Scientific selection: a century of increasing crop varietal diversity in US wheat

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dc.contributor.authorChaia, Yuanen_ZA
dc.contributor.authorPardey, Philip G.en_ZA
dc.contributor.authorSilverstein, Kevin A. T.en_ZA
dc.date.accessioned2024-04-02T12:07:26Z
dc.date.available2024-04-02T12:07:26Z
dc.date.issued2022-12-13en_ZA
dc.descriptionThe original publication is available at: https://www.pnas.orgen_ZA
dc.description.abstractA prevalent and persistent biodiversity concern is that modern cropping systems lead to an erosion in crop genetic diversity. Although certain trait uniformity provides advantages in crop management and marketing, farmers facing risks from change in climate, pests, and markets are also incentivized to adopt new varieties to address complex and spatially variable genetics, environment, and crop management interactions to optimize crop performance. In this study, we applied phylogenetically blind and phylogenetically informed diversity metrics to reveal significant increases in both the spatial and temporal diversity of the US wheat crop over the past century. Contrary to commonly held perceptions on the negative impact of modern cropping systems on crop genetic diversity, our results demonstrated a win-win outcome where the widespread uptake of scientifically selected varieties increased both crop production and crop diversity.en_ZA
dc.description.urihttps://www.pnas.org/doi/full/10.1073/pnas.2210773119en_ZA
dc.description.versionPublisher’s versionen_ZA
dc.format.extent12 pagesen_ZA
dc.identifier.citationChai, Yuan, Pardey, Philip G. & Silverstein, Kevin A. T. 2022. Scientific selection: A century of increasing crop varietal diversity in US wheat. PNAS 119(51):12 pages. doi.10.1073/pnas.2210773119en_ZA
dc.identifier.doi10.1073/pnas.2210773119en_ZA
dc.identifier.issn1091-6490 (online)en_ZA
dc.identifier.orcid0000-0002-5127-9107en_ZA
dc.identifier.orcid0000-0002-8012-1341en_ZA
dc.identifier.orcid0000-0002-4955-3218en_ZA
dc.identifier.urihttps://scholar.sun.ac.za/handle/10019.1/129565
dc.language.isoen
dc.publisherNational Academy of Science
dc.rights.holderAuthors retain copyright
dc.subject.lcshWheaten_ZA
dc.subject.lcshPlant diversityen_ZA
dc.subject.lcshAgricultural productivityen_ZA
dc.subject.lcshBiodiversityen_ZA
dc.subject.lcshCrops -- Varietiesen_ZA
dc.titleScientific selection: a century of increasing crop varietal diversity in US wheaten_ZA
dc.typeArticleen_ZA
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