A novel potyvirus was discovered in Angelica lucida L. (wild celery) and A. genuflexa Nutt. (kneeling Angelica) (family Apiaceae ) in the Matanuska- Susitna Valley, Alaska. The experimental plant host range of the virus included species in three families: Chenopodiaceae ( Chenopodium amaranticolor Coste et Reyn and Chenopodium quinoa Willd.), Solanaceae ( Nicotiana benthamiana Domin, and N. clevlandii Gray.), and Apiaceae ( Anethum graveolens L., Apium graveolens L. var. dulce (Miller)), Daucus carota L. subspecies sativus (Hoffm.) Arcang., and Petroselinum crispum (Miller) Nyman ex A. W. Hilland). The virus contained flexuous rods with an ssRNA genome ∼9.5–10 k nts and a CP (∼35 kDa) that reacted to a universal potyvirus monoclonal antibody in Western blot analysis. The sequenced genomic 3′-end (∼1850 nt) contained a potyvirus genomic arrangement that included the 3′-terminus of the NIb (nuclear inclusion) gene, the CP (coat protein) gene, and a 3′-UTR (untranslated region) attached to a poly(A)tail. The CP amino acids had between 54 and 70% identity with 12 selected members from the genus Potyvirus . Phylogenetically, the Alaskan potyvirus clustered with three other apiaceous potyviruses from Australia. The novel Alaskan virus was confined to A. lucida L. and A. genuflexa Nutt. in nature, and was classified in the genus Potyvirus , family Potyviridae , and in part named after its natural plant hosts, angelica virus Y (AnVY).
Archives of Virology – Springer Journals
Published: Sep 1, 2007
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