Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza

Citrus tristeza virus (CTV) causes one of the most devastating diseases of citrus worldwide. It induces the death of sweet orange, mandarin, lime and grapefruit trees budded on sour orange which has caused its replacement by other CTV-tolerant rootstocks. The availability of a CTV-resistant rootstoc...

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Main Authors: Anderson, Catalina M., Plata, Maria I., Garavello, Miguel, Costa, Norma, Pena, Leandro
Other Authors: Sabater-Munoz, Beatriz
Format: Objeto de conferencia
Language:Inglés
Published: 2017
Online Access:http://hdl.handle.net/20.500.11939/5687
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author Anderson, Catalina M.
Plata, Maria I.
Garavello, Miguel
Costa, Norma
Pena, Leandro
author2 Sabater-Munoz, Beatriz
author_browse Anderson, Catalina M.
Costa, Norma
Garavello, Miguel
Pena, Leandro
Plata, Maria I.
Sabater-Munoz, Beatriz
author_facet Sabater-Munoz, Beatriz
Anderson, Catalina M.
Plata, Maria I.
Garavello, Miguel
Costa, Norma
Pena, Leandro
author_sort Anderson, Catalina M.
collection ReDivia
description Citrus tristeza virus (CTV) causes one of the most devastating diseases of citrus worldwide. It induces the death of sweet orange, mandarin, lime and grapefruit trees budded on sour orange which has caused its replacement by other CTV-tolerant rootstocks. The availability of a CTV-resistant rootstock with the sour orange attributes of productivity, fruit quality and tolerance to abiotic stresses would be a major benefit to the citrus industry worldwide. The objective of this work was to evaluate the response to CTV of 10 sour orange (Citrus aurantium) transgenic lines carrying CTV-derived sequences. They were obtained in the laboratories of IVIA, Spain and planted at INTA Experiment Station in Concordia, Argentina, where CTV is endemic and efficiently transmitted by the brown citrus aphid (Toxoptera citricida). Trees were obtained by budding rooted cuttings of transgenic sour orange lines with non-transgenic and virus-free Valencia late sweet orange (C. sinensis). Valencia trees budded on tolerant rootstocks as well as non-transgenic sour orange were planted as controls. Trees were planted in a complete randomized design with two trees per plot and 5 replications. Every six months imprints were taken to determine the progress of CTV infection in each tree. Four years after planting, almost 100% of the trees are CTV infected, showing stunting growth and yellowing of foliage.
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institution Instituto Valenciano de Investigaciones Agrarias (IVIA)
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spelling ReDivia56872025-04-25T14:52:27Z Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza Acta Horticulturae Anderson, Catalina M. Plata, Maria I. Garavello, Miguel Costa, Norma Pena, Leandro Sabater-Munoz, Beatriz Moreno, Pedro Pena, Leandro Navarro, Luis Citrus tristeza virus (CTV) causes one of the most devastating diseases of citrus worldwide. It induces the death of sweet orange, mandarin, lime and grapefruit trees budded on sour orange which has caused its replacement by other CTV-tolerant rootstocks. The availability of a CTV-resistant rootstock with the sour orange attributes of productivity, fruit quality and tolerance to abiotic stresses would be a major benefit to the citrus industry worldwide. The objective of this work was to evaluate the response to CTV of 10 sour orange (Citrus aurantium) transgenic lines carrying CTV-derived sequences. They were obtained in the laboratories of IVIA, Spain and planted at INTA Experiment Station in Concordia, Argentina, where CTV is endemic and efficiently transmitted by the brown citrus aphid (Toxoptera citricida). Trees were obtained by budding rooted cuttings of transgenic sour orange lines with non-transgenic and virus-free Valencia late sweet orange (C. sinensis). Valencia trees budded on tolerant rootstocks as well as non-transgenic sour orange were planted as controls. Trees were planted in a complete randomized design with two trees per plot and 5 replications. Every six months imprints were taken to determine the progress of CTV infection in each tree. Four years after planting, almost 100% of the trees are CTV infected, showing stunting growth and yellowing of foliage. 2017-06-01T10:12:50Z 2017-06-01T10:12:50Z 2015 2015 conferenceObject Anderson, Catalina M., Plata, M. I., Garavello, Miguel, Costa, Norma, Pena, L. (2015). Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza. Acta Horticulturae, 1065, 345-350. 0567-7572; 978-94-62610-53-8 http://hdl.handle.net/20.500.11939/5687 10.17660/ActaHortic.2015.1065.41 en openAccess Impreso
spellingShingle Anderson, Catalina M.
Plata, Maria I.
Garavello, Miguel
Costa, Norma
Pena, Leandro
Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza
title Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza
title_full Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza
title_fullStr Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza
title_full_unstemmed Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza
title_short Results from a Three Years Field Trial Planted at Concordia, Argentina Using Transgenic Rootstocks Potentially Resistant to Tristeza
title_sort results from a three years field trial planted at concordia argentina using transgenic rootstocks potentially resistant to tristeza
url http://hdl.handle.net/20.500.11939/5687
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