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dc.provenanceCONICET-
dc.creatorIglesias, Nestor Gabriel-
dc.creatorRiquelme Barrera, Karla Lilibeth-
dc.creatorMarengo, Juan Manuel-
dc.creatorCosta, N.-
dc.creatorPlata, M.I.-
dc.creatorSemorile, Liliana Carmen-
dc.date2018-05-09T19:39:41Z-
dc.date2018-05-09T19:39:41Z-
dc.date2005-12-
dc.date2018-04-05T19:23:04Z-
dc.date.accessioned2019-04-29T15:37:35Z-
dc.date.available2019-04-29T15:37:35Z-
dc.date.issued2005-12-
dc.identifierIglesias, Nestor Gabriel; Riquelme Barrera, Karla Lilibeth; Marengo, Juan Manuel; Costa, N.; Plata, M.I.; et al.; Genetic structure of Citrus tristeza virus (CTV) populations from field Argentinian grapefruit isolates.; International Organization of Citrus Virologists; Proceedings of the IOCV; 23; 12-2005; 143-149-
dc.identifierhttp://hdl.handle.net/11336/44676-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/298010-
dc.descriptionCommercial pigmented grapefruit in the Northwest region of Argentina have been seriously affected by Citrus tristeza virus (CTV) and a great number of trees have died. The population structure of 12 grapefruit isolates was assessed by single-strand conformation polymorphism (SSCP) analysis of the p20 gene. SSCP patterns showed that most isolates contained only one predominant sequence variant. Global genetic diversity values were similar to those found for CTV isolates from other world citrus growing regions. However, the within-isolate genetic diversity, quantified by the parameter heterozygosity , showed values higher than those found for CTV isolates from other citrus production areas. The existence of several haplotypes in the same isolate may be due to continuous aphid inoculations with isolates having divergent haplotypes. In Argentina, the main aphid CTV vector, Toxoptera citricida , is endemic. The high heterozygosity of Argentinian isolates makes probable the presence of sequence variants that cause severe symptoms, which could predominate under certain conditions. Analysis of phylogenetic relationships, using p20 gene sequences from GenBank, showed an unrooted tree in which most Argentinian isolates grouped with isolates VT and SY568.-
dc.descriptionFil: Iglesias, Nestor Gabriel. Universidad Nacional de Quilmes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina-
dc.descriptionFil: Riquelme Barrera, Karla Lilibeth. Universidad Nacional de Quilmes; Argentina-
dc.descriptionFil: Marengo, Juan Manuel. Universidad Nacional de Quilmes; Argentina-
dc.descriptionFil: Costa, N.. Instituto Nacional de Tecnología Agropecuaria; Argentina-
dc.descriptionFil: Plata, M.I.. Instituto Nacional de Tecnología Agropecuaria; Argentina-
dc.descriptionFil: Semorile, Liliana Carmen. Universidad Nacional de Quilmes; Argentina-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherInternational Organization of Citrus Virologists-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.source.urihttp://hdl.handle.net/11336/44676-
dc.subjectOtras Ciencias Biológicas-
dc.subjectCiencias Biológicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleGenetic structure of Citrus tristeza virus (CTV) populations from field Argentinian grapefruit isolates.-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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