Resistance of cowpea (Vigna unguiculata (L.) Walp.) breeding lines to blackeye cowpea mosaic and cowpea aphid borne mosaic potyvirus isolates under experimental conditions

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationCentre de Coopération Internationale en Recherche Agronomique Pour le Développement
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationGovernment Medical College, Thiruvananthapuram
cg.contributor.donorBiotechnology and Biological Sciences Research Council, United Kingdom
cg.coverage.countryUnited Kingdom
cg.coverage.countryNigeria
cg.coverage.countryIndia
cg.coverage.iso3166-alpha2GB
cg.coverage.iso3166-alpha2NG
cg.coverage.iso3166-alpha2IN
cg.coverage.regionACP
cg.coverage.regionAfrica
cg.coverage.regionAsia
cg.coverage.regionEurope
cg.coverage.regionWestern Africa
cg.coverage.regionSouthern Asia
cg.coverage.regionNorthern Europe
cg.issn0340-8159
cg.reviewStatusPeer Review
cg.subject.iitaFOOD SECURITY
cg.subject.iitaCOWPEA
cg.subject.iitaGENETIC IMPROVEMENT
cg.subject.iitaPLANT BREEDING
cg.subject.iitaPLANT DISEASES
dc.contributor.authorBoxtel, Jos van
dc.contributor.authorSingh, B.
dc.contributor.authorThottappilly, G.
dc.contributor.authorMaule, A.
dc.date.accessioned2019-03-03T05:55:18Zen
dc.date.available2019-03-03T05:55:18Zen
dc.identifier.urihttps://hdl.handle.net/10568/100086
dc.titleResistance of cowpea (Vigna unguiculata (L.) Walp.) breeding lines to blackeye cowpea mosaic and cowpea aphid borne mosaic potyvirus isolates under experimental conditionsen
dcterms.abstractVirus diseases cause substantial yield reduction in cowpea ( Vigna unguiculata (L.) Walp) production in West and Central Africa. Improved cowpea cultivars have been developed and distributed to various national programs but these cultivars were tested only against local virus isolates. To identify resistance applicable to a wider cowpea distribution, fourteen cowpea lines were analyzed under glasshouse conditions for susceptibility to infection by three isolates of Blackeye cowpea mosaic virus (BCMV-B1C) and ten isolates of Cowpea aphid-borne mosaic virus (CAbMV). The potyvirus isolates were representative of diverse geographical origins. The cowpea lines, derived from a Nigerian breeding program, comprised ten elite lines, three progenitor lines and one improved local cultivar. The elite lines differed widely in their susceptibility and did not always show a correlation between field performance and resistance to virus infection under experimental conditions. The two cowpea lines displaying highest overall resistance under experimental conditions were still susceptible to several CAbMV isolates. In most cases, it should be possible to complement these resistance deficiencies from genes in other lines. For the CAbMV-Morocco isolate, for which no resistance was identified, the development of engineered virus resistance may be appropriate. In general, the work argues for a combined approach in assessing new cowpea lines for disease resistance, where plants are challenged under both field and experimental conditions.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationVan Boxtel, J., Singh, B., Thottappilly, G. & Maule, A. (2000). Resistance of cowpea (Vigna unguiculata (L.) Walp.) breeding lines to blackeye cowpea mosaic and cowpea aphid borne mosaic potyvirus isolates under experimental conditions. Journal of Plant Disease and Protection, 107, 197-449.en
dcterms.issued2000
dcterms.languageen
dcterms.subjectcowpeasen
dcterms.subjectvirusen
dcterms.subjectgenesen
dcterms.subjectbreedingen
dcterms.subjectpestsen
dcterms.subjectgermplasmen
dcterms.typeJournal Article

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