Archives of Virology (2019) 164, 1937-1941

Susanne von Bargen, Heike-Luisa Dieckmann, Thierry Candresse, Hans-Peter Mühlbach, Jenny Roßbach and Carmen Büttner (2019)
Determination of the complete genome sequence of European mountain ash ringspot-associated emaravirus from Sorbus intermedia reveals two additional genome segments
Archives of Virology 164 (7), 1937-1941
Abstract: We report the complete genome sequence, comprising six single-stranded RNAs of negative orientation, of a European mountain ash ringspot-associated virus (EMARaV) isolate identified in a diseased Sorbus intermedia (Swedish whitebeam) tree exhibiting prominent chlorotic ringspots, mottle and line pattern on leaves. Since the first observation of EMARaV-like symptoms and detection of the virus in whitebeam in 2012, the tree displayed leaf symptoms every year in at least one third of its canopy, developed dieback symptoms, and showed signs of decline. Two previously unrecorded genome segments of the virus were identified, each encoding a single protein in a negative orientation. RNA5 is 1629 nucleotides long and encodes the putative movement protein (MP) of EMARaV with a molecular mass of 42.4 kDa. RNA6 (1362 nucleotides) encodes a small protein (26.8 kDa) exhibiting some sequence similarity to the P4 protein encoded by EMARaV RNA4. However, its biological function remains to be elucidated. Both novel genome segments are systematically present in EMARaV-infected Sorbus spp., and no additional genome segments could be identified by two independent methods. It is concluded that the six RNAs represent the complete genome of EMARaV.
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Link to article at publishers website
Database assignments for author(s): Susanne von Bargen, Carmen Büttner

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Emaravirus sorbi	Sorbus (crop)