Responses of white yam (Dioscorea rotundata) cultivars to inoculation with three viruses

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Date
2004-04
Author
Odu, B.O.
Hughes, J.D.A.
Asiedu, Robert
Ng, N.Q.
Shoyinka, S.A.
Oladiran, O.A.
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Abstract/Description
The responses of 24 white yam (Dioscorea rotundata) cultivars to mechanical and vector transmission with each of three viruses infecting yams were assessed through enzyme-linked immunosorbent assay (ELISA) and symptom development. The viruses were Dioscorea alata virus (DAV), genus Potyvirus; Dioscorea alata bacilliform virus (DaBV), genus Badnavirus; and Cucumber mosaic virus (CMV), genus Cucumovirus. Only TDr 95-128, a landrace cultivar from Nigeria, developed symptoms of infection with CMV and DaBV following mechanical and vector transmission, respectively. PAS-ELISA showed that nine genotypes remained uninfected by DAV and 11 were uninfected by CMV or DaBV. Genotypes TDr 747 and TDr 1640 both showed resistance to all three viruses.
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Permanent link to this item
https://hdl.handle.net/20.500.12478/4208
Digital Object Identifier (DOI)
https://doi.org/10.1111/j.0032-0862.2004.00997.x
IITA Subjects
Yam
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