PLATES-FORMES Terrain d'expériences French
French
Emergence of functional and regulatory novelty at the self-incompatibility locus in Arabidopsis
- Publication : 12 janvier 2017
Vincent Castric
CNRS – Université de Lille (France)
Le vendredi 20 janvier 2017 - 11h30 Grande Salle CEFE (1919 Rte de Mende, 1e étage, aille C)
(Seminar in English)
Self-incompatibility in plants of the Brassicaceae family is controlled by a highly diversified molecular lock-and-key system consisting of a large set of specific haplotypic combinations of two tightly linked genes. This system has been a textbook example of natural (balancing) selection, in the form of a strong reproductive advantage for individuals expressing rare alleles. These haplotypes also form a striking linear dominance/recessivity hierarchy, whereby most heterozygote combinations express only one self-incompatibility specificity at the phenotypic level. The question of how so many lock-and-key combinations could arise in the first place and then establish such a complex network of dominance/recessivity interactions raises a series of interesting theoretical and mechanistic problems. In this presentation, I will detail how we are currently using this simple and experimentally tractable biological system to provide insight into the broader issue of how functional and regulatory novelty can arise in natural populations.
Recent publications:
Durand E, Méheust R, Soucaze M, Goubet PM, Gallina S, Poux C, Fobis-Loisy I, Gaude T, Sarrazin A, Figeac M, Prat E, Marande W, Bergès H, Vekemans X, Billiard S, Castric V. 2014. Dominance hierarchy arising from the evolution of a complex small RNA regulatory network. Science 346: 1200-1205.
Castric, V., Billiard, S. & Vekemans, X. (2014) Trait transitions in explicit ecological and genomic contexts: plant mating systems as case studies. in: Ecological Genomics - Ecology and the Evolution of Genes and Genomes (ed. by C.R. Landry and N. Aubin-Horth), pp. 7–36. Springer.
Contact: Sylvain Gandon
Contact du Comité SEEM: Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.. Contact du Labex CEMEB: Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser., www.labex-cemeb.org.
Hook, line and extinction: Can sound science save albatrosses from fisheries?
- Publication : 28 novembre 2016
Richard Phillips
British Antarctic Survey, Cambridge, UK
Le vendredi 9 décembre 2016 - 11h30 Grande Salle CEFE (1919 Rte de Mende, 1e étage, aille C)
(Seminar in English)
Global declines of albatrosses and large petrels have been attributed to incidental mortality (bycatch) in fisheries, but without detailed information on demography and distribution, it is rarely possible to determine which component of populations are at particular risk, and where to target conservation efforts. Tracking data provide an essential tool for identifying the areas and times of greatest overlap and hence risk of interaction with particular fisheries. This talk will examine the threat posed by bycatch and, using the wandering albatross population at South Georgia as a case study, highlight the ways in which tracking, demographic and fisheries datasets can be integrated to understand the scale of the bycatch problem and the potential solutions.
Recent publications:
Phillips, R.A., Gales, R., Baker, G.B., Double, M.C., Favero, M., Quintana, F., Tasker, M.L., Weimerskirch, H., Uhart, M., and Wolfaardt, A. (2016) The conservation status and priorities for albatrosses and large petrels. Biological Conservation 201, 169-183.
Jiménez, S., Domingo, A., Brazeiro, A., Defeo, O., Wood, A.G., Froy, H., Xavier, J.C. and Phillips, R.A. (2016) Sex-related variation in the vulnerability of wandering albatrosses to pelagic longline fleets. Animal Conservation 19, 281-295.
Tancell, C., Sutherland, W.J and Phillips, R.A. (2016) Marine spatial planning for the conservation of albatrosses and large petrels breeding at South Georgia. Biological Conservation 198, 165-176.
Contact :David Grémillet : Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.
Contact du Comité SEEM: Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.. Contact du Labex CEMEB: Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser., www.labex-cemeb.org.
Rémy BEUGNON
- Publication : 11 juillet 2016
Rémy BEUGNON
Stagiaire
Transport Galeria
- Publication : 7 juin 2016
IX th International Fig Symposium
- Publication : 27 mai 2016
IX th International Fig Symposium
Organising Committee
Astrid Cruaud */ Finn Kjellberg+ / Annick Lesne / Zongbo Li+* / Magali Proffit+ / Jean-Yves Rasplus* / Lillian J. Rodriguez+* (* CBGP, + CEFE)
Organised by CEFE and CBGP, supported by University of Montpellier, CNRS InEE, Labex CEMEB, INRA
Equipe TE
Responsable scientifique
François VASSEUR
Responsable technique
Thierry MATHIEU
Equipe technique :
Pierrick AURY
David DEGUELDRE
Pauline DURBIN
Lola GEORGE
Fabien LOPEZ
Pour contacter la plateforme
Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.
tél : 04 67 61 32 21
port : 06 12 74 20 61
