Diversity of dicotyledenous-infecting geminiviruses and their associated DNA molecules in southern Africa, including the South-West Indian Ocean Islands

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dc.contributor.author Rey, Marie E.C.
dc.contributor.author Ndunguru, Joseph
dc.contributor.author Berrie, Leigh C.
dc.contributor.author Paximadis, Maria
dc.contributor.author Berry, Shaun
dc.contributor.author Cossa, Nurbibi
dc.contributor.author Nuaila, Valter N.
dc.contributor.author Mabasa, Kenneth G.
dc.contributor.author Abraham, Natasha
dc.contributor.author Rybicki, Edward P.
dc.contributor.author Martin, Darren
dc.contributor.author Pietersen, Gerhard
dc.contributor.author Esterhuizen, Lindy L.
dc.date.accessioned 2012-11-29T06:14:56Z
dc.date.available 2012-11-29T06:14:56Z
dc.date.issued 2012-09-24
dc.description.abstract The family Geminiviridae comprises a group of plant-infecting circular ssDNA viruses that severely constrain agricultural production throughout the temperate regions of the world, and are a particularly serious threat to food security in sub-Saharan Africa. While geminiviruses exhibit considerable diversity in terms of their nucleotide sequences, genome structures, host ranges and insect vectors, the best characterised and economically most important of these viruses are those in the genus Begomovirus. Whereas begomoviruses are generally considered to be either monopartite (one ssDNA component) or bipartite (two circular ssDNA components called DNA-A and DNA-B), many apparently monopartite begomoviruses are associated with additional subviral ssDNA satellite components, called alpha- (DNA-αs) or betasatellites (DNA-βs). Additionally, subgenomic molecules, also known as defective interfering (DIs) DNAs that are usually derived from the parent helper virus through deletions of parts of its genome, are also associated with bipartite and monopartite begomoviruses. The past three decades have witnessed the emergence and diversification of various new begomoviral species and associated DI DNAs, in southern Africa, East Africa, and proximal Indian Ocean islands, which today threaten important vegetable and commercial crops such as, tobacco, cassava, tomato, sweet potato, and beans. This review aims to describe what is known about these viruses and their impacts on sustainable production in this sensitive region of the world. en_US
dc.description.uri http://www.mdpi.com/journal/viruses en_US
dc.identifier.citation Rey, MEC, Ndunguru, J, Berrie, LC, Paximadis, M, Berry, S, Cossa, N, Nuaila, VN, Mabasa, KG, Abraham, N, Rybicki, EP, Martin, D, Pietersen, G & Esterhuizen, LL 2012, 'Diversity of dicotyledenous-infecting geminiviruses and their associated DNA molecules in southern Africa, including the South-West Indian Ocean Islands', Viruses, vol. 4, no. 9, pp.1753-1791. en_US
dc.identifier.issn 1999-4915 (print)
dc.identifier.issn 1999-4915 (online)
dc.identifier.other 10.3390/v4091753
dc.identifier.uri http://hdl.handle.net/2263/20591
dc.language.iso en en_US
dc.publisher MDPI en_US
dc.rights © 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license. en_US
dc.subject Geminiviruses en_US
dc.subject Sweepoviruses en_US
dc.subject Dicotyledenous crops en_US
dc.subject Southern Africa en_US
dc.subject Eastern Africa en_US
dc.subject South-West Indian Oceans en_US
dc.subject Diversity en_US
dc.subject Recombination en_US
dc.title Diversity of dicotyledenous-infecting geminiviruses and their associated DNA molecules in southern Africa, including the South-West Indian Ocean Islands en_US
dc.type Article en_US


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