View source for Plant Breeding (2002) 121, 517-520

{{Publication
|Publication authors=E.A. Ogundiwin, G. Thottappilly, M.E. Aken'Ova, E.J.A. Ekpo and [[Christian Fatokun|C.A. Fatokun]]
|Author Page=Christian Fatokun
|Publication date=2002
|dc:title=Resistance to cowpea mottle carmovirus in ''Vigna vexillata ''
|Publication journal=Plant Breeding
|prism:volume=121 (6)
|prism:startingPage=517
|Last page=520
|DOI=10.1046/j.1439-0523.2002.00769.x
|Publication abstract=Cowpea mottle carmovirus (CPMoV) causes grain yield losses of up to 75% in cowpea (''Vigna unguiculata''[L.] Walp.). There is no resistance to this virus among cultivated cowpea lines, but a high level of resistance exists in ''Vigna vexillata'', a wild ''Vigna'' species. Fifty-four accessions of ''V. vexillata'' germplasm collection at IITA were tested for resistance to CPMoV. Seedlings were mechanically inoculated with the virus and susceptibility or resistance was assessed by visual scoring of disease symptoms and serological analysis using antigen-coated plate enzyme-linked immunosorbent assay (ACP-ELISA). All but three ''V. vexillata'' lines belonging to the variety ''angustifolia'' were resistant to CPMoV. Crosses were made between two resistant ''V. vexillata'' lines and the three susceptible lines. Segregation patterns observed in the ''F''<sub>2</sub> and the backcross populations of all the crosses showed that resistance to CPMoV in ''V. vexillata'' is controlled by a single dominant gene, and the level of resistance conferred by this gene in ''V. vexillata'' is very high.
|AbstractCC=Yes
|Research topic=resistance/tolerance/defence of host
|Is book=No
}}
{{Pest record
|Pest=Gammacarmovirus vignae
|Crop=Cowpea and relatives (Vigna)
|Country=Nigeria
|Quarantined=No
}}