Elucidating the genetic basis of biomass accumulation and radiation use efficiency in spring wheat and its role in yield potential

dc.creatorMolero, G.
dc.creatorJoynson, R.
dc.creatorPiñera Chavez, F.J.
dc.creatorGardiner, L.J.
dc.creatorRivera Amado, A.C.
dc.creatorHall, A.J.W.
dc.creatorReynolds, M.P.
dc.date2019-03-02T01:20:19Z
dc.date2019-03-02T01:20:19Z
dc.date2019
dc.date.accessioned2023-07-17T20:04:01Z
dc.date.available2023-07-17T20:04:01Z
dc.identifierISSN: 1467-7644
dc.identifierISSN: 1467-7652
dc.identifierhttps://hdl.handle.net/10883/20066
dc.identifier10.1111/pbi.13052
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7511894
dc.descriptionOne of the major challenges for plant scientists is increasing wheat (Triticum aestivum) yield potential (YP). A significant bottleneck for increasing YP is achieving increased biomass through optimization of radiation use efficiency (RUE) along the crop cycle. Exotic material such as landraces and synthetic wheat has been incorporated into breeding programmes in an attempt to alleviate this; however, their contribution to YP is still unclear. To understand the genetic basis of biomass accumulation and RUE, we applied genome-wide association study (GWAS) to a panel of 150 elite spring wheat genotypes including many landrace and synthetically derived lines. The panel was evaluated for 31 traits over 2 years under optimal growing conditions and genotyped using the 35K wheat breeders array. Marker-trait association identified 94 SNPs significantly associated with yield, agronomic and phenology-related traits along with RUE and final biomass (BM_PM) at various growth stages that explained 7%–17% of phenotypic variation. Common SNP markers were identified for grain yield, BM_PM and RUE on chromosomes 5A and 7A. Additionally, landrace and synthetic derivative lines showed higher thousand grain weight (TGW), BM_PM and RUE but lower grain number (GM2) and harvest index (HI). Our work demonstrates the use of exotic material as a valuable resource to increase YP. It also provides markers for use in marker-assisted breeding to systematically increase BM_PM, RUE and TGW and avoid the TGW/GM2 and BM_PM/HI trade-off. Thus, achieving greater genetic gains in elite germplasm while also highlighting genomic regions and candidate genes for further study.
dc.description1276-1288
dc.formatPDF
dc.languageEnglish
dc.publisherWiley Open Access
dc.publisherAssociation of Applied Biologists
dc.publisherSociety for Experimental Biology
dc.publisherBlackwell Publishing
dc.relationhttp://hdl.handle.net/11529/11107
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.source7
dc.source17
dc.sourcePlant Biotechnology Journal
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectRadiation Use Efficiency
dc.subjectGenome-Wide Association Study
dc.subjectExotic Material
dc.subjectYIELD POTENTIAL
dc.subjectBIOMASS
dc.subjectWHEAT
dc.titleElucidating the genetic basis of biomass accumulation and radiation use efficiency in spring wheat and its role in yield potential
dc.typeArticle
dc.typePublished Version
dc.coverageUnited Kingdom


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