Crop genetic erosion: understanding and responding to loss of crop diversity

dc.creatorKhoury, C.K.
dc.creatorBrush, S.B.
dc.creatorCostich, D.E.
dc.creatorCurry, H.A.
dc.creatorDe Haan, S.
dc.creatorEngels, J.M.M.
dc.creatorGuarino, L.
dc.creatorHoban, S.
dc.creatorMercer, K.L.
dc.creatorMiller, A.J.
dc.creatorNabhan, G.P.
dc.creatorPerales, H.R.
dc.creatorRichards, C.
dc.creatorRiggins, C.
dc.creatorThormann, I.
dc.date2021-12-09T16:47:57Z
dc.date2021-12-09T16:47:57Z
dc.date2021
dc.date.accessioned2023-07-17T20:08:22Z
dc.date.available2023-07-17T20:08:22Z
dc.identifierhttps://hdl.handle.net/10883/21765
dc.identifier10.1111/nph.17733
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7513533
dc.descriptionCrop diversity underpins the productivity, resilience and adaptive capacity of agriculture. Loss of this diversity, termed crop genetic erosion, is therefore concerning. While alarms regarding evident declines in crop diversity have been raised for over a century, the magnitude, trajectory, drivers and significance of these losses remain insufficiently understood. We outline the various definitions, measurements, scales and sources of information on crop genetic erosion. We then provide a synthesis of evidence regarding changes in the diversity of traditional crop landraces on farms, modern crop cultivars in agriculture, crop wild relatives in their natural habitats and crop genetic resources held in conservation repositories. This evidence indicates that marked losses, but also maintenance and increases in diversity, have occurred in all these contexts, the extent depending on species, taxonomic and geographic scale, and region, as well as analytical approach. We discuss steps needed to further advance knowledge around the agricultural and societal significance, as well as conservation implications, of crop genetic erosion. Finally, we propose actions to mitigate, stem and reverse further losses of crop diversity.
dc.description84-118
dc.formatpdf
dc.languageEnglish
dc.publisherWiley
dc.relationhttps://nph.onlinelibrary.wiley.com/doi/10.1111/nph.17733#support-information-section
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
dc.rightsOpen Access
dc.source1
dc.source233
dc.source1469-8137
dc.sourceNew Phytologist
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectCrop Diversity
dc.subjectCrop Landraces
dc.subjectDiachronic Diversity
dc.subjectAGROBIODIVERSITY
dc.subjectBIODIVERSITY CONSERVATION
dc.subjectLANDRACES
dc.subjectCROP WILD RELATIVES
dc.subjectFOOD SECURITY
dc.subjectPLANT GENETIC RESOURCES
dc.titleCrop genetic erosion: understanding and responding to loss of crop diversity
dc.typeArticle
dc.typePublished Version
dc.coverageUnited Kingdom


Este ítem pertenece a la siguiente institución