Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates

We studied the genetic variability of three genomic regions (p23, p25 and p27 genes) from 11 field Citrus tristeza virus isolates from the two main citrus growing areas of Argentina, a country where the most efficient vector of the virus, <i>Toxoptera citricida</i>, is present for decade...

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Autores principales: Iglesias, Néstor Gabriel, Gago Zachert, Selma Pérsida, Robledo Dobladez, Germán Ariel, Costa, Norma B., Plata, Maria Inés, Vera, Osmar D., Grau, Oscar, Semorile, Liliana Carmen
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Naturales
Biología
Citrus tristeza virus
Toxoptera citricida
Single-strand conformation polymorphism
Nucleotide diversity
Mixed infections
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/136099
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-136099
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Biología
Citrus tristeza virus
Toxoptera citricida
Single-strand conformation polymorphism
Nucleotide diversity
Mixed infections
spellingShingle Ciencias Naturales
Biología
Citrus tristeza virus
Toxoptera citricida
Single-strand conformation polymorphism
Nucleotide diversity
Mixed infections
Iglesias, Néstor Gabriel
Gago Zachert, Selma Pérsida
Robledo Dobladez, Germán Ariel
Costa, Norma B.
Plata, Maria Inés
Vera, Osmar D.
Grau, Oscar
Semorile, Liliana Carmen
Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates
topic_facet Ciencias Naturales
Biología
Citrus tristeza virus
Toxoptera citricida
Single-strand conformation polymorphism
Nucleotide diversity
Mixed infections
description We studied the genetic variability of three genomic regions (p23, p25 and p27 genes) from 11 field Citrus tristeza virus isolates from the two main citrus growing areas of Argentina, a country where the most efficient vector of the virus, <i>Toxoptera citricida</i>, is present for decades. The pathogenicity of the isolates was determinated by biological indexing, single-strand conformation polymorphism analysis showed that most isolates contained high intra-isolate variability. Divergent sequence variants were detected in some isolates, suggesting re-infections of the field plants. Phylogenetic analysis of the predominant sequence variants of each isolate revealed similar grouping of isolates for genes p25 and p27. The analysis of p23 showed two groups contained the severe isolates. Our results showed a high intra-isolate sequence variability suggesting that re-infections could contribute to the observed variability and that the host can play an important role in the selection of the sequence variants present in these isolates.
format Articulo
Articulo
author Iglesias, Néstor Gabriel
Gago Zachert, Selma Pérsida
Robledo Dobladez, Germán Ariel
Costa, Norma B.
Plata, Maria Inés
Vera, Osmar D.
Grau, Oscar
Semorile, Liliana Carmen
author_facet Iglesias, Néstor Gabriel
Gago Zachert, Selma Pérsida
Robledo Dobladez, Germán Ariel
Costa, Norma B.
Plata, Maria Inés
Vera, Osmar D.
Grau, Oscar
Semorile, Liliana Carmen
author_sort Iglesias, Néstor Gabriel
title Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates
title_short Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates
title_full Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates
title_fullStr Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates
title_full_unstemmed Population structure of <i>Citrus tristeza virus</i> from field Argentinean isolates
title_sort population structure of <i>citrus tristeza virus</i> from field argentinean isolates
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/136099
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