Plant Pathology (2014) 63, 1177-1184

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A.A.M. Al-Shihi, A.J. Khan, S. Akhtar, A.T.M. Lima, F.M. Zerbini and R.W. Briddon (2014)
Occurrence of a new recombinant begomovirus species infecting tomato in the Al-Batinah region of Oman
Plant Pathology 63 (5), 1177-1184
Abstract: Whitefly-transmitted begomoviruses are the most important limiting factor for tomato cultivation in Oman, particularly in the Al-Batinah region, the major agricultural area of the country. Commercial farms in the Al-Batinah region were surveyed during January–March 2013. Samples of tomato showing leaf curl disease symptoms typical of begomoviruses were collected and analysed. Full-length sequences of five clones were shown to have relatively low percentage identity values to known begomoviruses, with the highest (88·6%) to isolates of Tomato leaf curl Oman virus (ToLCOMV), a begomovirus previously reported in Oman, indicating that these represent a newly identified species, for which the name Tomato leaf curl Barka virus (ToLCBrV) is proposed. Four isolates of ToLCBrV were found associated with Tomato leaf curl betasatellite (ToLCB). The five isolates of ToLCBrV characterized in this study were shown to be recombinants, with ToLCOMV as the major parent, and a fragment of Croton yellow vein virus (CrYVV) spanning the 3' half of the replication-associated protein. The significance of these findings is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Rob W. Briddon, F. Murilo Zerbini

Research topic(s) for pests/diseases/weeds:
molecular biology - genes
identification/taxonomy


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Tomato leaf curl Oman virus Tomato (Solanum lycopersicum) Oman
Tomato leaf curl Barka virus Tomato (Solanum lycopersicum) Oman