A diagnostic survey was conducted in 2002-03 to determine the status of cassava mosaic begomoviruses in Nigeria and to ascertain if the virulent Ugandan variant of East African cassava mosaic virus (EACMV-Ug2) was present. Of the 418 farms visited, 48% had cassava with moderately severe or severe...
Ogbe, F.
,
Dixon, Alfred G.O.
,
Hughes, J.D.
,
Alabi, O.J.
,
Okechukwu, R.U.
,
[Status of cassava begomoviruses and their new natural hosts in Nigeria]
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Status of cassava begomoviruses and their new natural hosts in Nigeria
Nineteen white yam (Dioscorea rotundata Poir.) genotypes were grown in four agroecological zones in Nigeria for 2 years to study their responses to yam virus diseases, and to investigate the influence of genotype × environment (G × E) interactions on their reactions to virus infection, using the ...
Odu, B.O.
,
Asiedu, Robert
,
Shoyinka, S.A.
,
Hughes, J.D.
,
[Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria]
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Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria
A yam potyvirus was isolated from Dioscorea alata samples collected in Nigeria. The virus was not transmissible mechanically but was transmitted by Aphis craccivora to four cowpea cultivars (Ife Brown, IT84S‐2114, IT82E‐10 and TVu2657), and from which it could be mechanically transmitted between ...
Odu, B.O.
,
Hughes, J.D.
,
Shoyinka, S.A.
,
Dongo, L.N.
,
[Isolation, characterisation and identification of a potyvirus from Dioscorea alata L. (water yam) in Nigeria]
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Isolation, characterisation and identification of a potyvirus from Dioscorea alata L. (water yam) in Nigeria
Kahane, R.
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Hodgkin, T.
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Jaenicke, H.
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Hoogendoorn, C.
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Hermann, M.
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Keatinge, J.D.H.
,
Hughes, J.D.
,
Padulosi, S.
,
Looney, N.
,
[Agrobiodiversity for food security, health and income]
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Agrobiodiversity for food security, health and income
An Agrobacterium-mediated plant transformation system was developed for the production of transgenic plantain [Musa spp. cultivar Agbagba (AAB)]. Apical shoot tips were transformed using Agrobacterium strain EHA105 with the binary vector pCAMBIA 1201, having the hygromycin resistancegene as a sel...