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dc.contributor.authorAsif, Muhammad A.
dc.contributor.authorSchilling, Rhiannon K.
dc.contributor.authorTilbrook, Joanne
dc.contributor.authorBrien, Chris
dc.contributor.authorDowling, Kate
dc.contributor.authorRabie, Huwaida
dc.contributor.authorShort, Laura
dc.contributor.authorTrittermann, Christine
dc.contributor.authorGarcia, Alexandre
dc.contributor.authorBarrett-Lennard, Edward G.
dc.contributor.authorBerger, Bettina
dc.contributor.authorMather, Diane E.
dc.contributor.authorGilliham, Matthew
dc.contributor.authorFleury, Delphine
dc.contributor.authorTester, Mark A.
dc.contributor.authorRoy, Stuart J.
dc.contributor.authorPearson, Allison S.
dc.date.accessioned2018-09-26T13:29:03Z
dc.date.available2018-09-26T13:29:03Z
dc.date.issued2018-07-30
dc.identifier.citationAsif MA, Schilling RK, Tilbrook J, Brien C, Dowling K, et al. (2018) Mapping of novel salt tolerance QTL in an Excalibur × Kukri doubled haploid wheat population. Theoretical and Applied Genetics 131: 2179–2196. Available: http://dx.doi.org/10.1007/s00122-018-3146-y.
dc.identifier.issn0040-5752
dc.identifier.issn1432-2242
dc.identifier.doi10.1007/s00122-018-3146-y
dc.identifier.urihttp://hdl.handle.net/10754/628782
dc.description.abstractKey messageNovel QTL for salinity tolerance traits have been detected using non-destructive and destructive phenotyping in bread wheat and were shown to be linked to improvements in yield in saline fields.AbstractSoil salinity is a major limitation to cereal production. Breeding new salt-tolerant cultivars has the potential to improve cereal crop yields. In this study, a doubled haploid bread wheat mapping population, derived from the bi-parental cross of Excalibur × Kukri, was grown in a glasshouse under control and salinity treatments and evaluated using high-throughput non-destructive imaging technology. Quantitative trait locus (QTL) analysis of this population detected multiple QTL under salt and control treatments. Of these, six QTL were detected in the salt treatment including one for maintenance of shoot growth under salinity (QG(1–5).asl-7A), one for leaf Na+ exclusion (QNa.asl-7A) and four for leaf K+ accumulation (QK.asl-2B.1, QK.asl-2B.2, QK.asl-5A and QK:Na.asl-6A). The beneficial allele for QG(1–5).asl-7A (the maintenance of shoot growth under salinity) was present in six out of 44 mainly Australian bread and durum wheat cultivars. The effect of each QTL allele on grain yield was tested in a range of salinity concentrations at three field sites across 2 years. In six out of nine field trials with different levels of salinity stress, lines with alleles for Na+ exclusion and/or K+ maintenance at three QTL (QNa.asl-7A, QK.asl-2B.2 and QK:Na.asl-6A) excluded more Na+ or accumulated more K+ compared to lines without these alleles. Importantly, the QK.asl-2B.2 allele for higher K+ accumulation was found to be associated with higher grain yield at all field sites. Several alleles at other QTL were associated with higher grain yields at selected field sites.
dc.description.sponsorshipThis project was funded by the Grains Research and Development Corporation (GRDC): Project UA00118 to MT, SJR; UA00145 to SJR, BB, MG and EGB-L; and UA00159 to SJR and MG. We also acknowledge the South Australian growers and Cunderdin Agricultural College, Western Australia who provided land for field trials, South Australian Research and Development Institute (SARDI) new varieties agronomy team, Kalyx Australia and Mr. David Farleigh (DPIRD), Mr. Rob Jeffrey (UWA), Dr. Louis Mayer (UWA), Dr. Victoria Marchesini (UWA), Dr. Christa Niemietz (UofA), Dr. Jiaen Qiu (UofA) and Mr. Nigel Schilling (UofA) for field trial assistance, and The Plant Accelerator® staff who assisted with the glasshouse experiments. The Plant Accelerator®, Australian Plant Phenomics Facility, is funded under the National Collaborative Research Infrastructure Strategy (NCRIS). The bread wheat genome assembly was accessed through the International Wheat Genome Sequencing Consortium at https://wheat-urgi.versailles.inra.fr/Seq-Repository/Assemblies. MAA thanks the University of Adelaide for Adelaide Scholarships International (ASI) and the Australian Centre for Plant Functional Genomics for his PhD stipend, also acknowledged the financial support from the Australian Society of Plant Scientists (ASPS), the Crop Science Society of South Australia Incorporated and the Plant Nutrition Trust to attend conferences. MT thanks King Abdullah University of Science and Technology (KAUST) for financial support.
dc.publisherSpringer Nature
dc.relation.urlhttp://link.springer.com/article/10.1007/s00122-018-3146-y
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleMapping of novel salt tolerance QTL in an Excalibur × Kukri doubled haploid wheat population
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentDesert Agriculture Initiative
dc.contributor.departmentPlant Science
dc.identifier.journalTheoretical and Applied Genetics
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionSchool of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, Australia
dc.contributor.institutionAustralian Centre for Plant Functional Genomics, Glen Osmond, Australia
dc.contributor.institutionPlant Industries Development, Department of Primary Industry and Resources, Darwin, Australia
dc.contributor.institutionPhenomics and Bioinformatics Research Center, The University of South Australia, Mawson Lakes, Australia
dc.contributor.institutionThe Plant Accelerator, Australian Plant Phenomics Facility, The University of Adelaide, Urrbrae, Australia
dc.contributor.institutionBethlehem University, Bethlehem, Palestine
dc.contributor.institutionDepartment of Primary Industries and Regional Development, South Perth, Australia
dc.contributor.institutionSchool of Agriculture and Environment (M084), The University of Western Australia, Crawley, Australia
dc.contributor.institutionARC Centre of Excellence in Plant Energy Biology, The University of Adelaide, Glen Osmond, Australia
kaust.personTester, Mark A.
refterms.dateFOA2018-09-27T07:43:41Z
dc.date.published-online2018-07-30
dc.date.published-print2018-10


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This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Except where otherwise noted, this item's license is described as This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.