The complex interactions of common bean (Phaseolus vulgaris L.) with viruses, vectors and beneficial organisms in the context of Sub-Saharan Africa

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dc.creatorTrisna, D. Tungadi
dc.creatorFrancis, O. Wamonje
dc.creatorNetsai, M. Mhlanga
dc.creatorAlex, M. Murphy
dc.creatorWarren, Arinaitwe
dc.creatorJohn, P. Carr
dc.date2025-08-25
dc.date2026-06-02T08:02:54Z
dc.date.accessioned2026-06-27T13:28:27Z
dc.descriptionCommon bean (Phaseolus vulgaris L.), the world’s most widely grown legume crop, is not only of great commercial importance but is also a vital smallholder crop in low-to- medium-income countries. In sub-Saharan Africa common bean provides consumers with a major proportion of their dietary protein and micronutrients. However, productivity is constrained by viruses, particularly those vectored by aphids and whiteflies, and problems are further compounded by seed-borne transmission. We describe common bean’s major viral threats including the aphid-transmitted RNA viruses bean common mosaic virus and bean common mosaic necrosis virus, and the whitefly-transmitted begomoviruses bean golden mosaic virus and bean golden yellow mosaic virus and discuss how high-throughput sequencing is revealing emerging threats. We discuss how recent work on indirect and direct viral ‘manipulation’ of vector behaviour is influencing modelling of viral epidemics. Viral extended phenotypes also modify legume interactions with beneficial organisms including root-associated microbes, pollinators and the natural enemies of vectors. While problems with common bean tissue culture have constrained transgenic and gene editing approaches to crop protection, topical application of double-stranded RNA molecules could provide a practical protection system compatible with the wide diversity of common bean lines grown in sub-Saharan Africa.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/183154
dc.identifier.urihttp://hdl.handle.net/123456789/60515
dc.languageen
dc.publisherMDPI
dc.rightsOpen Access
dc.sourceTrisna, D.T.; Francis, O.W.; Netsai, M.M.; Alex, M.M.; Warren, A.; John, P.C. (2025) The complex interactions of common bean (Phaseolus vulgaris L.) with viruses, vectors and beneficial organisms in the context of Sub-Saharan Africa. Agriculture 15(17): 1808. ISSN: 2077-0472
dc.subjectrhizobium
dc.subjectgrain legumes
dc.subjectarthropods
dc.subjectbegomovirus
dc.subjectpotyviridae
dc.subjectbromoviridae
dc.titleThe complex interactions of common bean (Phaseolus vulgaris L.) with viruses, vectors and beneficial organisms in the context of Sub-Saharan Africa
dc.typeJournal Article

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