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dc.contributor.author
Schierenbeck, Matías
dc.contributor.author
Alqudah, Ahmad M.
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Thabet, Samar G.
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Lohwasser, Ulrike
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Simón, María Rosa
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Börner, Andreas
dc.date.available
2024-01-03T14:58:38Z
dc.date.issued
2023-02
dc.identifier.citation
Schierenbeck, Matías; Alqudah, Ahmad M.; Thabet, Samar G.; Lohwasser, Ulrike; Simón, María Rosa; et al.; Association mapping unravels the genetics controlling seedling drought stress tolerance in winter wheat; Frontiers Media; Frontiers in Plant Science; 14; 2-2023; 1-13
dc.identifier.uri
http://hdl.handle.net/11336/222302
dc.description.abstract
Drought is a major constraint in wheat (Triticum aestivum L.) grain yield. The present work aimed to identify quantitative trait nucleotides (QTNs)/ candidate genes influencing drought tolerance-related traits at the seedling stage in 261 accessions of a diverse winter wheat panel. Seeds from three consecutive years were exposed to polyethylene glycol 12% (PEG-6000) and a control treatment (distilled water). The Farm-CPU method was used for the association analysis with 17,093 polymorphic SNPs. PEG treatment reduced shoot length (SL) (-36.3%) and root length (RL) (-11.3%) compared with control treatments, while the coleoptile length (CL) was increased by 11% under drought conditions, suggesting that it might be considered as an indicator of stress-tolerance. Interestingly, we revealed 70 stable QTN across 17 chromosomes. Eight QTNs related to more than one trait were detected on chromosomes 1B, 2A (2), 2B, 2D, 4B, 7A, and 7B and located nearby or inside candidate genes within the linkage disequilibrium (LD) interval. For instance, the QTN on chromosome 2D is located inside the gene TraesCS2D02G133900 that controls the variation of CL_S and SL_C. The allelic variation at the candidate genes showed significant influence on the associated traits, demonstrating their role in controlling the natural variation of multi-traits of drought stress tolerance. The gene expression of these candidate genes under different stress conditions validates their biological role in stress tolerance. Our findings offer insight into understanding the genetic factors and diverse mechanisms in response to water shortage conditions that are important for wheat improvement and adaptation at early developmental stages.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Media
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
BREEDING
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CANDIDATE GENES
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DROUGHT TOLERANCE
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FARMCPU
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GWAS
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PEG
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SEEDLING
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WINTER WHEAT
dc.subject.classification
Agronomía, reproducción y protección de plantas
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Association mapping unravels the genetics controlling seedling drought stress tolerance in winter wheat
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-27T17:44:51Z
dc.identifier.eissn
1664-462X
dc.journal.volume
14
dc.journal.pagination
1-13
dc.journal.pais
Suiza
dc.description.fil
Fil: Schierenbeck, Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Leibniz Institute of Plant Genetics and Crop Plant Research; Alemania. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina
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Fil: Alqudah, Ahmad M.. Qatar University; Qatar
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Fil: Thabet, Samar G.. Fayoum University; Egipto
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Fil: Lohwasser, Ulrike. Leibniz Institute of Plant Genetics and Crop Plant Research; Alemania
dc.description.fil
Fil: Simón, María Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina
dc.description.fil
Fil: Börner, Andreas. Leibniz Institute of Plant Genetics and Crop Plant Research; Alemania
dc.journal.title
Frontiers in Plant Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fpls.2023.1061845/full
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fpls.2023.1061845
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