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Traditional and transgenic strategies for controlling tomato-infecting begomoviruses

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Author(s): FREITAS-ASTÚA JULIANA | PURCIFULL DAN E. | POLSTON JANE E. | HIEBERT ERNEST

Journal: Fitopatologia Brasileira
ISSN 0100-4158

Volume: 27;
Issue: 5;
Start page: 437;
Date: 2002;
Original page

Keywords: whitefly-transmitted geminivirus | gene silencing | plant transformation | tomato begomovirus | geminivirus control | Geminiviridae

ABSTRACT
Viruses of to the family Geminiviridae are considered some of the most important pathogens in tropical and subtropical regions of the world. Members of one Geminiviridae genus, Begomovirus, have been causing severe losses, particularly in tomato (Lycopersicon esculentum) production in the Americas and the Caribbean. Several new begomoviruses have been reported in the region and, at least one, Tomato yellow leaf curl virus (TYLCV), has been brought in from the Old World via infected transplants. In addition, the recombination events that are playing an important role in Begomovirus diversity have increased the complexity of their control. This scenario has led to the search for control measures that go beyond traditional host genetic resistance, chemical controls and cultural practices. In this review, besides the recommended classical control measures, transgenic approaches will be discussed, as well as the mechanisms involved in their successful control of viruses.
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