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Identification of quantitative trait loci associated with nitrogen use efficiency in winter wheat

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dc.contributor.authorBrasier, Kyle G.en
dc.contributor.authorWard, Brian P.en
dc.contributor.authorSmith, Jareden
dc.contributor.authorSeago, John E.en
dc.contributor.authorOakes, Joseph C.en
dc.contributor.authorBalota, Mariaen
dc.contributor.authorDavis, Paul H.en
dc.contributor.authorFountain, Myron O.en
dc.contributor.authorBrown-Guedira, Gina L.en
dc.contributor.authorSneller, Clay H.en
dc.contributor.authorThomason, Wade E.en
dc.contributor.authorGriffey, Carl A.en
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.contributor.departmentVirginia Agricultural Experiment Stationen
dc.date.accessioned2021-03-31T12:23:44Zen
dc.date.available2021-03-31T12:23:44Zen
dc.date.issued2020-02-24en
dc.description.abstractMaintaining winter wheat (Triticum aestivum L.) productivity with more efficient nitrogen (N) management will enable growers to increase profitability and reduce the negative environmental impacts associated with nitrogen loss. Wheat breeders would therefore benefit greatly from the identification and application of genetic markers associated with nitrogen use efficiency (NUE). To investigate the genetics underlying N response, two bi-parental mapping populations were developed and grown in four site-seasons under low and high N rates. The populations were derived from a cross between previously identified high NUE parents (VA05W-151 and VA09W-52) and a shared common low NUE parent, 'Yorktown.' The Yorktown x VA05W-151 population was comprised of 136 recombinant inbred lines while the Yorktown x VA09W-52 population was comprised of 138 doubled haploids. Phenotypic data was collected on parental lines and their progeny for 11 N-related traits and genotypes were sequenced using a genotyping-by-sequencing platform to detect more than 3,100 high quality single nucleotide polymorphisms in each population. A total of 130 quantitative trait loci (QTL) were detected on 20 chromosomes, six of which were associated with NUE and N-related traits in multiple testing environments. Two of the six QTL for NUE were associated with known photoperiod (Ppd-D1 on chromosome 2D) and disease resistance (FHB-4A) genes, two were reported in previous investigations, and one QTL, QNue.151-1D, was novel. The NUE QTL on 1D, 6A, 7A, and 7D had LOD scores ranging from 2.63 to 8.33 and explained up to 18.1% of the phenotypic variation. The QTL identified in this study have potential for marker-assisted breeding for NUE traits in soft red winter wheat.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesFunding for this project was provided by the Virginia Small Grains Board (http://www.virginiagrains.com/leadership/va-small-grainsboard/) -KB and CG The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; Funding for this project was provided by the Virginia Small Grains Board. The authors would like to thank Anthony Christopher, Jon Light, Michelle Lee, Elizabeth Hokanson, Harry Behl and William Myers for assistance collecting field data and Steve Nagle for providing technical assistance in the analysis of tissue N concentration.en
dc.description.sponsorshipVirginia Small Grains Boarden
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0228775en
dc.identifier.issn1932-6203en
dc.identifier.issue2en
dc.identifier.othere0228775en
dc.identifier.pmid32092066en
dc.identifier.urihttp://hdl.handle.net/10919/102906en
dc.identifier.volume15en
dc.language.isoenen
dc.rightsPublic Domainen
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.titleIdentification of quantitative trait loci associated with nitrogen use efficiency in winter wheaten
dc.title.serialPLoS Oneen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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