Juergen Kroymann

Position: Senior Scientist CNRS

Team: Evolutionary Genetics and Ecology

Contact details:
Laboratoire Écologie, Systématique et Évolution – IDEEV
Bureau 2329 Bât. 680 – 12, route 128
91190 Gif Sur Yvette

Tel: +33 (0)1 69 15 56 67

Fax: +33 (0)1 69 15 46 97

Email: juergen.kroymann (at) universite-paris-saclay.fr

Laboratoire Ecologie, Systématique et Evolution

Research interests

Function, Ecology and Evolution of Plant Specialized Metabolism in the Brassicales; Plant-Insect Interactions; Host Plant Defenses and Insect Counteradaptations; Plant Adaptation to Extreme Environments; Function and Evolution of Multigene Families

Laboratoire Ecologie, Systématique et Evolution

Career path

  • 2012 – 2022:  Head of the GEE team
  • since 2009:  Senior scientist, CNRS
  • 2007:  Habilitation in Life Sciences, University Paris-South
  • 2007:  Invited professor, University Paris-South
  • 1998 – 2008:  Post-doc and Group leader, Max Planck Institute for Chemical Ecology
  • 1993 – 1997:  PhD thesis. University of Giessen
  • 1993:  Biology diploma, University of Giessen
Laboratoire Ecologie, Systématique et Evolution

Research projects

  • Host Plant Adaptation in Plutellid Moths (ANR/DFG, 2021-2024)
  • Evolutionary and Functional Genomics of Modified Indole Glucosinolate Biosynthesis (ANR, 2011 – 2015)
  • Expressed Sequence Tags of Toxic Algae (European Union, 2005 – 2007)
  • Quantification of Insect Resistance in Arabidopsis Ecotypes (German Federal Ministry for Science and Education, 2004 – 2006)
  • Comparative Evolutionary Analysis of Methylthioalkylmalate Synthase Genes and Enzymes in the Capparales (DFG, 2004 – 2009)
  • Mapping of QTLs for Heterosis and Identification of the Responsible Gene Loci in Arabidopsis (DFG, 2004 – 2005)
Laboratoire Ecologie, Systématique et Evolution


Mukhaimar M, Pfalz M, Shykoff J, Kroymann J. Natural genetic variation and negative density effects in plant-nematode interactions. Plant-Environ. Interact., in press.

Okamura Y, Sato A, Kawaguchi L, Nagano AJ, Murakami M, Vogel H, Kroymann J (2022). Microevolution of Pieris butterfly genes involved in host-plant adaptation along a host-plant community cline. Mol. Ecol. 31, 3083-3097.

Spielmann J, Hassan A, Scheepers M, Weber M, Nitsche S, Carnol M, Bosman B, Kroymann J, Motte P, Clemens S, Hanikenne M (2020). The two copies of the zinc and cadmium ZIP6 transporter of Arabidopsis halleri have distinct effects on cadmium tolerance and fertility. Plant Cell Environ. 43, 2143-2157.

Ouassou M, Mukhaimar M, El Amrani A, Kroymann J, Chauveau O (2019) Biosynthèse des glucosinolates indoliques et rôle écologique de leurs modifications secondaires. C. R. Biologies C. R. Biologies 342, 58-80.

Heidel-Fischer HM, Kirsch R, Reichelt M, Ahn SJ, Wielsch N, Baxter SW, Heckel DG, Vogel H, Kroymann J (2019) An insect counteradaptation against host plant defenses evolved through concerted neofunctionalization. Mol. Biol. Evol. 36, 930-941.

Pfalz M, Mukhaimar M, Perreau F, Kirk J, Hansen CIC, Olsen CE, Agerbirk N, Kroymann J (2016) Methyl transfer in glucosinolate biosynthesis mediated by indole glucosinolate O-methyltransferase 5. Plant Physiol. 172, 2190-2203.

de Marchi R, Sorel M, Mooney B, Fudal I, Goslin K, Kwa?niewska K, Ryan PT, Pfalz M, Kroymann J, Pollmann S, Feechan A, Wellmer F, Rivas S, Graciet E (2016) The ubiquitin-dependent N-end rule pathway regulates pathogen responses in plants. Scientific Reports 6: 26020.

Pentzold S, Zagrobelny M, Bjarnholt N, Kroymann J, Vogel H, Olsen CE, Møller BL, Bak S (2015) Metabolism, excretion and avoidance of plant cyanogenic glucosides in insects with different feeding specialisations. Insect Biochem. Molec., 66, 119-128.

Hanikenne M, Kroymann J, Trampczynska A, Bernal M, Motte P, Clemens S, Krämer U (2013) Hard selective sweep and ectopic gene conversion in a gene cluster affording environmental adaptation. PLOS Genetics 9: e1003707.

Jaeckisch N, Yang I, Wohlrab S, Glöckner G, Kroymann J, Vogel H, Cembella A, John U (2011) Comparative genomic and transcriptomics characterization of the toxigenic marine dinoflagellate Alexandrium ostenfeldii. PLOS ONE 6: e28012.

Kroymann J (2011) Natural diversity and adaptation in plant secondary metabolism. Curr. Opin. Plant Biol. 14, 246-251.

Pfalz M, Mikkelsen MD, Bednarek P, Olsen CE, Halkier BA, Kroymann J (2011) Metabolic engineering in Nicotiana benthamiana reveals key enzyme functions in Arabidopsis indole glucosinolate modification. Plant Cell 23, 716-729.

Pfalz M, Vogel H, Kroymann J (2009) The gene controlling the Indole Glucosinolate Modifier 1 QTL alters indole glucosinolate structures and aphid resistance in Arabidopsis. Plant Cell 21, 985-999.

Benderoth M, Pfalz M, Kroymann J (2009) Methylthioalkylmalate synthases: Genetics, ecology and evolution. Phytochem. Rev. 8, 255-268.

Hanikenne M, Talke IN, Haydon MJ, Lanz C, Nolte A, Motte P, Kroymann J, Weigel D, Krämer U (2008) Evolution of metal hyperaccumulation required cis-regulatory changes and triplication of HMA4. Nature 453, 391-395.

Oyama RK, Clauss MJ, Formanová N, Kroymann J, Schmid KJ, Vogel H, Weniger K, Windsor AJ, Mitchell-Olds T (2008) The shrunken genome of Arabidopsis thaliana. Plant Syst. Evol. 273, 257-271.

Böttcher C, Centeno D, Freitag J, Höfgen R, Köhl K, Kopka J, Kroymann J, Matros A, Mock HP, Neumann S, Pfalz M, von Roepenack-Lahaye E, Schauer N, Trenkamp S, Zubriggen M, Fernie AR (2008) Teaching (and learning from) metabolomics: The 2006 PlantMetaNet ETNA metabolomics research school. Physiol. Plant. 132, 136-149.

Vogel H, Kroymann J, Mitchell-Olds T (2007) Different transcript patterns in response to specialist and generalist herbivores in the wild Arabidopsis relative Boechera divaricarpa. PLOS ONE 2, e1081.

Pfalz M, Vogel H, Mitchell-Olds T, Kroymann J (2007) Mapping of QTL for resistance against the crucifer specialist insect herbivore Pieris brassicae in a new Arabidopsis recombinant inbred line population, Da(1)-12 × Ei-2. PLOS ONE 2, e578.

Benderoth M, Textor S, Windsor AJ, Mitchell-Olds T, Gershenzon J, Kroymann J (2006) Positive selection driving diversification in plant secondary metabolism. Proc. Natl. Acad. Sci. USA 103, 9118-9123.

Heidel AJ, Clauss M, Kroymann J, Savolainen O, Mitchell-Olds T (2006) Natural variation in MAM within and between populations of Arabidopsis lyrata determines glucosinolate phenotype. Genetics 173, 1629-1636.

Windsor AJ, Schranz ME, Formanová N, Gebauer-Jung S, Bishop JG, Schnabelrauch S, Kroymann J, Mitchell-Olds T (2006) Partial shotgun sequencing of the Boechera stricta genome reveals extensive microsynteny and promoter conservation with Arabidopsis thaliana. Plant Physiol. 140, 1169-1181.

Knight C, Vogel H, Kroymann J, Shumate A, Witsenboer H, Mitchell-Olds T (2006) Expression profiling and local adaptation of Boechera holboellii populations for water use efficiency across a naturally occurring water stress gradient. Mol. Ecol. 15, 1229-1237.

Voigt K, Cozijnsen AJ, Kroymann J, Pöggeler S, Howlett BJ (2005) Phylogenetic relationships between members of the crucifer pathogenic Leptosphaeria maculans species complex as shown by mating type (MAT1-2), actin and b-tubulin sequences. Mol. Phylo. Evol. 37, 541-557.

Kroymann J, Mitchell-Olds T (2005) Epistasis and balanced polymorphism influencing complex trait variation. Nature 435, 95-98.

Kliebenstein DJ, Kroymann J, Mitchell-Olds T (2005) The glucosinolate-myrosinase system in an ecological and evolutionary context. Curr. Opin. Plant Biol. 8, 264-271.

Windsor AJ, Reichelt M, Figuth A, Svatoš A, Kroymann J, Kliebenstein DJ, Gershenzon J, Mitchell-Olds T (2005) Geographic and evolutionary diversification of glucosinolates among near relatives of Arabidopsis thaliana (Brassicaceae). Phytochemistry 66, 1321-1333.

Textor S, Bartram S, Kroymann J, Falk KL, Hick A, Pickett JA, Gershenzon J (2004) Biosynthesis of methionine-derived glucosinolates in Arabidopsis thaliana: Recombinant expression and characterization of methylthioalkylmalate synthase, the condensing enzyme of the chain elongation cycle. Planta 218, 1026-1035.

Kroymann J, Donnerhacke S, Schnabelrauch D, Mitchell-Olds T (2003) Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus. Proc. Natl. Acad. Sci. USA 100, 14587-14592.

Ratzka A, Vogel H, Kliebenstein DJ, Mitchell-Olds T, Kroymann J (2002) Disarming the mustard oil bomb. Proc. Natl. Acad. Sci. USA 99, 11223-11228.

Haubold B, Kroymann J, Ratzka A, Mitchell-Olds T, Wiehe T (2002) Recombination and gene conversion in a 170 kb genomic region of Arabidopsis thaliana. Genetics 161, 1269-1278.

Koch MA, Weisshaar B, Kroymann J, Haubold B, Mitchell-Olds T (2001) Comparative genomics and regulatory evolution: conservation and function of the Chs and Apetala3 promoters. Mol. Biol. Evol. 18, 1882-1891.

Kroymann J, Textor S, Tokuhisa JG, Falk KL, Bartram S, Gershenzon J, Mitchell-Olds T (2001) A gene controlling variation in Arabidopsis thaliana glucosinolate composition is part of the methionine chain elongation pathway. Plant Physiol. 127, 1077-1088.

Kliebenstein DJ, Kroymann J, Brown PD, Figuth A, Pedersen D, Gershenzon J, Mitchell-Olds T (2001) Genetic control of natural variation in Arabidopsis thaliana glucosinolate accumulation. Plant Physiol. 126, 811-825.

Campos de Quiros H, Magrath HCR, McCallum D, Kroymann J, Schnabelrauch D, Mitchell-Olds T, Mithen R (2000) Quantitative trait loci and the biochemical genetics of glucosinolate biosynthesis in Arabidopsis thaliana. Theor. Appl. Genet. 101, 429-437.

Stotz HU, Pittendrigh B, Kroymann J, Weniger K, Fritsche J, Bauke A, Mitchell-Olds T (2000) Induced plant defense expression against chewing insects: ethylene signaling reduces resistance of Arabidopsis against egyptian cotton worm but not diamondback moth. Plant Physiol. 124, 999-1009.

Stotz HU, Kroymann J, Mitchell-Olds T (1999) Plant-insect interactions. Curr. Opin. Plant Biol. 2, 268-272.

Kroymann J, Zetsche K (1998) The mitochondrial genome of Chlorogonium elongatum inferred from the complete sequence. J. Mol. Evol. 47, 431-440.

Kroymann J, Zetsche K (1997) The apocytochrome-b gene in Chlorogonium elongatum: An intronic GIY-YIG ORF in green algal mitochondria. Curr. Genet. 31, 514-518.

Kroymann J, Schneider W, Zetsche K (1995) Opposite regulation of the copy number and the expression of plastid and mitochondrial genes by light and acetate in the green flagellate Chlorogonium. Plant Physiol. 108, 1641-1646.