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dc.contributorSanguineti, Maria C.en_US
dc.contributorDemontis, Andreaen_US
dc.contributorEl-Ahmed, Ahmeden_US
dc.contributorDel Moral, Luis Garciaen_US
dc.contributorMaalouf, Fouaden_US
dc.contributorMiloudi, Nachiten_US
dc.contributorNserallah, Nasserlehaqen_US
dc.contributorOuabbou, Hassanen_US
dc.contributorRhouma, Sayaren_US
dc.contributorRoyo, Conxitaen_US
dc.contributorTort Dolors, Villegasen_US
dc.contributorTuberosa, Robertoen_US
dc.creatorMaccaferri, Marcoen_US
dc.identifier.citationMarco Maccaferri, Maria C. Sanguineti, Andrea Demontis, Ahmed El-Ahmed, Luis Garcia Del Moral, Fouad Maalouf, Nachit Miloudi, Nasserlehaq Nserallah, Hassan Ouabbou, Sayar Rhouma, Conxita Royo, Villegas Tort Dolors, Roberto Tuberosa. (1/11/2010). Association mapping in durum wheat grown across a broad range of water regimes. Journal of Experimental Botany, 62 (2), pp. 409-438.en_US
dc.description.abstractAssociation mapping was used to dissect the genetic basis of drought-adaptive traits and grain yield (GY) in a collection of 189 elite durum wheat accessions evaluated in 15 environments highly different for water availability during the crop cycle (from 146 to 711 mm) and GY (from 9.9 to 67.3 q ha(-1)). For highly heritable traits (e.g. heading date, kernel weight, etc.) several significant experiment-wise marker-trait associations were detected across five or more (up to 13 for kernel weight) environments, with R-2 values ranging from ca. 5 to 10%. As to GY, significant associations (R-2 from 2.5 to 4.2%) were mostly detected in one environment only (56 markers), while decreasing rapidly from two to five environments (from 20 to three markers, respectively) and with only one marker (Xbarc197 on chr. 5A) found significant in six environments (ranging from low- to high-yielding). These results are probably due to the complex genetic basis of GY and its interaction with environmental conditions. The number of markers significantly affecting GY decreased considerably under drought conditions, suggesting a limited effectiveness of association mapping to identify loci for GY under low-moisture conditions, most likely because different genotypes can attain similar phenotypes via different morpho-physiological traits and corresponding gene networks. Our study confirmed the role of major loci for phenology previously described in biparental mapping populations, highlighted a novel set of loci for drought-adaptive traits, and provided information on the agronomic value of the alleles at such loci across a broad range of soil moisture conditions.en_US
dc.publisherOxford University Press (OUP)en_US
dc.rightsCopyrighted; Non-commercial educational use onlyen_US
dc.sourceJournal of Experimental Botany;62,(2010) Pagination 409,438en_US
dc.subjectassociation mappingen_US
dc.subjectgrain yielden_US
dc.subjectwater regimesen_US
dc.subjectDurum Wheaten_US
dc.titleAssociation mapping in durum wheat grown across a broad range of water regimesen_US
dc.typeJournal Articleen_US
cg.creator.idMaalouf, Fouad: 0000-0002-7642-7102en_US
cg.subject.agrovocyield componentsen_US
cg.subject.agrovocdurum (triticum durum)en_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUniversity of Bologna - UNIBOen_US
cg.contributor.centerSocieta Produttori Sementi SpAen_US
cg.contributor.centerUniversity of Aleppoen_US
cg.contributor.centerUniversity of Granada - UGRen_US
cg.contributor.centerLebanese Agricultural Research Institute - LARIen_US
cg.contributor.centerNational Institute of Agronomic Research, Regional center in Kenitra - INRA - CRRAen_US
cg.contributor.centerNational Agronomic Institute of Tunisia - INATen_US
cg.contributor.centerInstitute for Food and Agricultural Research and Technology - IRTAen_US
cg.contributor.funderEuropean Union - EU Belgiumen_US
cg.contributor.funderItalian Ministero Politiche Agricole Alimentari e Forestalien_US
cg.contributor.funderSpanish Ministry of Education and Scienceen_US
cg.contributor.funderUniversity of Bologna, Interdepartmental Centre for Biotechnology - UNIBO - ICfBen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
dc.identifier.statusOpen accessen_US

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