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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Postdoc Jean-Nicolas Jasmin

Moving the wine yeast Saccharomyces cerevisiae up its adaptive peak in grape must
Jean Nicolas

My postdoc is a part of the PEAKYEAST Project, led by Jean-Luc Legras.

Sustaining a growing population while preserving nature is challenging, especially in an increasingly unpredictable climate. In this context, high production levels of fine wine will require innovations. Such breakthroughs are likely to arise from experimenting with the grape must’s microbial community that determine many wine characteristics. We propose to study the evolutionary genetics of the main wine yeast, S. cerevisiae, in its microbial community.

The genetic diversity of the yeast Saccharomyces cerevisiae is organized into subgroups each running in a particular environment (beer, bread, wine, cheese, rum, Sake, forest, etc.). In my project I experimentally adapt different sets of strains in grape must in order to evaluate the adaptation of strains commonly used for wine production. Are they the best for this task? Can they be improved by replacing some of their genes with those of other subgroups? I also estimate the potential of horizontal transfers of other yeast species present in grape must for the adaptation of S. cerevisiae to this environment.


Before my postdoc....:

I obtained my PhD at Wake Forest University (USA) under the supervision of Clifford Zeyl and my master MSc at the Ottawa University under the supervision of Rees Kassen.

Then I did a postdoc at CEFE (Montpellier) under the supervision of Thomas Lenormand. I have a postdoc position in the SPO joined research unit since 2017.

Contact : Jean-Nicolas Jasmin (

Main publications:

Vidal, A., Perrot, C., Jasmin, J.-N., Lartigau, E., Arnaud, A., Cézilly, F., & A. Béchet. 2018. Lateralisation of complex behaviours in wild Greater Flamingos. Animal behaviour, sous presse.

Jasmin, J.-N., & T. Lenormand. 2016. Accelerating mutational load is not due to synergistic epistasis or mutator alleles in mutation accumulation lines of yeast. Genetics 202: 751-763.

Jasmin, J-N., & C. Devaux. 2015. Laterality of leaf cutting in the attine ant Acromyrmex echinatior. Insectes Sociaux 62: 109-114.

Jasmin, J.-N., & C. Zeyl. 2014. Rapid evolution of cheating mitochondrial genomes in small yeast populations. Evolution 68: 269-275.

Jasmin, J.-N., & C. Zeyl. 2013. Evolution of pleiotropic costs in experimental populations. Journal of Evolutionary Biology 26: 1363-1369.

Jasmin, J.-N., Dillon, M.M., & C. Zeyl. 2012 The yield of experimental yeast populations declines during selection. Proceedings of the Royal Society B 279: 4382-4388.

Jasmin, J.-N., & C. Zeyl. 2012. Life-history evolution and density-dependent growth in experimental populations of yeast. Evolution 66: 3789-3802.