Dr. Hélène Jourdan

Research interests

During my PhD, I studied the evolutionary consequences of Parsley frog’s breeding strategies. It is a small frog that is common in Mediterranean ponds. I performed fieldwork in the Montpellier Region to study the breeding pattern of local populations. I use molecular markers to do standard genetic structure analyses and also to infer individual breeding strategies (with relatedness measures). In parallel, I built an experimental rearing device to characterize larval traits of tadpoles linked with each breeding strategy.

I showed that Parsley frog display highly plastic larval traits and probably use a bet-hedging breeding strategy.
In my post-doc, I will study sex-reversal in amphibian, more precisely treefrogs (Hyla arborea) and common frog (Rana temporaria). Sex-reversed individuals have the genotype of one sex and are turned into the other sex under environmental induction (by temperature or hormones). I will determine recombination rates in sex-reversed frogs (reversed in the lab) compared to “normal frogs” and test the following hypothesis: recombination patterns depend on the phenotypic sex and not the genotypic sex. This project is included in a broader study of sex chromosome evolution (see Nicolas Perrin’s group).

Curriculum vitae

2011 –
Post-doctoral fellow (Marie Heim-Vötglin grant, FNS) with Nicolas Perrin “Evolutionary consequences of sex-reversal in amphibians

2007 – 2010
PhD thesis in Evolutionary Ecology at the Center for Functional and Evolutionary Ecology, in Montpellier, France (with P. David and P-A Crochet): “Variability of life history traits in fragmented populations: breeding strategies in Parsley frog, Pelodytes punctatus”.
Teaching at the University of Montpellier (practical courses)

2006 – 2007
One year-training period at the Evolutionary Sciences Institute of Montpellier (with D. McKenzie): “Metabolic prioritization in sea bass, Dicentrarchus labrax

Fall 2005
5 month-training period at the department of zoology, UBC, Vancouver Canada (with D. R. Jones): “Evolution of blood pressure in fish

Spring 2005
4 month-training period at the INSERM, Lyon, France (with G. Mithieux): “Metabolic zonation of G6-phosphatase localization

Summer 2004
2 month-training period at the Center for Ecology and Energetic Physiology, Strasbourg, France (Y. Le Maho): “Proteolysis during long term fasting in Adélie penguin, Pygoscelis adeliae

2004 – 2006
Master’s degree in Molecular and Cellular Biology at the École Normale Supérieure of Lyon, France

Advanced search is available through Serval

Publications can be managed by accessing Serval via  MyUnil




Member of Perrin group

Biophore - CH-1015 Lausanne
Tel. +41 21 692 41 60
Fax +41 21 692 41 65