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Comparing the regional epidemiology of the cassava mosaic and cassava brown streak virus pandemics in Africa.
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. Expand
Cassava virus diseases: biology, epidemiology, and management.
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. Expand
Alternate hosts of African cassava mosaic virus and East African cassava mosaic Cameroon virus in Nigeria
Cassava mosaic disease (CMD) caused by African cassava mosaic virus (ACMV) and East African cassava mosaic Cameroon virus (EACMCV) is the major constraint to cassava production in Nigeria. SequencesExpand
Identification of Cecidophyopsis mites (Acari: Eriophyidae) based on variable simple sequence repeats of ribosomal DNA internal transcribed spacer‐1 sequences via multiplex PCR
Sequence and ecological analysis of this mite suggest that it is a new species of nongall‐forming Cecidophyopsis mite, which was used to identify mite specimens on Ribes from around the world. Expand
Fine mapping of Msv1, a major QTL for resistance to Maize Streak Virus leads to development of production markers for breeding pipelines
Msv1, the major QTL for MSV resistance was delimited to an interval of 0.87 cM on chromosome 1 at 87 Mb and production markers with high prediction accuracy were developed and Haplotype trend regression identified a haplotype block significantly associated with response to MSV. Expand
Two new ‘legumoviruses’ (genus Begomovirus) naturally infecting soybean in Nigeria
The identification of two distinct begomoviruses naturally infecting soybean in Nigeria suggests the occurrence of ‘legumovirus’ in plant species indigenous to Africa and underscores their potential threat to sustainable cultivation of soybean on the African continent. Expand
Identification of a virus naturally infecting sorghum in India as Sugarcane streak mosaic virus
The reverse transcription-polymerase chain reaction (RT-PCR) of the total RNA from the enzyme-linked immunosorbent assay positive sorghum samples with the potyvirus specific degenerate primers yielded an amplicon sequence that confirmed the association of SStMV with the mosaic disease of Sorghum in Andhra Pradesh state, India. Expand
First Report of Soybean Witches'-Broom Disease Caused by Group 16SrII Phytoplasma in Soybean in Malawi and Mozambique.
This is the first report of phyllody and witches'-broom disease in soybean in Malawi and the first molecular evidence of association of a 16SrII-C group 'Candidatus phytoplasma' with the disease inMalawi and Mozambique. Expand
Distribution and diversity of viruses infecting yams (Dioscorea spp.) in Cameroon
High prevalence of mosaic disease in yam fields and YMV as main causal agent is demonstrated and knowledge generated in this study will be useful to augment diagnostic tools and yam mosaic disease control with a view to improve on yam production in Cameroon. Expand