Trends in Varietal Diversity of Main Staple Crops in Asia and Africa and Implications for Sustainable Food Systems

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cg.authorship.typesCGIAR single centreen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.affiliationInternational Rice Research Instituteen
cg.contributor.affiliationBioversity International and the International Center for Tropical Agricultureen
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorBill & Melinda Gates Foundationen
cg.coverage.regionAfrica
cg.coverage.regionAsia
cg.creator.identifierMarcel Gatto: 0000-0002-0108-3296
cg.creator.identifierStef de Haan: 0000-0001-8690-1886
cg.creator.identifierAlice Laborte: 0000-0002-6689-8920
cg.creator.identifierMerideth Bonierbale: 0000-0002-5157-187X
cg.creator.identifierRicardo Labarta: 0000-0003-3517-8768
cg.creator.identifierGuy Gaston HAREAU ALGORTA: 0000-0002-8458-9259
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.3389/fsufs.2021.626714en
cg.isijournalISI Journalen
cg.issn2571-581Xen
cg.journalFrontiers in Sustainable Food Systemsen
cg.reviewStatusPeer Reviewen
cg.subject.cipBIODIVERSITY FOR THE FUTUREen
cg.subject.cipCROP PROTECTIONen
cg.subject.cipCROP AND SYSTEMS SCIENCES CSSen
cg.subject.cipFOOD SYSTEMSen
cg.subject.cipIMPACT ASSESSMENTen
cg.subject.cipINCLUSIVE GROWTHen
cg.volume5en
dc.contributor.authorGatto, M.en
dc.contributor.authorHaan, Stef deen
dc.contributor.authorLaborte, Alice G.en
dc.contributor.authorBonierbale, Merideth W.en
dc.contributor.authorLabarta, Ricardo Antonioen
dc.contributor.authorHareau, Guyen
dc.date.accessioned2021-02-24T23:04:19Zen
dc.date.available2021-02-24T23:04:19Zen
dc.identifier.urihttps://hdl.handle.net/10568/111547
dc.titleTrends in Varietal Diversity of Main Staple Crops in Asia and Africa and Implications for Sustainable Food Systemsen
dcterms.abstractCrop species and varietal diversity on farm have the potential to trigger multiple regulating and provisioning ecosystem services. The latter is commonly assessed through targeted studies covering a select number of geographies and crop species, precluding comparisons across crops and at scale. This study draws on a large dataset on the varietal release dynamics for 11 major food crops in 44 countries of Asia and Africa to assess trends in diversity across crops and regions with a 50-year perspective. Our results show an increasing reduction of crop varietal diversity linked to the spatial displacement of traditional landraces. This trend occurs at a faster rate in Asia than in Africa. So-called mega varieties tend to increasingly dominate agricultural landscapes, adding to spatial homogeneity. We further found a negative association between varietal richness and its relative abundance, challenging the relationship between crop improvement and varietal diversity. Our results show that among cereal, pulse, and root and tuber crops, varietal diversity is lowest for cereals in Asia and highest for root and tubers in Africa. The analysis contributes new information useful to prioritize crops for which increasing varietal diversity may lead to more sustainable food systems.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceExtensionen
dcterms.audienceFarmersen
dcterms.available2021-02-23
dcterms.bibliographicCitationGatto, M., de Haan, S., Laborte, A., Bonierbale, M., Labarta, R., & Hareau, G. (2021). Trends in Varietal Diversity of Main Staple Crops in Asia and Africa and Implications for Sustainable Food Systems. Frontiers in Sustainable Food Systems. ISSN: 2571-581X.en
dcterms.issued2021-02
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherFrontiers Mediaen
dcterms.subjectcrop improvementen
dcterms.subjectresilienceen
dcterms.subjectafricaen
dcterms.subjectasiaen
dcterms.typeJournal Article

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