Evidence for interspecific-recombination for three monopartite begomoviral genomes associated with the tomato leaf curl disease from central Sudan

Arch Virol. 2005 May;150(5):1003-12. doi: 10.1007/s00705-004-0484-7. Epub 2005 Feb 10.

Abstract

Two distinct viral genotypes were identified in the same tomato plant collected from Gezira, Sudan and are provisionally designated Tomato leaf curl Sudan virus (ToLCSDV-Gez) and Tomato yellow leaf curl virus-Sudan (TYLCV-SD). A third genotype was identified in tomato samples collected in Shambat, Sudan (ToLCSDV-Sha). The ToLCSDV-Gez and ToLCSDV-Sha isolates were approximately 90% identical, TYLCV-SD from Gezira shared approximately 93% identity with TYLCV-Mld. Recombination analyses identified two fragments in the ToLCSDV-Gez and TYLCV-SD genomes, providing evidence that these two genomes had undergone intermolecular recombination. A half unit size (737 nt) single-stranded satellite DNA was associated with ToLCSDV-Gez and TYLCV-SD.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • DNA, Satellite / analysis
  • DNA, Satellite / genetics
  • DNA, Viral / analysis
  • DNA, Viral / genetics
  • Geminiviridae / classification*
  • Geminiviridae / genetics
  • Geminiviridae / isolation & purification
  • Geminiviridae / pathogenicity
  • Genome, Viral*
  • Phylogeny
  • Plant Diseases / virology*
  • Plant Leaves / virology
  • Polymerase Chain Reaction
  • Recombination, Genetic*
  • Solanum lycopersicum / virology*
  • Sudan

Substances

  • DNA, Satellite
  • DNA, Viral