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Impact of Soil Drought on Yield and Leaf Sugar Content in Wheat: Genotypic and Phenotypic Relationships Compared Using a Doubled Haploid Population

cris.lastimport.scopus2025-10-23T06:58:22Z
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dc.abstract.enImproving yield stability under water-limited conditions is a key objective of wheat breeding programmes. One trait of particular interest is carbohydrate accumulation and remobilisation. This study assessed the genetic basis of aspects of yield and flag leaf sugar contents under drought and well-watered conditions using QTL mapping in a population of 90 doubled haploid lines derived from the cross Chinese Spring × SQ1. As well as soluble sugar content, glucose, fructose, sucrose, and maltose, the traits grain yield (Yld), biomass (Bio), and thousand grain weight (TGW) were also analysed. Analysis of variance showed that genotype, environment and their interactions significantly influenced all the traits studied, with environmental effects explaining up to 74.4% of the total variation. QTL analysis identified 40 QTLs for Yld, TGW, and Bio as well as 53 QTLs for soluble carbohydrates, accounting for up to 40% of phenotypic variation. QTLs coincident for more than one trait were identified on 21 chromosome regions, associated with carbohydrate metabolism and yield performance under drought, particularly on chromosomes 2D, 4A, 4B, 5B, 5D, 6B, and 7A. Candidate genes for several yield-related QTLs were identified. These results provide useful genetic markers for the development of more drought-resistant wheat cultivars.
dc.affiliationWydział Rolnictwa, Ogrodnictwa i Biotechnologii
dc.affiliation.instituteKatedra Metod Matematycznych i Statystycznych
dc.contributor.authorGrela, Magdalena
dc.contributor.authorQuarrie, Steve
dc.contributor.authorCyganek, Katarzyna
dc.contributor.authorBocianowski, Jan
dc.contributor.authorKarbarz, Małgorzata
dc.contributor.authorTyrka, Mirosław
dc.contributor.authorHabash, Dimah
dc.contributor.authorDziurka, Michał
dc.contributor.authorKowalczyk, Edyta
dc.contributor.authorSzarski, Wojciech
dc.contributor.authorCzyczyło-Mysza, Ilona Mieczysława
dc.date.access2025-09-22
dc.date.accessioned2025-09-30T12:39:52Z
dc.date.available2025-09-30T12:39:52Z
dc.date.copyright2025-08-13
dc.date.issued2025
dc.description.abstract<jats:p>Improving yield stability under water-limited conditions is a key objective of wheat breeding programmes. One trait of particular interest is carbohydrate accumulation and remobilisation. This study assessed the genetic basis of aspects of yield and flag leaf sugar contents under drought and well-watered conditions using QTL mapping in a population of 90 doubled haploid lines derived from the cross Chinese Spring × SQ1. As well as soluble sugar content, glucose, fructose, sucrose, and maltose, the traits grain yield (Yld), biomass (Bio), and thousand grain weight (TGW) were also analysed. Analysis of variance showed that genotype, environment and their interactions significantly influenced all the traits studied, with environmental effects explaining up to 74.4% of the total variation. QTL analysis identified 40 QTLs for Yld, TGW, and Bio as well as 53 QTLs for soluble carbohydrates, accounting for up to 40% of phenotypic variation. QTLs coincident for more than one trait were identified on 21 chromosome regions, associated with carbohydrate metabolism and yield performance under drought, particularly on chromosomes 2D, 4A, 4B, 5B, 5D, 6B, and 7A. Candidate genes for several yield-related QTLs were identified. These results provide useful genetic markers for the development of more drought-resistant wheat cultivars.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographybibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if4,9
dc.description.number16
dc.description.points140
dc.description.versionfinal_published
dc.description.volume26
dc.identifier.doi10.3390/ijms26167833
dc.identifier.eissn1422-0067
dc.identifier.issn1661-6596
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5092
dc.identifier.weblinkhttps://www.mdpi.com/1422-0067/26/16/7833
dc.languageen
dc.relation.ispartofInternational Journal of Molecular Sciences
dc.relation.pagesart. 7833
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enQTL
dc.subject.endrought
dc.subject.enagronomic traits—yield
dc.subject.enbiomass
dc.subject.enTGW
dc.subject.encarbohydrates
dc.subject.enDH population
dc.subject.enTriticum aestivum
dc.titleImpact of Soil Drought on Yield and Leaf Sugar Content in Wheat: Genotypic and Phenotypic Relationships Compared Using a Doubled Haploid Population
dc.title.volumeSpecial Issue Molecular Mechanisms of Plant Abiotic Stress Tolerance: 2nd Edition
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue16
oaire.citation.volume26