TY - NEWS
TI - Foliar Infiltration of Virus-Derived Small Hairpin RNAs Triggers the RNAi Mechanism against the Cucumber Mosaic Virus
AU - Villegas Estrada, Bernardo
AU - Sánchez, Manuel Alejandro
AU - Valencia-Jimenez, Arnubio
AB - Post-transcriptional gene silencing (PTGS) is an evolutionarily conserved plant defense
mechanism against viruses. This paper aimed to evaluate a dsDNA construct (77 bp) as a template
for in vitro production of virus-derived artificial small hairpin RNAs (shRNAs) and test for their
potential to trigger the RNAi mechanism in Nicotiana benthamiana plants against CMV after their
foliar infiltration. This approach allowed for the production of significant amounts of shRNAs
(60-mers) quickly and easily. The gene silencing was confirmed using polymerase chain reaction
(PCR), immunological-based assays, and real-time PCR (qPCR). The highest levels of gene silencing
were recorded for mRNAs coding for replication protein (ORF1a), the viral suppressor of RNA
silencing (ORF2b), and the capsid protein (ORF3b), with 98, 94, and 70% of total transcript silencing, respectively. This protocol provides an alternative to producing significant shRNAs that can
effectively trigger the RNAi mechanism against CMV
DA - 2022-04-29
KW - CMV
KW - capsid protein
KW - Nicotiana benthamiana
KW - gene silencing
KW - shRNA
PB - International Journal of Molecular Sciences I
UR - https://repositorio.ufps.edu.co/handle/ufps/6484
ER -