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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research Unit » Research » Publications at this Location » Publication #339623
Title: Novel member of the Luteoviridae associated with raspberry leaf curl disease

Author
item DI BELLO, PATRICK - Oregon State University
item DIAZ-LARA, ALFREDO - University Of California
item Martin, Robert

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 4/2/2017
Publication Date: 5/4/2017
Citation: Di Bello, P., Diaz-Lara, A., Martin, R.R. 2017. Novel member of the Luteoviridae associated with raspberry leaf curl disease. Abstract for the International Conference on Virus and Other Graft Transmissible Diseases of Temperate Fruit Crops; 2017 June 5-9; Thessaloniki, Greece.

Interpretive Summary:

Technical Abstract: Raspberry leaf curl virus (RLCV) was first reported in the 1920s, is limited to the genus Rubus and is transmitted in a persistent manner by the small raspberry aphid, Aphis rubicola. It is only reported from North America, principally in the northeastern United States and southeastern Canada, and in the Rocky Mountain regions but not along the west coast. On red raspberry, characteristic severe symptoms usually appear in the growing season following infection where leaves of primocanes as well as floricanes are severely curled, distorted, and chlorotic. Fruit of infected plants is small and crumbly or seedy. It is the only virus disease of Rubus spp. that requires bio-assays for plant exports from North America. The purpose of this study was to identify virus(es) associated with RLCD. Two known viruses were found Black raspberry necrosis virus (BRNV) and Rubus yellow net virus (RYNV), and two new viruses one Cytorhabdovirus-like and one Luteoviridae-like. The new virus in Luteoviridae is related to viruses in the genera Enamovirus and Polerovirus. The virus was found to be graft transmissible to raspberries and blackberries, and vectored by the large raspberry aphid Amphorophora agathonica. The virus was not detected in commercial Rubus, but wild raspberry and germplasm material from the eastern U.S.A. and Canada tested positive for the virus. The full genome as well as a detection protocol will be presented.