Olive latent virus 1

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Olive latent virus 1 (OLV-1)

Infected olive trees either have no symptoms or show low vigor, dwarfing, bushy growth, fasciation and bifurcation of stems, or yellow and sickle-shaped leaves. It commonly infects olive trees is some regions. E.g. in Portugal infection rates of this and the related virus Olive mild mosaic virus can reach 30% with frequent mixed infections. The virus has been also associated with clorosis and dwarfing in citrus, as well as with necrosis in tulips and tomatoes.

OLV-1 has a positive-sense single-stranded RNA genome with about 3.7 kb which encodes 5 open reading frames.