Plant Genome Evolution and Diversification

Despite evidence pointing to gene duplication, transposition and epigenetic changes going along with plant diversification, the evolutionary significance of such genome dynamics remains elusive. Our work thus integrates evolutionary ecology and genomics to better understand speciation and adaptive radiation under changing environments.

Our projects often (but not only) use polyploid speciation as a model process integrating genomic and ecological changes. They combine high-throughput genomic technologies with experimental and empirical field studies to untangle the genetic and ecological drivers of diversification in alpine and Mediterranean plant populations.

• Chromosome restructuring among hybridizing wild wheats
  Parisod, Christian; Badaeva, Ekaterina D.
  New Phytologist,  DOI: 10.1111/nph.16415, Early Access: FEB 2020
• Plant defense resistance in natural enemies of a specialist insect herbivore
  Zhang, Xi; van Doan, Cong; Arce, Carla C. M.; Hu, Lingfei; Gruenig, Sandra; Parisod, Christian; Hibbard, Bruce E; Herve, Maxime R.; Nielson, Chad; Robert, Christelle A. M.; Machado, Ricardo A. R.; Erb, Matthias
  Proceedings Of The National Academy Of Sciences Of The United States Of America,  DOI: 10.1073/pnas.1912599116, NOV 12 2019
• Eco-genetic additivity of diploids in allopolyploid wild wheats
  Huynh, Stella; Broennimann, Olivier; Guisan, Antoine; Felber, Francois; Parisod, Christian
  Ecology Letters, DOI: 10.1111/ele.13466, Early Access: FEB 2020
• Hybridization preceded radiation in diploid wheats
  Huynh, S; Marcussen, T; Felber, F; Parisod, C
  MOLECULAR PHYLOGENETICS AND EVOLUTION, 139 10.1016/j.ympev.2019.106554 OCT 2019
• Genome-wide variation in nucleotides and retrotransposons in alpine populations of Arabis alpina (Brassicaceae)
  Rogivue A; Choudhury RR; Zoller S; Joost S; Felber F; Kasser M; Parisod C; Gugerli F
  MOLECULAR ECOLOGY RESOURCES, 19 (3):773-787;  https://doi.org/10.1111/1755-0998.12991 MAY 2019
• Impact of polymorphic transposable elements on linkage disequilibrium along chromosomes
  Choudhury, RR; Rogivue, A; Gugerli, F; Parisod, C
  MOLECULAR ECOLOGY, 28 (6):1550-1562; SI  https://doi.org/10.1111/mec.15014 MAR 2019
• Lateral transfers of large DNA fragments spread functional genes among grasses
  Dunning, LT; Olofsson, JK; Parisod, C; Choudhury, RR; Moreno-Villena, JJ; Yang, Y; Dionora, J; Quick, WP; Park, M; Bennetzen, JL; Besnard, G; Nosil, P; Osborne, CP; Christin, PA
  PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 116 (10):4416-4425; 10.1073/pnas.1810031116 MAR 5 2019
• Parental transposable element loads influence their dynamics in young Nicotiana hybrids and allotetraploids
  Mhiri, C; Parisod, C; Daniel, J; Petit, M; Lim, KY; de Borne, FD; Kovarik, A; Leitch, AR; Grandbastien, MA
  NEW PHYTOLOGIST, 221 (3):1619-1633; 10.1111/nph.15484 FEB 2019
• The phylogeographic structure of Arabis alpina in the Alps shows consistent patterns across different types of molecular markers and geographic scales
  Rogivue, Aude; Graf, René; Parisod, Christian; Holderegger, Rolf; Gugerli, Felix (2018)
  Alpine Botany, 128(1):35-45. Springer https://doi.org/10.1007/s00035-017-0196-8 2018
• Multiscale landscape genomic models to detect signatures of selection in the alpine plant Biscutella laevigata 
  Leempoel, Kevin; Parisod, Christian; Geiser, Celine; et al. 
  ECOLOGY AND EVOLUTION, 8 (3): 1794-1806; https://doi.org/10.1002/ece3.3778 FEB 2018

• Mechanisms of reproductive isolation and speciation
• Polyploidy (hybridization and whole genome duplication)
• Transposable elements and genome dynamics
• Landscape genetics and adaptation to environmental heterogeneity
• Alpine botany

• Integration of genetic variation with environmental heterogeneity at high resolution
• Characterization of genetic resources in wild relatives of crop species
• Genetic diversity for the monitoring of rare endemics or ill-defined species