Articles
VIRUSES OF ALLIUMS AND THEIR DISTRIBUTION IN DIFFERENT ALLIUM CROPS AND GEOGRAPHICAL REGIONS
Article number
433_69
Pages
607 – 616
Language
Abstract
At least nine distinct viruses are currently known to prevalently infect cultivated Allium spp.: two aphidtransmitted Carlaviruses, shallot latent virus (SLV) and garlic common latent virus (GCLV), four aphid-transmitted Potyviruses, leek yellow stripe virus (LYSV), onion yellow dwarf virus (OYDV), shallot yellow stripe (SYSV) virus and the incompletely characterized welsh onion yellow stripe virus (WOYSV), and three mite-borne filamentous viruses whose taxonomic position is still unclear, onion mite-borne latent virus (OMbLV), shallot mite-borne latent virus (SMbLV) and a mite-borne filamentous virus from garlic (MbFV-G). Several host-specific strains or distinct viruses are currently being characterized e.g. garlic-specific strains of LYSV and OYDV. Work at BBA aims at the production of antisera and monoclonal antibodies specific to these viruses in order to facilitate their specific identification.
These diagnostic tools are needed for virus indexing during in vitro virus elimination schemes for gene bank material produced at AVRDC. Based upon our results we can define serologically distinct strains of SLV, LYSV and OYDV. We present the current status of knowledge, especially on the serological differentiation of the Allium viruses, and preliminary results of surveys which aimed at determining the identity and distribution of Allium viruses in various Allium crops of different geographical regions.
Our observation that different viruses infect Allium in different regions should be taken into account when exchanging vegetatively propagated Allium germplasm between genebanks.
These diagnostic tools are needed for virus indexing during in vitro virus elimination schemes for gene bank material produced at AVRDC. Based upon our results we can define serologically distinct strains of SLV, LYSV and OYDV. We present the current status of knowledge, especially on the serological differentiation of the Allium viruses, and preliminary results of surveys which aimed at determining the identity and distribution of Allium viruses in various Allium crops of different geographical regions.
Our observation that different viruses infect Allium in different regions should be taken into account when exchanging vegetatively propagated Allium germplasm between genebanks.
Publication
Authors
E. Barg, D.-E. Lesemann, H.J. Vetten, S.K. Green
Keywords
Virus indexing, antisera to viruses, monoclonal antibodies, leek yellow stripe virus, onion yellow dwarf virus, shallot yellow stripe virus, welsh onion yellow stripe virus, shallot latent virus, garlic common latent virus, miteborne filamentous virus, onion mite-borne latent virus, shallot mite-borne latent virus, virus strains
Online Articles (74)