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Dr. Caroline Marcon


Research focus

My research interest is the identification of novel maize mutants by transposon mutagenesis. Forward and reverse genetics i.e., the generation of a mutant database are combined to discover mutant phenotypes, covering a multitude of plant traits.

Academic CV


  • Since 2012
    Research associate at the chair of Crop Functional Genomics, Institute of Crop Science and Resource Conservation, Faculty of Agriculture, Rheinische Friedrich-Wilhelm-University of Bonn

  • 2007 to 2012
    Dr. rer. nat. at the Center for Plant Molecular Biology (ZMBP), Department of General Genetics, University of Tübingen

  • 2001 to 2007
    Diploma, Biology, University of Tübingen

Other function

  • Deputy of Biological Safety (BBS) at the University of Bonn

  • Coordinator of maize seed storage and external distribution

  • Contact person for field and green house experiments

  • Supervising Master students studying “Nutzpflanzenwissenschaften” at the University of Bonn, in following courses:

    • Molecular crop science I and II
    • Molecular aspects of cereal development
    • Concepts of genetics
    • Theoretical and applied aspects of genetic, transcriptomic and proteomic analyses



  • Stöcker T, Altrogge L, Marcon C, Win YN, Hochholdinger F, Schoof H (2022) MuWU: Mu-seq library analysis and annotation. Bioinformatics 38: 837-838. PubMed


  • Marcon C, Altrogge L, Win Y, Stöcker T, Gardiner J, Portwood J, Opitz N, Kortz A, Baldauf J, Hunter C, McCarty D, Koch K, Schoof H, Hochholdinger F (2020) BonnMu: a sequence-indexed resource of transposon induced maize mutations for functional genomics studies. Plant Physiol 184: 620-631. PubMed Free Article

  • Haberer G, Kamal N, Bauer E, Gundlach H, Fischer I, Seidel MA, Spannagl M, Marcon C, Ruban A, Urbany C, Nemri A, Hochholdinger, F, Ouzunova, M, Houben A, Schön C-C, Mayer KFX (2020) European maize genomes highlight intra-species variation in repeat and gene content. Nature Genet 52: 950–957. PubMed Free PMC Article

  • Vetterlein D, Lippold E, Schreiter S, Phalempin M, Fahrenkampf T, Hochholdinger F, Marcon C, Tarkka M, Oburger E, Ahmed M, Javaux M, Schlüter S (2020) Experimental platforms for the investigation of spatiotemporal patterns in the rhizosphere - laboratory and field scale. J Plant Nutr Soil Sc, in press.


  • Baldauf J, Marcon C, Lithio A, Vedder L, Altrogge L, Piepho H-P, Schoof H, Nettleton D, Hochholdinger F (2018) Single-parent expression is a general mechanism that drives extensive complementation of non-syntenic genes in maize (Zea mays L.) hybrids. Current Biol 28: 431-437.  PubMed  Free Article

  • Hochholdinger F, Marcon C, Baldauf J, Frey F, Yu P (2018) Proteomics of Maize Root Development. Front Plant Sci 9: 143.  PubMed  Free PMC Article

  • Hochholdinger F, Yu P, Marcon C (2018) Genetic control of root system development in maize. Trends in Plant Sci 23:79-88.  PubMed

  • Yu P, Marcon C, Baldauf JA, Frey F, Baer M, Hochholdinger F (2018) Transcriptomic dissection of maize root system development. Compendium of plant genomes: The Zea mays Genome. 1st ed. (eds. J. Bennetzen, S. Flint-Garcia, C. Hirsch and R. Tuberosa) pp. 247-257. Springer Nature.


  • Marcon C, Paschold A, Malik WA, Lithio A, Baldauf JA, Altrogge L, Opitz N, Lanz C, Schoof H, Nettleton D, Piepho H-P, Hochholdinger F (2017) Stability of single parent gene expression complementation in maize hybrids upon water deficit stress. Plant Physiol 173: 1247-1257.  PubMed  Free Article

  • Unterseer S, Seidel MA, Bauer E, Haberer G, Hochholdinger F, Opitz N, Marcon C, Baruch K, Spannagl M, Mayer KFX, Schön C-C (2017) European Flint reference sequences complement the maize pan-genome. bioRxiv 103747.


  • Baldauf JA, Marcon C, Paschold A, Hochholdinger F (2016) Nonsyntenic genes drive tissue-specific dynamics of differential, nonadditive and allelic expression patterns in maize hybrids. Plant Physiol 171: 159-167.  PubMed Free PMC Article

  • Yu P, Baldauf JA, Lithio A, Marcon C, Nettleton D, Li C, Hochholdinger F (2016) Root type specific reprogramming of maize pericycle transcriptomes by local high nitrate results in disparate lateral root branching patterns. Plant Physiol 170: 1783-98.  PubMed  Free PMC Article

  • Marcon C, Baldauf JA, Hochholdinger F (2016) Komplementation von Genexpressionsmustern in Maishybriden. Biospektrum 22: 603-605.

  • Li L, Hey S, Liu S, Liu Q, McNinch C, Hu HC, Wen TJ, Marcon C, Paschold A, Bruce W, Schnable PS, Hochholdinger F (2016) Characterization of maize roothairless6 which encodes a D-type cellulose synthase and controls the switch from bulge formation to tip growth. Sci Rep 6: 34395. Free Article

  • Zhang Y, Marcon C, Tai H, von Behrens I, Ludwig Y, Hey S, Berendzen KW, Hochholdinger F (2016) Conserved and unique features of the homeologous maize Aux/IAA proteins ROOTLESS WITH UNDETECTABLE MERISTEM 1 and RUM1-like 1. J Exp Bot 67: 1137-47.  PubMed  Free PMC Article

  • Tai H, Lu X, Opitz N, Marcon C, Paschold A, Lithio A, Nettleton D, Hochholdinger F (2016) Transcriptomic and anatomic complexity of primary, seminal and crown roots highlight root type-specific functional diversity in maize (Zea mays L.). J Exp Bot 67: 1123-35.  PubMed  Free PCM Article

  • Opitz N, Marcon C, Paschold A, Malik WA, Lithio A, Brandt R, Piepho H-P, Nettleton D, Hochholdinger F (2016) Extensive tissue-specific transcriptomic plasticity in maize primary roots upon water deficit. J Exp Bot 67: 1095-1107.  PubMed  Free PCM Article


  • Marcon C, Malik WA, Walley JW, Shen Z, Paschold A, Smith LG, Piepho H-P, Briggs SP, Hochholdinger F (2015) A high resolution tissue-specific proteome and phosphoproteome atlas of maize primary roots reveals functional gradients along the root axis. Plant Physiol 168: 233-246.  PubMed  Free PMC Article


  • Paschold A, Larson NB, Marcon C, Schnable JC, Yeh CT, Lanz C, Nettleton D, Piepho H-P, Schnable PS, Hochholdinger F (2014) Non-syntenic genes drive highly dynamic complementation of gene expression in maize hybrids. Plant Cell 26: 3939-3948.  PubMed  Free PMC Article

  • Opitz N, Paschold A, Marcon C, Malik WA, Lanz C, Piepho H-P, Hochholdinger F (2014) Transcriptomic complexity in young maize primary roots in response to low water potentials. BMC Genomics 15: 741.  PubMed  Free PMC Article

  • Nestler J, Liu S, Wen T-J, Paschold A, Marcon C, Tang HM, Li D, Li L, Meeley R, Sakai H, Bruce W, Schnable PS, Hochholdinger F (2014) Roothairless5, which functions in maize (Zea mays L.) root hair initiation and elongation encodes a monocot-specific NADPH oxidase. Plant J 79: 729-740.  PubMed

  • Zhang Y, Paschold A, Marcon C, Liu S, Tai H, Nestler J, Yeh CT, Opitz N, Lanz C, Schnable PS, Hochholdinger F (2014) The Aux/IAA gene rum1 involved in seminal and lateral root formation controls vascular patterning in maize (Zea mays L.)  primary roots. J Exp Bot 65: 4919-4930.  PubMed  Free PMC Article


  • Marcon C, Lamkemeyer T, Malik WA, Ungrue D, Piepho H-P, Hochholdinger F (2013) Heterosis-associated proteome analyses of maize (Zea mays L.) seminal rotts by quantitative label-free LC-MS. J Proteomics 93: 295-302. PubMed

  • Marcon C, Paschold A, Hochholdinger F (2013) Genetic control of root organogenesis in cereals. Meth Mol Biol 959: 69-81.  PubMed

  • Hochholdinger F, Paschold A, Marcon C (2013) Heterosis: Maishybride exprimieren mehr Gene als ihre Eltern. Biologie in unserer Zeit 43:11-12.


  • Paschold A, Jia Y, Marcon C, Lund S, Larson NB, Yeh CT, Ossowski S, Lanz C, Nettleton D, Schnable PS, Hochholdinger F (2012) Complementation contributes to transcriptome complexity in maize (Zea mays L.) hybrids relative to their inbred parents. Genome Res 22: 2445-2454.  PubMed


  • Marcon C, Schützenmeister A, Schütz W, Madlung J, Piepho H-P, Hochholdinger F (2010) Non-additive protein accumulation patterns in maize (Zea mays L.) hybrids during embryo development. J Proteome Res 9: 6511-6522.   PubMed

  • Paschold A, Marcon C, Hoecker N, Hochholdinger F (2010) Molecular dissection of heterosis manifestation during early maize root development. Theor Appl Genet 120: 383-388.  PubMed


  • Speth C, Jaspert N, Marcon C, Oecking C (2009) Regulation of the plant plasma membrane H+-ATPase by its C-terminal domain: what do we know for sure? Eur J Cell Biol 89: 145-151.  PubMed 


  • Ottmann C, Marco S, Jaspert N, Marcon C, Schauer N, Weyand M, Vandermeeren C, Duby G, Bountry M, Wittinghofer A, Rigaud JL, Oecking C (2007) Structure of a 14-3-3 coordinated hexamer of the plant plasma membrane H+-ATPase by combining X-ray crystallography and electron cryomicroscopy. Mol Cell 25: 427-440.  PubMed