Genetic variability and population structure of Grapevine leafroll-associated virus 3 isolates (Articolo in rivista)

Type
Label
  • Genetic variability and population structure of Grapevine leafroll-associated virus 3 isolates (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1099/vir.0.80395-0 (literal)
Alternative label
  • Turturo C.; Saldarelli P.; Yafeng D.; Digiaro M.; Minafra A.; Savino V.; Martelli G. P. (2005)
    Genetic variability and population structure of Grapevine leafroll-associated virus 3 isolates
    in Journal of general virology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Turturo C.; Saldarelli P.; Yafeng D.; Digiaro M.; Minafra A.; Savino V.; Martelli G. P. (literal)
Pagina inizio
  • 217 (literal)
Pagina fine
  • 224 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Impact Factor 2005: 3.013 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Il lavoro descrive la struttura di popolazione di isolati di Grapevine leafroll associated virus 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • AFFILIAZIONE AUTORI: Dipartimento di Protezione delle Piante e Microbiologia Applicata, Università degli Studi Bari; Istituto Agronomico Mediterraneo, Valenzano, Bari, Italy (literal)
Titolo
  • Genetic variability and population structure of Grapevine leafroll-associated virus 3 isolates (literal)
Abstract
  • ABSTRACT: The genetic variability and population structure of a collection of 45 Grapevine leafroll-associated virus 3 (GLRaV-3) isolates were studied by single-stranded conformation polymorphism (SSCP) and sequence analysis of the RNA-dependent RNA polymerase (RdRp), heat-shock protein 70 homologue (HSP-70) and coat protein (CP) genes. The distribution of SSCP profiles was not correlated with the geographical origin of the isolates, indicating that GLRaV-3 is a single, undifferentiated population. The majority of the isolates showed an SSCP profile and a population structure that were composed of a single predominant variant. However, 10 % of the isolates for the RdRp and HSP-70 genes and 15 % for the CP gene were composed of a combination of two or more variants. Estimation of genetic diversity and phylogenetic analysis disclosed the possible existence of vines with mixed infections by diverging sequence variants, showing, in some cases, possible recombination events. Furthermore, differences in the genetic diversity and constraints existing in the three regions analysed indicated a higher variability in the CP gene. The epidemiological and biological implications of this finding are discussed. (literal)
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