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Titolo:
The prevalence and spatial distribution of viruses in natural populations of Brassica oleracea
Autore:
Raybould, AF; Maskell, LC; Edwards, ML; Cooper, JI; Gray, AJ;
Indirizzi:
Inst Terr Ecol, Furzebrook Res Stn, Natl Environm Res Council, Wareham BH20 Inst Terr Ecol Wareham Dorset England BH20 5AS Res Council, Wareham BH20 NERC, Inst Virol & Environm Microbiol, Oxford OX1 3SR, England NERC Oxford England OX1 3SR Environm Microbiol, Oxford OX1 3SR, England
Titolo Testata:
NEW PHYTOLOGIST
fascicolo: 2, volume: 141, anno: 1999,
pagine: 265 - 275
SICI:
0028-646X(199902)141:2<265:TPASDO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
HOST-PATHOGEN INTERACTIONS; WINTER OILSEED RAPE; YELLOW MOSAIC-VIRUS; LINUM-MARGINALE; MELAMPSORA-LINI; PLANT-PATHOGEN; RESISTANCE; INFECTION; DYNAMICS; TOBACCO;
Keywords:
Brassica oleracea (wild cabbage); beet western yellows virus; cauliflower mosaic virus; turnip mosaic virus; turnip yellow mosaic virus; multiple infections;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
59
Recensione:
Indirizzi per estratti:
Indirizzo: Raybould, AF Inst Terr Ecol, Furzebrook Res Stn, Natl Environm Res Council, Wareham BH20 Inst Terr Ecol Wareham Dorset England BH20 5AS Wareham BH20
Citazione:
A.F. Raybould et al., "The prevalence and spatial distribution of viruses in natural populations of Brassica oleracea", NEW PHYTOL, 141(2), 1999, pp. 265-275

Abstract

We report a survey of four viruses (beet western yellows luteovirus (BWYV), cauliflower mosaic caulimovirus (CaMV), turnip mosaic potyvirus (TuMV), turnip yellow mosaic tymovirus (TYMV)) in five natural populations of Brassica oleracea in Dorset (UK). All four viruses were common; 43% of plants were infected with BWYV, 60%, with CaMV, 4300 with TuMV and 1800 with TYMV. For each virus there were significant differences in the proportion of infected plants among populations, which were not completely explained by differences in the age of plants. Multiple virus infections were prevalent, with 54% of plants having two or more virus types. There were statistically significant associations between pairs of viruses. The CaMV was positively associated with the other three viruses, and BWYV was also positively associatedwith TuMV. There was no detectable association between BWYV and TYMV, whereas TuMV and TYMV were negatively associated. We suggest these associationsresult from BWYV, CaMV and TuMV having aphid vectors in common, as aphids are attracted to plants that already hal-e a virus infection. Infected plants were distributed randomly or were very weakly aggregated within populations. The implications of widespread multiple virus infections in natural plant populations are discussed with respect to the release of transgenic plants expressing virus-derived genes.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 21:04:52