title: Genetic diversity of Wheat dwarf virus.
abstract: The complete sequence of a new wheat-infecting isolate of Wheat dwarf virus from Sweden (WDV-[Enk1]) was determined, as well as a 726-nt region covering part of rep and the long intergenic region (LIR) of six other wheat-infecting Swedish isolates and a barley-infecting isolate from Hungary (WDV-Bar[HU]). Analyses including these and previously published sequences showed that the wheat-infecting isolates of WDV displayed less than 3% of divergence. Most of the nucleotide changes were silent and the largest variation was detected in LIR. In contrast, the barley-infecting isolate was clearly different with 16% of sequence divergence compared to the wheat isolates. The WDV isolates infecting barley or wheat seem to represent two differentiated strains.
authors.affiliation: Department of Plant Biology, Swedish University of Agricultural Sciences, Uppsala. Anders.Kvarnheden@vbiol.slu.se
authors.forename: A
authors.initials: A
authors.lastname: Kvarnheden
authors.forename: M
authors.initials: M
authors.lastname: Lindblad
authors.forename: K
authors.initials: K
authors.lastname: Lindsten
authors.forename: J P T
authors.initials: JP
authors.lastname: Valkonen
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D004265:DNA Helicases / Q000235:genetics; D021901:DNA, Intergenic / Q000235:genetics; D004268:DNA-Binding Proteins; D017791:Geminiviridae / Q000145:classification / Q000235:genetics*; D005814:Genes, Viral; D014644:Genetic Variation; D001467:Hordeum / Q000821:virology; D008969:Molecular Sequence Data; D010802:Phylogeny; D010935:Plant Diseases / Q000821:virology*; D016133:Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D015534:Trans-Activators / Q000235:genetics; D014908:Triticum / Q000821:virology*
chemical_list: D021901:DNA, Intergenic; D004268:DNA-Binding Proteins; D015534:Trans-Activators; C045264:replication initiator protein; D004265:DNA Helicases