Journal ArticleDOI
Comparing the regional epidemiology of the cassava mosaic and cassava brown streak virus pandemics in Africa
James P. Legg,Simon C. Jeremiah,Hannington Obiero,Midatharahally N. Maruthi,Innocent Ndyetabula,Geoffrey Okao-Okuja,H. Bouwmeester,S. Bigirimana,W. Tata-Hangy,G. Gashaka,Geoffrey Mkamilo,Titus Alicai,P. Lava Kumar +12 more
TLDR
An important similarity between the pandemics is that the viruses occurring in pandemic-affected areas are also found elsewhere, indicating that contrary to earlier published conclusions, the viruses per se are unlikely to be the key factors driving the two pandemic.About:
This article is published in Virus Research.The article was published on 2011-08-01. It has received 296 citations till now. The article focuses on the topics: Population & Outbreak.read more
Citations
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Journal ArticleDOI
Impact of Host Plant Species and Whitefly Species on Feeding Behavior of Bemisia tabaci.
TL;DR: The electrical penetration graph (EPG) technique makes it possible to conduct detailed feeding studies of sap-sucking insects by creating an electric circuit through the insect and the plant and results show that feeding of SSA1-SG3 is not restricted to cassava, and Wire diameter affects the feeding in a statistically and practically significant manner.
Journal ArticleDOI
Role of the Insect Supervectors Bemisia tabaci and Frankliniella occidentalis in the Emergence and Global Spread of Plant Viruses.
TL;DR: The plant virus-supervector interaction offers exciting opportunities for basic research and global implementation of generalized disease management strategies to reduce economic and environmental impacts.
Journal ArticleDOI
The draft genome of whitefly Bemisia tabaci MEAM1, a global crop pest, provides novel insights into virus transmission, host adaptation, and insecticide resistance
Wenbo Chen,Daniel K. Hasegawa,Daniel K. Hasegawa,Navneet Kaur,Adi Kliot,Patricia V. Pinheiro,Patricia V. Pinheiro,Patricia V. Pinheiro,Jun-Bo Luan,Marcus C. Stensmyr,Yi Zheng,Wenli Liu,Honghe Sun,Yimin Xu,Yuan Luo,Angela Kruse,Xiaowei Yang,Svetlana Kontsedalov,Galina Lebedev,Tonja W. Fisher,David R. Nelson,Wayne B. Hunter,Judith K. Brown,Georg Jander,Michelle Cilia,Michelle Cilia,Michelle Cilia,Angela E. Douglas,Murad Ghanim,Alvin M. Simmons,William M. Wintermantel,Kai Shu Ling,Zhangjun Fei,Zhangjun Fei +33 more
TL;DR: The B. tabaci genome contains numerous genetic novelties, including expansions in gene families associated with insecticide resistance, detoxification and virus transmission, as well as numerous horizontally transferred genes from bacteria and fungi.
Journal ArticleDOI
Environmental impacts and constraints associated with the production of major food crops in Sub-Saharan Africa and South Asia
Travis W. Reynolds,Stephen R. Waddington,C. Leigh Anderson,Alexander Chew,Zoe True,Alison C. Cullen +5 more
TL;DR: In this paper, the authors review the published literature and assess the depth of recent research on crop x environment interactions for rice, maize, sorghum/millets, sweetpotato/yam and cassava in Sub-Saharan Africa and South Asia.
Book ChapterDOI
Cassava Virus Diseases: Biology, Epidemiology, and Management
James P. Legg,P. Lava Kumar,T. Makeshkumar,Leena Tripathi,Morag Ferguson,Edward Kanju,Pheneas Ntawuruhunga,Wilmer J. Cuellar +7 more
TL;DR: Current knowledge on the biology, epidemiology, and control of the most economically important groups of viruses in relation to both farming and cultural practices are reviewed and the likely future global outlook for virus disease management in cassava is examined.
References
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Journal ArticleDOI
Evidence that DNA-A of a geminivirus associated with severe cassava mosaic disease in Uganda has arisen by interspecific recombination.
TL;DR: UgV isolates were detected in severely mosaic-affected plants from all 11 widely separated locations sampled, and the probable role of recombination in geminivirus evolution in the short to medium term is discussed.
Journal ArticleDOI
Recombination, pseudorecombination and synergism of geminiviruses are determinant keys to the epidemic of severe cassava mosaic disease in Uganda
TL;DR: Analysis of naturally infected cassava plants showed various assortments of DNA-A and DNA-B of the Ugandan viruses, suggesting the occurrence of natural inter- and intraspecies pseudorecombinations and a pattern of cassava mosaic disease (CMD) more complex than previously reported.
Journal ArticleDOI
Revision of taxonomic criteria for species demarcation in the family Geminiviridae, and an updated list of begomovirus species.
Claude M. Fauquet,D. M. Bisaro,Rob W. Briddon,Judith K. Brown,Bryan D. Harrison,Edward P. Rybicki,Drake C. Stenger,John Stanley +7 more
TL;DR: Members of the family Geminiviridae characteristically have circular single-stranded DNAgenomes packaged within twinned (so-called geminate) particles that cause yield losses to many crop plants throughout the world.
Journal ArticleDOI
Differential Roles of AC2 and AC4 of Cassava Geminiviruses in Mediating Synergism and Suppression of Posttranscriptional Gene Silencing
TL;DR: It is reported that synergism between ACMV-[CM] and EACMCV is a two-way process, as the presence of the DNA-A component of ACMVs or EacMCV in trans enhanced the accumulation of viral DNA of EAC MCV and ACMv-[CM], respectively, in tobacco BY-2 protoplasts.
Journal ArticleDOI
Evidence of synergism between African cassava mosaic virus and a new double-recombinant geminivirus infecting cassava in Cameroon.
V. N. Fondong,J. S. Pita,Marie Emma Christine Rey,A. de Kochko,Roger N. Beachy,Claude M. Fauquet +5 more
TL;DR: Southern blot analysis of viral DNAs from infected plants showed that there were significantly higher levels of accumulation of both ACMV/CM components and, to a lesser extent, of EACMV /CM components in mixed-infected plants than in singly infected plants, suggesting the occurrence of a synergistic interaction between the two viruses.