Hugo Doré

Smiling PhD Student

Research thematics

My PhD project aims at deciphering Synechococcus ecology by studying the ecotypic variability of stress response in this marine picocyanobacterial genus. More specifically, I focus both on the geographic distribution of Synechococcus clades and on the genomic and physiological diversity of a range of strains.

Previous Research Experience

  • 2014 - 4 months Master's degree internship in the Tucson Marine Phage Lab (Sullivan Lab, now located at Ohio University).
    Transcriptomic and proteomic response of two closely related strains of a marine bacterium (C. baltica) to the infection by the same bacteriophage, the two infections having different outcomes.
  • 2013 - 4 months Master's degree internship in the MaPP (Marine Phototrohic Prokaryotes) group at the Station Biologique de Roscoff.
    Genetic regulation and the geographic distribution of "type 4 chromatic acclimation" (the ability to change pigmentation depending on the light quality) in Synechococcus.
  • 2012 - 4 months Master's degree internship in the Rhizosphere group at University Lyon 1 (UMR 5557).
    Plant-Growth Promoting Effect of the rhizobacterium Azospirillum lipoferum through genetic engineering.
  • 2011 - 2 months internship as undergraduate in the Plant Reproduction and Develpment Lab (ENS Lyon).
    Role of the "retromer" complex in root growth of the model plant Arabidopsis thaliana.


  • 2014 - Current: PhD student at the Station Biologique de Roscoff, focusing on the ecology of Synechococcus.
  • 2011-2012 and 2013-2014: Master's degree: Master Biosciences, ENS Lyon
  • 2012-2013: Preparation for Agregation (French exam to become a teacher), ENS Lyon. Agregation obtained in 2013.


Paulsen M. L., Doré H., Garczarek L., Seuthe L., Müller O., Sandaa R-A., Bratbak G. and Larsen A. (2016). Synechococcus in the Atlantic Gateway to the Arctic Ocean. Front. Mar. Sci. 3:191. doi: 10.3389/fmars.2016.00191.

Farrant G. K.*, Doré H.*, Cornejo-Castillo F. M., Partensky F., Ratin M., Ostrowski M., Pitt F. D., Wincker P., Scanlan D. J., Iudicone D., Acinas S. G., Garczarek L. (2016). Delineating ecologically significant taxonomic units from global patterns of marine picocyanobacteria. Proceedings of the National Academy of Sciences, 113(24):E3365-74. *These two authors contributed equally to this work.

Howard-Varona C., Roux S., Dore H., Solonenko N. E., Holmfeldt K., Markillie L. M., Orr G. and Sullivan M. B. (2016). Regulation of infection efficiency in a globally abundant marine Bacteriodetes virus. The ISME Journal (2017) 11,284–295; doi:10.1038/ismej.2016.81; published online 17 May 2016.