Yield-related salinity tolerance traits identified in a nested association mapping (NAM) population of wild barley

Handle URI:
http://hdl.handle.net/10754/622035
Title:
Yield-related salinity tolerance traits identified in a nested association mapping (NAM) population of wild barley
Authors:
Saade, Stephanie; Maurer, Andreas; Shahid, Mohammed; Oakey, Helena; Schmöckel, Sandra M.; Negrão, Sónia; Pillen, Klaus; Tester, Mark A. ( 0000-0002-5085-8801 )
Abstract:
Producing sufficient food for nine billion people by 2050 will be constrained by soil salinity, especially in irrigated systems. To improve crop yield, greater understanding of the genetic control of traits contributing to salinity tolerance in the field is needed. Here, we exploit natural variation in exotic germplasm by taking a genome-wide association approach to a new nested association mapping population of barley called HEB-25. The large population (1,336 genotypes) allowed cross-validation of loci, which, along with two years of phenotypic data collected from plants irrigated with fresh and saline water, improved statistical power. We dissect the genetic architecture of flowering time under high salinity and we present genes putatively affecting this trait and salinity tolerance. In addition, we identify a locus on chromosome 2H where, under saline conditions, lines homozygous for the wild allele yielded 30% more than did lines homozygous for the Barke allele. Introgressing this wild allele into elite cultivars could markedly improve yield under saline conditions. © 2016 The Author(s).
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Saade S, Maurer A, Shahid M, Oakey H, Schmöckel SM, et al. (2016) Yield-related salinity tolerance traits identified in a nested association mapping (NAM) population of wild barley. Scientific Reports 6: 32586. Available: http://dx.doi.org/10.1038/srep32586.
Publisher:
Springer Nature
Journal:
Scientific Reports
Issue Date:
2-Sep-2016
DOI:
10.1038/srep32586
Type:
Article
ISSN:
2045-2322
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) and the German Research Foundation (DFG) via the priority program 1530: Flowering time control - from natural variation to crop improvement (Grant Pi339/7-1), via ERA-CAPS (Grant Pi339/8-1) and from funds from the Interdisciplinary Centre for Crop Plant Research (IZN), Halle, Germany. We are grateful to TraitGenetics GmbH, Gatersleben, Germany, for genotyping HEB-25 with the Infinium iSelect 9 k SNP chip. We thank Dr. Ibrahim Salah for his contributions to the design of the experiment in the field. The ICBA team is gratefully acknowledged for managing and phenotyping the field experiments in 2013–2014 and 2014–2015.
Additional Links:
http://www.nature.com/articles/srep32586
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSaade, Stephanieen
dc.contributor.authorMaurer, Andreasen
dc.contributor.authorShahid, Mohammeden
dc.contributor.authorOakey, Helenaen
dc.contributor.authorSchmöckel, Sandra M.en
dc.contributor.authorNegrão, Sóniaen
dc.contributor.authorPillen, Klausen
dc.contributor.authorTester, Mark A.en
dc.date.accessioned2016-12-18T13:36:59Z-
dc.date.available2016-12-18T13:36:59Z-
dc.date.issued2016-09-02en
dc.identifier.citationSaade S, Maurer A, Shahid M, Oakey H, Schmöckel SM, et al. (2016) Yield-related salinity tolerance traits identified in a nested association mapping (NAM) population of wild barley. Scientific Reports 6: 32586. Available: http://dx.doi.org/10.1038/srep32586.en
dc.identifier.issn2045-2322en
dc.identifier.doi10.1038/srep32586en
dc.identifier.urihttp://hdl.handle.net/10754/622035-
dc.description.abstractProducing sufficient food for nine billion people by 2050 will be constrained by soil salinity, especially in irrigated systems. To improve crop yield, greater understanding of the genetic control of traits contributing to salinity tolerance in the field is needed. Here, we exploit natural variation in exotic germplasm by taking a genome-wide association approach to a new nested association mapping population of barley called HEB-25. The large population (1,336 genotypes) allowed cross-validation of loci, which, along with two years of phenotypic data collected from plants irrigated with fresh and saline water, improved statistical power. We dissect the genetic architecture of flowering time under high salinity and we present genes putatively affecting this trait and salinity tolerance. In addition, we identify a locus on chromosome 2H where, under saline conditions, lines homozygous for the wild allele yielded 30% more than did lines homozygous for the Barke allele. Introgressing this wild allele into elite cultivars could markedly improve yield under saline conditions. © 2016 The Author(s).en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) and the German Research Foundation (DFG) via the priority program 1530: Flowering time control - from natural variation to crop improvement (Grant Pi339/7-1), via ERA-CAPS (Grant Pi339/8-1) and from funds from the Interdisciplinary Centre for Crop Plant Research (IZN), Halle, Germany. We are grateful to TraitGenetics GmbH, Gatersleben, Germany, for genotyping HEB-25 with the Infinium iSelect 9 k SNP chip. We thank Dr. Ibrahim Salah for his contributions to the design of the experiment in the field. The ICBA team is gratefully acknowledged for managing and phenotyping the field experiments in 2013–2014 and 2014–2015.en
dc.publisherSpringer Natureen
dc.relation.urlhttp://www.nature.com/articles/srep32586en
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleYield-related salinity tolerance traits identified in a nested association mapping (NAM) population of wild barleyen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalScientific Reportsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionInstitute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Betty-Heimann-Str. 3, Halle, Germanyen
dc.contributor.institutionInternational Center for Biosaline Agriculture (ICBA), Dubai, United Arab Emiratesen
kaust.authorSaade, Stephanieen
kaust.authorOakey, Helenaen
kaust.authorSchmöckel, Sandra M.en
kaust.authorNegrão, Sóniaen
kaust.authorTester, Mark A.en
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