Identification and molecular characterization of a new potyvirus infecting Triteleia species.
Plants of Triteleia hyacinthina, Triteleia ixioides Starlight, and Triteleia laxa Corina with severe mosaic and yellow vein-banding were found to be infected with a potyvirus. The 3'-terminal region of the virus was amplified by RT-PCR from total RNA using a potyvirus-specific degenerate primer (poty5P: 5' GGN AAY AAY AGY GGN CAR CC 3') and an oligo-dTprimer. The sequence generated included the 3'-NIb protein coding region (680 nucleotides), the entire coat protein coding region (840 nucleotides), and 3'-untranslated region (UTR) (253 nucleotides). Amino acid identity of the whole CP between the triteleia virus and potyvirus member ranged from 54% Apium virus Y (ApVY) to 67% Auraujia mosaic virus (ArjMV) and Twisted-stalk chlorotic streak virus (TSCSV) and the core ranged from 59% (ApVY) to 75% (ArjMV). The 3-UTR showed no significant homology with other known potyviruses. Phylogenetic relationships suggest this triteleia virus is a new member of the Potyvirus genus and the name of "Triteleia mosaic virus" (TriMV) is proposed. This is the first report of a potyvirus infecting triteleia.
Miglino
R
R
Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA.
Druffel
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KL
Pappu
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HR
D020413:3' Untranslated Regions; D016000:Cluster Analysis; D005838:Genotype; D019668:Liliaceae / Q000821:virology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D010935:Plant Diseases / Q000821:virology*; D017800:Potyvirus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D012367:RNA, Viral / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D014764:Viral Proteins / Q000235:genetics
D020413:3' Untranslated Regions; D012367:RNA, Viral; D014764:Viral Proteins