2007
DOI: 10.1007/s00299-007-0422-8
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Genetic transformation of sweet orange with the coat protein gene of Citrus psorosis virus and evaluation of resistance against the virus

Abstract: Citrus psorosis is a serious viral disease affecting citrus trees in many countries. Its causal agent is Citrus psorosis virus (CPsV), the type member of genus Ophiovirus. CPsV infects most important citrus varieties, including oranges, mandarins and grapefruits, as well as hybrids and citrus relatives used as rootstocks. Certification programs have not been sufficient to control the disease and no sources of natural resistance have been found. Pathogen-derived resistance (PDR) can provide an efficient alterna… Show more

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Cited by 56 publications
(62 citation statements)
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“…Citrus cultivars have been genetically modified aiming mainly disease resistance, such as those caused by Phytophthora sp. (Fagoaga et al 2001), Phoma tracheiphila and Botrytis cinerea (Gentile et al 2007;Distefano et al 2008), Citrus tristeza virus (Domínguez et al 2000;Febres et al 2003Febres et al , 2008, and Citrus psorosis virus (Zanek et al 2008). Several approaches have been used to engineer plants for disease resistance, such as direct interference with pathogenicity or inhibition of pathogen physiology (including constitutive expression of antimicrobial factors), pathogen-induced expression of one or more genes, and regulation of the natural induced host defenses (including altering recognitions of the pathogen such as R-genes and downstream regulatory pathways such as systemic acquired resistance (SAR); Collinge et al 2008).…”
Section: Discussionmentioning
confidence: 96%
“…Citrus cultivars have been genetically modified aiming mainly disease resistance, such as those caused by Phytophthora sp. (Fagoaga et al 2001), Phoma tracheiphila and Botrytis cinerea (Gentile et al 2007;Distefano et al 2008), Citrus tristeza virus (Domínguez et al 2000;Febres et al 2003Febres et al , 2008, and Citrus psorosis virus (Zanek et al 2008). Several approaches have been used to engineer plants for disease resistance, such as direct interference with pathogenicity or inhibition of pathogen physiology (including constitutive expression of antimicrobial factors), pathogen-induced expression of one or more genes, and regulation of the natural induced host defenses (including altering recognitions of the pathogen such as R-genes and downstream regulatory pathways such as systemic acquired resistance (SAR); Collinge et al 2008).…”
Section: Discussionmentioning
confidence: 96%
“…Genetic transformation provides the means for adding a single agronomic trait in perennial plant cultivars without altering their phenotype (Deng and Duan 2006). Until now, various genes have been introduced into citrus species and its relatives to improve agronomical traits, including enhancing abiotic stress tolerance (Cervera et al 2000;Fagoaga et al 2007) and disease resistance (Ananthakrishnan et al 2007;GonzalezRamos et al 2005;Omar et al 2007;Zanek et al 2008), shortening the juvenile phase (Duan et al 2007a;Endo et al 2005;Peña et al 2001), rootstock (Gentile et al 2004), and fruit improvement (Costa et al 2002;Guo et al 2005;Koltunow et al 2000;Li et al 2002;Wong et al 2001). Among these, fruit improvement is of particular importance as it can be very attractive for consumers.…”
Section: Introductionmentioning
confidence: 95%
“…Neste trabalho, cada planta transgênica apresentou diferentes padrões de integração e diferentes números de inserções do transgene no genoma, variando de uma a três cópias. Este valor está dentro do observado por outros autores em plantas de citros transgênicas de uma a quatro inserções (DUTT et al, 2012;REYES et al, 2011;ZANEK et al, 2008). Futuramente, estas plantas serão multiplicadas e avaliadas quanto à resistência ao cancro cítrico e ao HLB.…”
Section: Discussionunclassified