Evaluation of two gene-silencing constructs for resistance to tomato yellow leaf curl viruses in Nicotiana benthamiana plants

S Gharsallah Chouchane, F Gorsane, M K Nakhla, M Salus, C T Martin, D P Maxwell, M Marrakchi, H Fakhfakh

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Infiltration of Agrobacterium tumefaciens into intact plant leaves of N. benthamiana was used to test the efficiency of two virus-based silencing constructs conferring resistance to the closely related begomoviruses. The constructs contained the most conserved sequences of the coat protein (CP) gene and replication-associated protein (Rep) gene of Tomato yellow leaf curl Sardinia virus (Sicily strain) (TYLCSV-[Sic]). Both constructs formed a hairpin structure that enhanced the post-transcriptional gene-silencing mechanism. When agro-infiltrated plants were challenged separately with infectious viruses TYLCSV-[Sic] and Tomato yellow leaf curl virus (TYLCV), the plants showed resistance to TYLCSV-[Sic], but not to the related TYLCV.

Original languageEnglish (US)
Pages (from-to)143-9
Number of pages7
JournalActa Virologica
Volume52
Issue number3
StatePublished - 2008

Keywords

  • Agriculture/methods
  • Agrobacterium tumefaciens/genetics
  • Begomovirus/genetics
  • Capsid Proteins/genetics
  • Solanum lycopersicum/virology
  • Plant Diseases/virology
  • Plant Leaves/virology
  • Plants, Genetically Modified/genetics
  • RNA Interference
  • Tobacco/genetics
  • Viral Proteins/genetics

PubMed: MeSH publication types

  • Evaluation Study
  • Journal Article
  • Research Support, Non-U.S. Gov't

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