title: Molecular characterization and taxonomy of grapevine leafroll-associated virus 7.
abstract: The complete nucleotide sequence of an Albanian isolate of grapevine leafroll-associated virus 7 (GLRaV-7-Alb) was determined. The viral genome consists of 16,404 nucleotides and has nine open reading frames (ORFs) that potentially encode proteins, most of which are typical for members of the family Closteroviridae. Only the 25-kDa (ORF8) and 27-kDa (ORF9) proteins had no apparent similarity to other viral proteins in the sequence databases. The genome structure of GLRaV-7-Alb closely resembles that of little cherry virus 1 and cordyline virus 1. In phylogenetic trees constructed with HSP70h sequences, these three viruses cluster together in a clade next to that comprising members of the genus Crinivirus, to which they are more closely related than to the clostero- and ampeloviruses. The molecular properties of these three viruses differ sufficiently from those of members of the three extant genera of the family Closteroviridae to warrant their classification in a novel genus.
authors: Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Julius Kuehn Institute, Schwabenheimer Str. 101, 69221 Dossenheim, Germany. Wilhelm.Jelkmann@jki.bund.de
authors: Wilhelm
authors: W
authors: Jelkmann
authors: Cord
authors: C
authors: Mikona
authors: Camilla
authors: C
authors: Turturo
authors: Beatriz
authors: B
authors: Navarro
authors: Mike E
authors: ME
authors: Rott
authors: Wulf
authors: W
authors: Menzel
authors: Pasquale
authors: P
authors: Saldarelli
authors: Angelantonio
authors: A
authors: Minafra
authors: Giovanni P
authors: GP
authors: Martelli
mesh_terms: D000415:Albania; D029381:Closteroviridae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D016679:Genome, Viral; D008969:Molecular Sequence Data; D016366:Open Reading Frames; D010802:Phylogeny; D010935:Plant Diseases / Q000821:virology*; D027843:Vitis / Q000821:virology*