Identification and characterization of a novel Tritimovirus species isolated from wild Trisetum flavescens L., family Poaceae

Yellow oat-grass plants (Trisetum flavescens L.) with mild mosaic and pronounced dwarfing symptoms were observed at different locations in the Czech Republic. Electron microscope observations of symptomatic plants revealed the presence of filamentous particles and inclusion bodies characteristic of...

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Veröffentlicht in:Virus genes 2009-08, Vol.39 (1), p.146-152
Hauptverfasser: Hassan, Mohamed, Širlova, Lenka, Jokeš, Milan, Vacke, Josef
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container_title Virus genes
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creator Hassan, Mohamed
Širlova, Lenka
Jokeš, Milan
Vacke, Josef
description Yellow oat-grass plants (Trisetum flavescens L.) with mild mosaic and pronounced dwarfing symptoms were observed at different locations in the Czech Republic. Electron microscope observations of symptomatic plants revealed the presence of filamentous particles and inclusion bodies characteristic of the family Potyviridae. The virus was readily mechanically transmitted to its original host plus a narrow host range of monocot species. Serological assays of infected plant extracts using antiserum specific to the closest species in the family Potyviridae were negative. The 3' end of the viral genome was cloned, sequenced and compared to sequences of species in the family Potyviridae. The virus is more closely related to viruses in the genus Tritimovirus than to other genera within the Potyviridae. Based on phylogenetic analyses of the coat protein cistron and flanking genomic regions, we propose this is a distinct viral species of the genus Tritimovirus, tentatively named Yellow oat-grass mosaic virus (YOgMV).
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subjects Amino Acid Sequence
Biomedical and Life Sciences
Biomedicine
Capsid Proteins - genetics
Cluster Analysis
Czech Republic
Inclusion Bodies - virology
Medical Microbiology
Molecular Sequence Data
Phylogeny
Plant Diseases - virology
Plant Sciences
Poaceae
Poaceae - virology
Potyviridae
Potyviridae - classification
Potyviridae - genetics
Potyviridae - isolation & purification
RNA, Viral - genetics
Sequence Alignment
Sequence Analysis, DNA
Sequence Homology
Trisetum flavescens
Virion - ultrastructure
Virology
title Identification and characterization of a novel Tritimovirus species isolated from wild Trisetum flavescens L., family Poaceae
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