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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research Unit » Research » Publications at this Location » Publication #250704
Title: Strawberry necrotic shock virus

Author
item TZANETAKIS, I - University Of Arkansas
item Martin, Robert

Submitted to: Compendium of Blackberry and Raspberry Diseases and Insects
Publication Type: Book / Chapter
Publication Acceptance Date: 2/20/2010
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The Rubus strain of TSV, now considered to be SNSV, was first reported in California in 1966 in several blackberry and blackberry-raspberry cultivars. It was later commonly found in the Pacific Northwest in cultivated black raspberry and wild and cultivated R. ursinus. The name of Strawberry necrotic shock virus (SNSV) has changed several times over the 50 years since its discovery. SNSV was considered a synonym for Tobacco streak virus (TSV) isolates from Fragaria and Rubus although there was evidence to the contrary: Superinfection with Rubus isolates failed to protect plants against other isolates of TSV, and isolates from strawberry and blackberry failed to hybridize in Northern blots with three TSV isolates. In addition, strawberry and Rubus serotypes were similar and only slightly serologically related to the white clover strain of TSV. It was not until the acquisition of molecular data that it became evident that SNSV and TSV are different viruses sharing about 70% nucleotide sequence identity. SNSV is also a synomym for Black raspberry latent virus (BRLV), a virus name that is still listed in many Rubus certification programs. BRLV was found to occur symptomlessly in cultivated black raspberry in the eastern United States and to be pollen-transmitted to the pollinated plant and through seed. The virus is readily detected by serological and molecular methods. SNSV is very rare in northern Washington, but common in southern Washington and Oregon.SNSV belongs to subgroup I of the Ilarvirus genus.