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The Cassava Source-Sink project: opportunities and challenges for crop improvement by metabolic engineering

dc.contributor.authorSonnewald, U.
dc.contributor.authorFernie, A.R.
dc.contributor.authorGruissem, W.
dc.contributor.authorSchlapfer, P.
dc.contributor.authorAnjanappa, R.B.
dc.contributor.authorChang, S.H.
dc.contributor.authorLudewig, F.
dc.contributor.authorRascher, U.
dc.contributor.authorMuller, O.
dc.contributor.authorvan Doorn, A.M.
dc.contributor.authorRabbi, I.Y.
dc.contributor.authorZierer, W.
dc.date.accessioned2022-08-23T13:10:37Z
dc.date.available2022-08-23T13:10:37Z
dc.date.issued2020-08
dc.identifier.citationSonnewald, U., Fernie, A.R., Gruissem, W., Schläpfer, P., Anjanappa, R.B., Chang, S.H., ... & Zierer, W. (2020). The Cassava Source–Sink project: opportunities and challenges for crop improvement by metabolic engineering. The Plant Journal, 103(5), 1655-1665.
dc.identifier.issn0960-7412
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7681
dc.description.abstractCassava (Manihot esculenta Crantz) is one of the important staple foods in Sub‐Saharan Africa. It produces starchy storage roots that provide food and income for several hundred million people, mainly in tropical agriculture zones. Increasing cassava storage root and starch yield is one of the major breeding targets with respect to securing the future food supply for the growing population of Sub‐Saharan Africa. The Cassava Source–Sink (CASS) project aims to increase cassava storage root and starch yield by strategically integrating approaches from different disciplines. We present our perspective and progress on cassava as an applied research organism and provide insight into the CASS strategy, which can serve as a blueprint for the improvement of other root and tuber crops. Extensive profiling of different field‐grown cassava genotypes generates information for leaf, phloem, and root metabolic and physiological processes that are relevant for biotechnological improvements. A multi‐national pipeline for genetic engineering of cassava plants covers all steps from gene discovery, cloning, transformation, molecular and biochemical characterization, confined field trials, and phenotyping of the seasonal dynamics of shoot traits under field conditions. Together, the CASS project generates comprehensive data to facilitate conventional breeding strategies for high‐yielding cassava genotypes. It also builds the foundation for genome‐scale metabolic modelling aiming to predict targets and bottlenecks in metabolic pathways. This information is used to engineer cassava genotypes with improved source–sink relations and increased yield potential.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1655-1665
dc.language.isoen
dc.subjectCassava
dc.subjectManihot Esculenta
dc.subjectBiotechnology
dc.subjectYields
dc.subjectStarch
dc.subjectSubsaharan Africa
dc.titleThe Cassava Source-Sink project: opportunities and challenges for crop improvement by metabolic engineering
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationFriedrich-Alexander-University Erlangen-Nuremberg
cg.contributor.affiliationMax-Planck-Institute of Molecular Plant Physiology
cg.contributor.affiliationETH Zurich
cg.contributor.affiliationNational Chung Hsing University
cg.contributor.affiliationInstitute of Bio- and Geosciences, Germany
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidSONNEWALD:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectPost-Harvesting Technology
cg.journalThe Plant Journal
cg.notesPublished online: 05 Jun 2020
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/tpj.14865
cg.iitaauthor.identifierIsmail Rabbi: 0000-0001-9966-2941
cg.futureupdate.requiredNo
cg.identifier.issue5
cg.identifier.volume103


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