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dc.contributorSee, Devenen_US
dc.contributorD. Meyer, Fletcheren_US
dc.contributorGarner, John Pen_US
dc.contributorFoster, Curt Ren_US
dc.contributorK. Blake, Tomen_US
dc.contributorM. Fischer, Andreasen_US
dc.creatorMickelson, Suzanneen_US
dc.identifier.citationSuzanne Mickelson, Deven See, Fletcher D. Meyer, John P Garner, Curt R Foster, Tom K. Blake, Andreas M. Fischer. (1/2/2003). Mapping of QTL associated with nitrogen storage and remobilization in barley (Hordeum vulgare L. ) leaves. Journal of Experimental Botany, 54 (383), pp. 801-812.en_US
dc.description.abstractNitrogen uptake and metabolism are central for vegetative and reproductive plant growth. This is reflected by the fact that nitrogen can be remobilized and reused within a plant, and this process is crucial for yield in most annual crops. A population of 146 recombinant inbred barley lines (F8 and F9 plants, grown in 2000 and 2001), derived from a cross between two varieties differing markedly in grain protein concentration, was used to compare the location of QTL associated with nitrogen uptake, storage and remobilization in flag leaves relative to QTL controlling developmental parameters and grain protein accumulation. Overlaps of support intervals for such QTL were found on several chromosomes, with chromosomes 3 and 6 being especially important. For QTL on these chromosomes, alleles associated with inefficient N remobilization were associated with depressed yield and higher levels of total or soluble organic nitrogen during grain filling and vice versa; therefore, genes directly involved in N recycling or genes regulating N recycling may be located on these chromosomes. Interestingly, the most prominent QTL for grain protein concentration (on chromosome 6) did not co‐localize with QTL for nitrogen remobilization. However, QTL peaks for nitrate and soluble organic nitrogen were detected at this locus for plants grown in 2001 (but not in 2000). For these, alleles associated with low grain protein concentration were associated with higher soluble nitrogen levels in leaves during grain filling; therefore, gene(s) found at this locus might influence the nitrogen sink strength of developing barley grains.en_US
dc.publisherOxford University Press (OUP)en_US
dc.rightsCopyrighted; all rights reserveden_US
dc.sourceJournal of Experimental Botany;54,(2003) Pagination 801-812en_US
dc.subjecthordeum vulgare len_US
dc.subjectgrain protein concentrationen_US
dc.subjectnitrogen remobilizationen_US
dc.subjectnitrogen storageen_US
dc.titleMapping of QTL associated with nitrogen storage and remobilization in barley (Hordeum vulgare L.) leavesen_US
dc.typeJournal Articleen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerKansas State University - KSUen_US
cg.contributor.centerMontana State Universityen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_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
cg.isijournalISI Journalen_US
dc.identifier.statusOpen accessen_US
cg.journalJournal of Experimental Botanyen_US

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