to be present further north than observed in an earlier study. Compared to the Nordic countries, the occurrence of PMTV in Poland, the Baltic countries and northwestern Russia is still very limited. Molecular characterization and phylogenetic relationship analyses were carried out for 43 new PMTV sequences originating from potato tubers and field soil from Sweden, Denmark and the USA. The results showed a limited diversity of PMTV based on RNA-CP and RNA-TGB. No strict geographical grouping was obtained for isolates from Europe, Asia and North America indicating that PMTV has spread through infected seed tubers. Weeds, as alternative hosts of plants viruses and their vectors, are an important factor in the epidemiology of plant virus diseases. PMTV was detected in the roots of the weed Chenopodium album, which had been naturally infected with the virus in the field. C. album may together with weeds of the family Solanaceae be an important factor for maintaining PMTV in a field. Sequence analysis revealed a close relationship between the PMTV isolates from C. album and other characterised isolates suggesting that the same genotypes of PMTV are infecting potato and C. album.

The presence in Sweden of three other potato-infecting viruses associated with necrotic symptoms in tubers was demonstrated: Tobacco rattle virus (TRV), Tobacco necrosis virus (TNV) and Potato virus Y (PVY). TRV has become prevalent in potato fields located from southern and up to the central part of Sweden. Analyses of tubers with typical necrotic symptoms of the ABC disease confirmed infection with TNV. In addition, two different necrotic strains of PVY, PVYNTN and PVYNW, were detected in symptomatic potatoes. The presence of TNV and PVYNTN/PVYNW in potato plants was to our knowledge confirmed for the first time in Sweden.

Authors/Creators:Beuch, Ulrike
Title:Distribution and diversity of Potato mop-top virus in Sweden
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :October 2013
Number of Pages:50
I.Santala J., Samuilova O., Hannukkala A., Latvala S., Kortemaa H., Beuch U., Kvarnheden A., Persson P., Topp K., Ørstad K., Spetz C., Nielsen S.L., Kirk H.G., Budziszewska M., Wieczorek P., Obrepalska-Steplowska A., Pospieszny H., Kryszczuk A., Sztangret-Wiśniewska J., Yin Z., Chrzanowska M., Zimnoch-Guzowska E., Jackeviciene E., Taluntyte L., Pupola N., Mihailova J., Lielmane I., Järvekülg, L., Kotkas K., Rogozina E., Sozonov A., Tikhonovich I., Horn P., Broer I., Kuusiene S., Staniulis J., Uth J.G., Adam G., Valkonen, J. P. T (2010). Detection, distribution and control of Potato mop-top virus, a soil-borne virus, in northern Europe. Annals of Applied Biology 157(2), 163-178.
II.Beuch U., Persson P., Edin E., Kvarnheden A. (2013). Necrotic diseases caused by viruses in Swedish potato tubers. Plant Pathology, in press,(Online ISSN: 1365-3059).
III.Beuch U., Berlin, S., Nicolaisen M., Nielsen S.L., Åkerblom J., Crosslin J., Hamm P.B, Santala J., Valkonen J.P.T., Kvarnheden A. Diversity and evolution of Potato mop-top virus. (Manuscript)
IV.Beuch U., Mueller K., Kvarnheden A. Detection of Potato mop-top virus in the weed Chenopodium album. (Manuscript)
Place of Publication:Uppsala
Publisher:Dept. of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences
Associated Programs and Other Stakeholders:Z - SLU - Library > Odla mera
ISBN for printed version:978-91-576-7892-8
ISBN for electronic version:978-91-576-7893-5
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:H Protection of plants and stored products > H20 Plant diseases
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Microbiology (Microbiology in the medical area to be 30109)
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Evolutionary Biology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Horticulture
Agrovoc terms:solanum tuberosum, plant diseases, potato mop top furovirus, potato y potyvirus, tobacco necrosis necrovirus, tobacco rattle tobravirus, viroses, genetic variation, genotypes, chenopodium, phylogeny, analytical methods
Keywords:ABC disease, Chenopodium album, genetic variability, phylogeny, Potato mop-top virus, Potato virus Y, Tobacco necrosis virus, Tobacco rattle virus, spraing disease, weed
Permanent URL:
ID Code:10852
Department:(NL, NJ) > Dept. of Plant Biology and Forest Genetics (until 131231)
Deposited By: Ulrike Beuch
Deposited On:15 Oct 2013 10:03
Metadata Last Modified:22 Mar 2015 15:13

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