G
Gerald Siegwart
Researcher at University of Natural Resources and Life Sciences, Vienna
Publications - 5
Citations - 321
Gerald Siegwart is an academic researcher from University of Natural Resources and Life Sciences, Vienna. The author has contributed to research in topics: Gene & Quantitative trait locus. The author has an hindex of 5, co-authored 5 publications receiving 265 citations.
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Transcriptomic characterization of two major Fusarium resistance quantitative trait loci (QTLs), Fhb1 and Qfhs.ifa‐5A, identifies novel candidate genes
Wolfgang Schweiger,Barbara Steiner,Christian Ametz,Gerald Siegwart,Gerlinde Wiesenberger,Franz Berthiller,Marc Lemmens,Haiyan Jia,Gerhard Adam,Gary J. Muehlbauer,David P. Kreil,David P. Kreil,Hermann Buerstmayr +12 more
TL;DR: A uridine diphosphate (UDP)‐glycosyltransferase gene, designated TaUGT12887, exhibiting a positive difference in response to the pathogen in lines harbouring both QTLs relative to lines carrying only the Qfhs.ifa‐5A resistance allele is identified, suggesting Fhb1 dependence of this transcript.
Journal ArticleDOI
Suppressed recombination and unique candidate genes in the divergent haplotype encoding Fhb1, a major Fusarium head blight resistance locus in wheat
Wolfgang Schweiger,Barbara Steiner,Sonia Vautrin,Thomas Nussbaumer,Gerald Siegwart,M. Zamini,F. Jungreithmeier,V. Gratl,Marc Lemmens,Klaus F. X. Mayer,Hélène Bergès,Gerhard Adam,Hermann Buerstmayr +12 more
TL;DR: Fine mapping and sequencing revealed that the region of Fhb1 deviates from the Chinese Spring reference in DNA size and gene content, which explains the repressed recombination at the locus in the performed fine mapping.
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Quantitative trait loci-dependent analysis of a gene co-expression network associated with Fusarium head blight resistance in bread wheat ( Triticum aestivum L.)
Karl G. Kugler,Gerald Siegwart,Thomas Nussbaumer,Christian Ametz,Manuel Spannagl,Barbara Steiner,Marc Lemmens,Klaus F. X. Mayer,Hermann Buerstmayr,Wolfgang Schweiger +9 more
TL;DR: A combination of a network-driven approach and differential gene expression analysis identified genes and pathways associated with Fhb1 and Qfhs, which take prominent roles in the pathogen response.
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Joint Transcriptomic and Metabolomic Analyses Reveal Changes in the Primary Metabolism and Imbalances in the Subgenome Orchestration in the Bread Wheat Molecular Response to Fusarium graminearum
Thomas Nussbaumer,Benedikt Warth,Sapna Sharma,Christian Ametz,Christoph Bueschl,Alexandra Parich,Matthias Pfeifer,Gerald Siegwart,Barbara Steiner,Marc Lemmens,Rainer Schuhmacher,Hermann Buerstmayr,Klaus F. X. Mayer,Karl G. Kugler,Wolfgang Schweiger +14 more
TL;DR: Transcriptomics and metabolomics data are integrated to dissect the molecular response to the fungus and its main virulence factor, the toxin deoxynivalenol in near-isogenic lines segregating for two resistance quantitative trait loci, Fhb1 and Qfhs, and identify several genes that may contribute to increased pathogen endurance.
Journal ArticleDOI
Hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry for the quantification of uridine diphosphate-glucose, uridine diphosphate-glucuronic acid, deoxynivalenol and its glucoside: In-house validation and application to wheat.
TL;DR: It is proposed that the higher ability to detoxify DON into DON-3-Glc might be a consequence of the higher cellular UDP-glucose pool in the resistant cultivar, showing different resistance to the severe plant disease Fusarium head blight.