Publications (Last update:02/06/2014)

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Billiard, S., R. Ferriere, S. Meleard and V.C. Tran - under review - Journal of Mathematical Biology Stochastic dynamics of adaptive trait and neutral marker driven by eco-evolutionary feedbacks. arXiv

Castric, V., Billiard, S. and Vekemans, X. (2014) Trait transitions in explicit ecological and genomic contexts: plant mating systems as case studies. Book chapter in C.R. Landry and N. Aubin-Horth (eds.), Ecological Genomics: Ecology and the Evolution of Genes and Genomes, Advances in Experimental Medicine and Biology 781, Springer Science

Abu Awad, D., S. Gallina, C. Bonamy and Billiard, S. (2014) How the interaction between selection, demography and selfing affects population viability. PlOS One 9, e86125 .

Llaurens, V., Billiard, S., and M. Joron (2013) The effect of dominance on polymorphism in a Mullerian mimicry system. Journal of Theoretical Biology 337, 101-110.

Nieuwenhuis, B.P.S., Billiard, S., S. Vuilleumier, E. Petit, M.E. Hood, and T. Giraud (2013) Evolutionary advantages and drawbacks of uni- versus bi-factoriality in mating type determinism. Heredity 111, 445-455.

Husse, L., Billiard, S., Lepart, J., Vernet, P., and Saumitou-Laprade, P. (2013) A one locus model of androdioecy with two homomorphic self-incompatibility groups: expected vs. observed male frequencies. Journal of Evolutionary Biology 26, 1269-1280.

Leducq, J.B., Siniarsky, C., Gosset, C., Gode, C., Poiret, M., Valentin, B., Blondel, C., Poux, C., Hautekeete, N., Piquot, Y., Billiard, S. and Vekemans, X. (2013) Intriguing small-scale spatial distribution of chloropastic and nuclear diversity in the endangered plant Biscutella neustriaca (Brassicaceae). Conservation Genetics 14, 65-77.

Billiard, S., Lopez-Villavicencio, M., Hood, M. E. & Giraud, T. (2012) Sex, outcrossing and mating types: unsolved questions in fungi and beyond. Journal of Evolutionary Biology 25, 1020-1038.

Billiard, S. and Tran, V.C. (2012) A general stochastic model for sporophytic self-incompatibility. Journal of Mathematical Biology 64, 163-210.

Billiard, S., López-Villavicencio, M., Devier, B., Hood, M.E., Fairhead, C., & Giraud, T. (2011) Having sex, yes, but with whom? Inferences from fungi on the evolution of anisogamy and mating types. Biological Reviews. 86, 421-442.

Billiard, S. and Castric, V. (2011) Evidence for Fisher's dominance theory: just a "special case"? Trends in Genetics 27, 441-445.

Gervais, C., Castric, V., Ressayre, A. and Billiard, S. (2011) Origin and diversification dynamics of self-incompatibility haplotypes. Genetics 189,625-636.

Leducq, J.B., Gosset, C., Poiret, M., Hendoux, F., Vekemans, X., & Billiard, S. (2010) An experimental study of the S-Allee effect in the self-incompatible Biscutella neustriaca (Brassicaceae). Conservation Genetics 11, 497-508.

Llaurens, V., Billiard, S., Castric, V. & Vekemans, X. (2009) Evolution of dominance in sporophytic self-incompatibility systems: I. Genetic load and coevolution of levels of dominance in pollen and pistil. Evolution 63, 2427-2437.

Llaurens, V., Gonthier, L. & Billiard, S. (2009) The sheltered genetic load linked to the S locus in plants: new insights from theoretical and empirical approaches in sporophytic self-incompatibility. Genetics 183, 1105-1118.

L.M. Chevin, S. Billiard, and F. Hospital (2008) Hitchhiking both ways: effect of two interfering selective sweeps on linked neutral variation. Genetics 180: 301–316.

Llaurens V., S. Billiard, J.B. Leducq, V. Castric, E.K. Klein, and X. Vekemans (2008) Does frequency-dependent selection with complex dominance interactions accurately predict allelic frequencies at the self-incompatibility locus in Arabidopsis halleri? Evolution 62, 2545-2557.

Billiard S. (2008) NESSI: A program for numerical estimations in sporophytic self-incompatibility genetic systems. Molecular Ecology Ressources 8: 295-298. DOWNLOAD NESSI HERE

Billiard S., V. Castric and X. Vekemans (2007). A general model to explore complex dominance patterns in plant sporophytic self-incompatibility systems. Genetics 175: 1351-1369.

Billiard S. and T. Lenormand. (2005). Evolution of migration under kin selection and local adaptation. Evolution 59: 13-23.

Billiard S., C. Faurie and M. Raymond (2005). Maintenance of handedness polymorphism in humans: A frequency-dependent selection model. Journal of Theoretical Biology 235: 85-93.

Faurie C., Schiefenhövel W., Le Bomin S., Billiard S. and Raymond M. (2005). Variability of the frequency of left-handedness in traditional societies. Current Anthropology 46: 142-147.

Rousset F. and S. Billiard. (2000). A theoretical basis for measures of kin selection in subdivided populations: finite populations and localized dispersal. Journal of Evolutionary Biology 3: 814-825.


- Population Dynamics : courses and tutorials.

- Population Genetics.

- Evolutionary biology and ecology : practical courses on the various methods used in evolutionary biology (data collecting in greenhouse, statistics, interpretation, modelling, Fstat based on molecular data…).

- GLM methods in Ecology

- Introduction to mathematical modelling.

- Coalescent theory

- Genes and genomes evolution

Research Interests


I'm an evolutionary biologist using population modeling to study life history trait evolution, genetic diversity, demography and conservation biology. I worked on various topics (human evolution, evolution of migration, evolution of altruism, footprint of selective sweeps, etc. see papers below).


Actually, I am especially working on modelling the mating system evolution and their demographic consequences, especially in plants but also in fungi, and in general...


1. Mating systems and demography

Main collaborators: Mathilde Dufay (GEPV, Universite Lille 1), Chi Viet Tran and Pauline Lafitte Godillon (Paul Painleve, Universite Lille 1), Diala Abu Awad (PhD), Clotilde Lepers (PhD).


2. Evolution of mating systems : the sporophytic self-incompatibility (SSI) system in plants :

Main collaborators: Xavier Vekemans, Vincent Castric, Celine Poux, Camille Gervais (Post-Doc ATER), Eleonore Durand (Post-Doc).


3. Mating types evolution in fungi :

Main collaborators: Tatiana Giraud, Benjamin Devier (ESE, Orsay), Manuela Lopez (MNHN, Paris).


4. Mathematics, Ecology and Evolution :

Main collaborators: Sylvie Meleard (CMAP, Ecole Polytechnique), Chi Tran (Universite Lille 1).




MCF, Universite lille 1



Laboratoire de Genetique et Evolution des Populations Vegetales

Batiment SN2

Universite des Sciences et Technologies de Lille 1

F-59655 Villeneuve d'Ascq Cedex



Tel : (+33)3 20 33 59 23 ; Fax : (+33)3 20 43 69 79


Actual Position

Since 2006- Assistant Professor (Maitre de conferences) at the Laboratory Genetics and Evolution of Plant Populations (University of Lille, France) UMR CNRS 8198
2012- Habilitation a Diriger des Recherches: Qu'apporte la modelisation en biologie evolutive ? (Download my HDR document)