Challenge of virus disease threats to ensuring sustained uptake of vitamin-A-rich sweetpotato in Africa

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cg.authorship.typesCGIAR multi-centreen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.affiliationBioversity International and the International Center for Tropical Agricultureen
cg.contributor.crpRoots, Tubers and Bananas
cg.coverage.regionAfrica
cg.creator.identifierJan Kreuze: 0000-0002-6116-9200
cg.creator.identifierWilmer J. Cuellar: 0000-0003-4702-3237
cg.creator.identifierJan Low: 0000-0001-8170-6045
cg.identifier.doihttps://doi.org/10.1007/978-3-030-57899-2_5en
cg.isbn9783030578985en
cg.isbn9783030578992en
cg.issn2512-160Xen
cg.issn2512-1626en
cg.reviewStatusPeer Reviewen
cg.subject.alliancebiovciatFOOD SECURITYen
cg.subject.alliancebiovciatNUTRITIONen
cg.subject.alliancebiovciatPESTS AND DISEASESen
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hungeren
cg.subject.sdgSDG 3 - Good health and well-beingen
dc.contributor.authorKreuze, Jan F.en
dc.contributor.authorCuéllar, Wilmer Joseen
dc.contributor.authorLow, Jan W.en
dc.date.accessioned2021-06-16T09:00:51Zen
dc.date.available2021-06-16T09:00:51Zen
dc.identifier.urihttps://hdl.handle.net/10568/113972
dc.titleChallenge of virus disease threats to ensuring sustained uptake of vitamin-A-rich sweetpotato in Africaen
dcterms.abstractOrange-fleshed sweetpotatoes (OFSP) are a rich source of pro-vitamin A and can alleviate vitamin A deficiency in the developing world. In Africa, traditional varieties have been almost exclusively white-fleshed and introduction and breeding of orange-fleshed varieties into Africa has been severely hampered by virus diseases to which many varieties are susceptible. Breeding progress to generate resistant varieties has been slow due to rare and recessive occurrence of resistance in breeding populations. Production of virus-free seed is complicated by the fact that most sweetpotato viruses show no or only limited symptoms and very low virus concentrations when infected by individual viruses, making them difficult to detect. Even single infections can lead to significant yield losses, but when they combine severe disease complexes are generated, which can lead to total crop failure. Significant efforts have been made in characterizing and understanding virus interactions in sweetpotato over the last two decades to address this challenge; they are reviewed in this chapter. We also review the state of the art in detection of viruses in support of seed systems and breeding. We conclude with recommendations for the most urgent future research directions needed to address virus problems in sweetpotatoes.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2021-05-23
dcterms.bibliographicCitationKreuze, J.; Cuellar, W.; Low, J. (2021) Challenge of virus disease threats to ensuring sustained uptake of vitamin-A-rich sweetpotato in Africa. In: Scott P. (et al. (eds.)) Plant diseases and food security in the 21st Century. Cham (Switzerland): Springer Nature, p. 73-94. ISBN: 978-3-030-57898-5en
dcterms.extentp. 73-94en
dcterms.issued2021
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringeren
dcterms.subjectvirosesen
dcterms.subjectvitamin contenten
dcterms.subjectsweet potatoesen
dcterms.subjectvirosisen
dcterms.subjectcontenido vitamínicoen
dcterms.subjectbatataen
dcterms.subjectfood securityen
dcterms.subjectnutritionen
dcterms.typeBook Chapter

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