Comparing the regional epidemiology of the cassava mosaic and cassava brown streak virus pandemics in Africa

…, HM Obiero, MN Maruthi, I Ndyetabula, G Okao-Okuja… - Virus research, 2011 - Elsevier
… Preliminary efforts to detect CBSVs in more than 60 alternative host plants in Uganda have
been unsuccessful (G. Okao-Okuja, unpublished data), but more comprehensive studies with …

A distinct Bemisia tabaci (Gennadius) (Hemiptera: Sternorrhyncha: Aleyrodidae) genotype cluster is associated with the epidemic of severe cassava mosaic virus …

JP Legg, R French, D Rogan, G OkaoOkuja… - Molecular …, 2002 - Wiley Online Library
During the 1990s, an epidemic of cassava mosaic virus disease caused major losses to cassava
production in Uganda. Two factors associated with the epidemic were the occurrence of …

Spatio-temporal patterns of genetic change amongst populations of cassava Bemisia tabaci whiteflies driving virus pandemics in East and Central Africa

…, G Okao-Okuja, R Shirima, S Bigirimana, G Gashaka… - Virus research, 2014 - Elsevier
The greatest current threat to cassava in sub-Saharan Africa, is the continued expansion of
plant virus pandemics being driven by super-abundant populations of the whitefly vector, …

[HTML][HTML] Tree Lab: Portable genomics for early detection of plant viruses and pests in Sub-Saharan Africa

…, J Mwangi, P Abidrabo, G Okao-Okuja, G Omuut… - Genes, 2019 - mdpi.com
In this case study we successfully teamed the PDQeX DNA purification technology developed
by MicroGEM, New Zealand, with the MinION and MinIT mobile sequencing devices …

The effect of cassava mosaic geminiviruses on symptom severity, growth and root yield of a cassava mosaic virus disease‐susceptible cultivar in Uganda

B Owor, JP Legg, G OkaoOkuja… - Annals of applied …, 2004 - Wiley Online Library
A study was carried out to assess the effect of different cassava mosaic geminiviruses (CMGs)
occurring in Uganda on the growth and yield of the susceptible local cultivar ‘…

[HTML][HTML] Cassava brown streak virus has a rapidly evolving genome: implications for virus speciation, variability, diagnosis and host resistance

…, J Ndunguru, P Sseruwagi, F Tairo, G Okao-Okuja… - Scientific reports, 2016 - nature.com
… Figure 3 shows clades labeled A–G which correspond to; 1) labels AF from Ndunguru et
al. , and 2) a new clade G defined in this study. Within the CBSV clade, there are several …

[HTML][HTML] Field level RNAi-mediated resistance to cassava brown streak disease across multiple cropping cycles and diverse East African agro-ecological locations

…, G Beyene, J Aleu, J Odipio, G Okao-Okuja… - Frontiers in Plant …, 2017 - frontiersin.org
… Between 0.02 g and 0.05 g dried leaf sample was removed from the pressed newsprint,
placed into a 2 ml screwcap tube and ground with a sterile ceramic bead to a fine powder using …

[HTML][HTML] Resistance of advanced cassava breeding clones to infection by major viruses in Uganda

DR Mukiibi, T Alicai, R Kawuki, G Okao-Okuja, F Tairo… - Crop Protection, 2019 - Elsevier
Cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) are two viral
diseases that cause severe yield losses in cassava of up to 100%, thereby persistently …

Occurrence and distribution of cassava pests and diseases in Rwanda

…, D Nkezabahizi, JP Legg, G Okao-Okuja… - Agriculture, ecosystems …, 2011 - Elsevier
A survey was conducted in 2007 to obtain information on the distribution, incidence and
severity of cassava pests and diseases in Rwanda, and determine how these parameters relate …

Real time portable genome sequencing for global food security

…, J Erasto, H Bachwenkizi, T Alicai, G Okao-Okuja… - bioRxiv, 2018 - biorxiv.org
The United Nations has listed Zero Hunger as one of the 17 global sustainable development
goals to end extreme poverty by 2030. Plant viruses are a major constraint to crop …