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Effectiveness of gene silencing induced by viral vectors based on Citrus leaf blotch virus is different in Nicotiana benthamiana and citrus plants

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URI
http://hdl.handle.net/20.500.11939/4888
DOI
10.1016/j.virol.2014.04.017
Derechos de acceso
openAccess
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Author
Agüero, Jesús; Vives, María C.; Velázquez, Karelia; Pina, José A.; Navarro, Luis; Moreno, Pedro; Guerri, José
Date
2014
Cita bibliográfica
Aguero, Jesus, del C. Vives, M., Velazquez, Karelia, A. Pina, J., Navarro, L., Moreno, P., Guerri, J. (2014). Effectiveness of gene silencing induced by viral vectors based on Citrus leaf blotch virus is different in Nicotiana benthamiana and citrus plants. Virology, 460, 154-164.
Abstract
Virus induced gene silencing (VIGS) is an effective technology for gene function analysis in plants. We assessed the VIGS effectiveness in Nicotiana benthamiana and citrus plants of different Citrus leaf blotch virus (CLBV)-based vectors, using insets of the phytoene desaturase (pds) gene. While in N. benthamiana the silencing phenotype was induced only by the construct carrying a 58-nt pds hairpin, in citrus plants all the constructs induced the silencing phenotype. Differences in the generation of secondary small interfering RNAs in both species are believed to be responsible for differential host-species effects. The ability of CLBV-based vectors to silence different endogenous citrus genes was further confirmed. Since CLBV-based vectors are known to be stable and induce VIGS in successive flushes for several months, these vectors provide an important genomic tool and it is expected that they will be useful to analyze gene function by reverse genetics in the long-lived citrus plants.
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