Integrated multivariate and univariate analysis of circadian metabolomic signatures in yerba mate clones in a semi‐hydroponic system.

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dc.contributorTAMIRES O. MELO, UNIVERSIDADE FEDERAL DO PARANÁ
dc.contributorJOACHIM KOPKA, MAX‐PLANCK‐INSTITUT FÜR MOLEKULARE PFLANZENPHYSIOLOGIE
dc.contributorIVAR WENDLING, CNPF
dc.contributorALEXANDER ERBAN, MAX‐PLANCK‐INSTITUT FÜR MOLEKULARE PFLANZENPHYSIOLOGIE
dc.contributorFRANCISCO A. MARQUES, UNIVERSIDADE FEDERAL DO PARANÁ
dc.contributorFABRICIO AUGUSTO HANSEL, CNPF.
dc.creatorMELO, T. O.
dc.creatorKOPKA, J.
dc.creatorWENDLING, I.
dc.creatorERBAN, A.
dc.creatorMARQUES, F. A.
dc.creatorHANSEL, F. A.
dc.date2026-05-20T00:28:20Z
dc.date2026-05-20T00:28:20Z
dc.date2026-05-18
dc.date2026
dc.date.accessioned2026-07-07T03:35:23Z
dc.descriptionThis study presents an integrated multivariate and univariate analysis of circadian metabolomic signatures in Ilex paraguar-iensis (yerba mate) clones cultivated under semi-hydroponic conditions. Using repeated measures ANOVA–SimultaneousComponent Analysis (RM-ASCA+) and hierarchical clustering on principal components (HCPC), we explored clone-specificand photoperiod- dependent metabolic responses across light and dark phases, complemented by high-resolution timepointsampling (HRS) and targeted screening. Clone EC21 exhibited elevated levels of sugars, amino acids, and organic acids, sug-gesting a metabolic strategy adapted to saline stress and nocturnal energy demands. Photoperiod effects revealed circadianregulation of central carbon metabolites (e.g., glucose, fructose, maltose) and phenylpropanoid intermediates linked to bio-active compounds such as caffeoyl- quinic acids. Interaction effects highlighted metabolic plasticity, particularly in nitrogenassimilation, with compounds like 2- oxo-glutaric acid, glutamine, and ornithine showing clone- specific temporal patterns.Caffeine, a heritable and physiologically relevant metabolite, displayed distinct circadian profiles. EC24 accumulated caf-feine during the day, while EC21 peaked at night. This dynamic distribution, supported by allantoin patterns in caffeinecatabolism, suggests divergent nitrogen turnover strategies between clones. These findings underscore the importance ofgenotype selection and temporal regulation in optimizing yerba mate performance under semi-hydroponic systems. Thecombined use of RM-ASCA+ and univariate analysis proved to be a powerful approach for profiling metabolomic rhythms,offering valuable insights for breeding programs targeting bioactive compound enhancement, stress resilience, and meta-bolic efficiency.
dc.identifierPhysiologia Plantarum, v. 178, n. 3, 2026.
dc.identifier0031-9317
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1186934
dc.identifierhttps://doi.org/10.1111/ppl.70917
dc.identifier.urihttp://hdl.handle.net/123456789/438181
dc.languageeng
dc.rightsopenAccess
dc.subjectErva mate
dc.subjectIlex Paraguariensis
dc.subjectCultivo Hidropônico
dc.subjectClone
dc.subjectMelhoramento Genético Vegetal
dc.subjectYerba mate
dc.subjectHydroponics
dc.subjectClones
dc.subjectBreeding and Genetic Improvement
dc.titleIntegrated multivariate and univariate analysis of circadian metabolomic signatures in yerba mate clones in a semi‐hydroponic system.
dc.typeArtigo de periódico

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