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African cassava mosaic disease
| dc.contributor.author | Legg, J.P. |
| dc.date.accessioned | 2019-12-04T11:20:53Z |
| dc.date.available | 2019-12-04T11:20:53Z |
| dc.date.issued | 2008 |
| dc.identifier.citation | Legg, J. (2008). African cassava mosaic disease. In F. Claude, Encyclopedia of virology (3rd ed., p. 30-36). Oxford: Elsevier. |
| dc.identifier.isbn | 978-0-12-374410-4 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/3567 |
| dc.description.abstract | Cassava mosaic disease (CMD), recognized in Africa for more than a century, is now known to be caused by a group of geminiviruses in the genus Begomovirus from the family Geminiviridae. All are transmitted in a persistent manner by the whitefly vector, Bemisia tabaci. Structurally, cassava mosaic geminiviruses (CMGs) are comprised of two small, single-stranded, circular DNA molecules, DNA-A and DNA-B, each of which is encapsidated within a geminate coat. CMG infection results in symptoms comprising misshapen leaves with a mosaic-like chlorosis and general plant stunting, leading to reduced tuberous root production. Through the processes of virus-virus synergism, pseudo-recombination and true recombination, CMGs have evolved into a diverse and highly successful group of plant pathogens and seven species are currently recognized from Africa. Rapid spread of a recombinant strain, East African cassava mosaic virus-Uganda (EACMV-UG), has been associated with a pandemic of unusually severe CMD, which has affected much of East and Central Africa, leading to production losses of 47%, equivalent to nearly 14 million tonnes. Although the deployment of conventionally-bred host plant resistance is the main approach being used to manage CMGs, with considerable success, increased attention is being given to the development of transgenic resistance strategies. |
| dc.language.iso | en |
| dc.subject | Acmv |
| dc.subject | Begomovirus |
| dc.subject | Bemisia |
| dc.subject | Cassava |
| dc.subject | Cmd |
| dc.subject | Control |
| dc.subject | Eacmv |
| dc.subject | Epidemiology |
| dc.subject | Geminivirus |
| dc.subject | Pandemic |
| dc.subject | Resistance |
| dc.subject | Transmission |
| dc.subject | Whitefly |
| dc.title | African cassava mosaic disease |
| dc.type | Book Chapter |
| dc.description.version | Peer Review |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.coverage.region | Africa |
| cg.coverage.region | Central Africa |
| cg.coverage.region | West Africa |
| cg.coverage.country | Uganda |
| cg.coverage.country | Cameroon |
| cg.coverage.country | Nigeria |
| cg.authorship.types | CGIAR single centre |
| cg.iitasubject | Cassava |
| cg.iitasubject | Disease Control |
| cg.iitasubject | Plant Diseases |
| cg.iitasubject | Bioscience |
| cg.accessibilitystatus | Limited Access |
| local.dspaceid | 95539 |
| cg.identifier.doi | https://doi.org/10.1016/b978-012374410-4.00693-2 |
