Génétique et Ecologie Evolutive

Luis-Miguel CHEVIN

altChargé de Recherche CNRS

  

luis-miguel.chevin[at]cefe.cnrs.fr

I am interested in adaptive evolution in response to changing environments: its ecological causes, phenotypic and genetic underpinnings, and demographic consequences. 

Personal website

 

 

 

Adresse 

CEFE/CNRS
Campus du CNRS
1919, route de Mende
34293 Montpellier 5

Tél : +33/0 4 67 61 32 11
Fax : +33/0 4 67 61 33 36

 

Brief CV

2015-   Permanent Researcher (CR1) CNRS

2011-15   Permanent Researcher (CR2) CNRS
2009-11   Post-Doc (Newton Fellow), Imperial College London, Silwood Park.
2005-08   PhD Paris Sud XI
2001-05   INA P-G (AgroParisTech)

ERC Starting Grant FluctEvol (2016-2021)

Associate Editor for Evolution (2016-2018)

 

Research

My research focuses on adaptive evolution. I aim to understand how mechanisms underlying adaptation affect genetic and phenotypic diversity in natural populations, and population growth and persistence in changing environments. Questions I have investigated in previous projects include: 

• How does natural selection acting simulanteously on mutliple loci affect surrounding neutral polymorphism?

• What's the effect of the phenotypic complexity of mutation (pleiotropy) and of selection on parallel evolution, and on speciation?

• How does phenotypic plasticity affect interactions between evolution and demography in changing environments?

My current work combines theoretical and empirical approaches towards a better understanding and prediction of the dynamics of contemporary evolution. These situations where evolution is followed in real time include (i) long-term monitoring of natural populations, (ii) experimental evolution in the laboratory, and (iii) resurrection ecology (reanimation of dormant seeds or diapaused eggs from natural banks). These approaches offer a unique opportunity to test the ability of evolutionary biology to produce predictions that can be used in applied fields such as the management of resistances, or the conservation of biodiversity in the face of global change.

Keywords: Genetics of adaptation, Phenotypic plasticity, Eco-evolutionary dynamics, Molecular signatures of selection, Pleiotropy, Parallel evolution, Evolutionary rescue.

 

Thèmes de recherches 

Je m'intéresse à l'adaptation des organismes vivants à leur environnement. Mes recherches visent à comprendre comment les mécanismes sous-jacents à cette adaptation affectent la diversité génétique et phénotypique des populations naturelles, et leur persistance en environnement changeant. Mes travaux antérieurs m'ont amené à étudier notamment:

• Comment la sélection naturelle agissant simultanément sur plusieurs gènes affecte le polymorphisme neutre de séquence environnant? 
• Comment les effets des mutations sur les caractères sous sélection, et leur variation d'un gène à l'autre, influent sur la probabilité qu'un gène soit utilisé lors de l'adaptation, et sur l'évolution parallèle?
• Comment la plasticité phénotypique modifie les interactions entre évolution et démographie en environnement changeant?

Mon projet actuel vise à combiner approches théoriques et empiriques pour permettre une meilleure prédiction de la dynamique de l'évolution contemporaine. Ces situations où l'évolution est suivie en temps réel incluent (i) le suivi à long terme de population naturelles, (ii) l'évolution expérimentale au laboratoire, et (iii) l'écologie de la résurrection (réanimation de formes dormantes: graines ou cystes). Elles offrent une opportunité unique de tester la capacité de la biologie évolutive à émettre des prédictions utilisables notamment dans des domaines appliqués tels que la gestion des résistances ou le maintien de la biodiversité face aux changements globaux. 

Mots clés: Génétique de l'Adaptation, Plasticité Phénotypique, Interactions Eco-Evolutives, Signatures Moléculaires de la Sélection, Pléiotropie, Evolution Parallèle, Sauvetage Evolutif.

 

Publications

[28] Chevin L.-M., A. A. Hoffmann. Evolution of plasticity in extreme environments. Phil. Trans. R. Soc. B. (in press)
[27] Ashander, J., Chevin L.-M., Baskett, M. 2016. Predicting evolutionary rescue via evolving plasticity in stochastic environments. Proc. R. Soc. B.
[26] Lenormand, T., L. M. Chevin, and T. Bataillon. 2016. Parallel evolution: what does it (not) tell us and why is it (still) interesting? in G. Ramsey, and C. H. Pence, eds. Chance in Evolution. University of Chicago Press, Chicago.

[25] Nougue, O., Svendsen, N., Zahab, R., Lenormand, T., Chevin, L.-M. The ontogeny of tolerance curves: Habitat quality versus acclimation in a stressful environment. Journal of Animal Ecology, in Press.

[24] Chevin L.-M. Species selection and random drift in macroevolution. Evolution 70: 513–525. Selected by Faculty of 1000.
[23] Nougué O., Rode N.O., Zahab R., Ségard A., Chevin L.-M, Haag C., Lenormand T. 2015 Automixis in Artemia: solving a century-old problem. Journal of Evolutionary Biology 28: 2337-2348

[22] Chevin, L.-M., R. Lande. Evolution of environmental cues for phenotypic plasticity. Evolution 69: 2767-2775.
[21] Chevin, L.-M., Visser, M,E., Tufto, J. Estimating the variation, autocorrelation, and environmental sensitivity of phenotypic selection. Evolution: 69, 2319-2332.
[20] Nougué, O, Gallet, R, Chevin, L.-M, Lenormand, T. Niche limits of symbiotic gut microbiota constrain the salinity tolerance of brine shrimp. Am. Nat 186: 390.
[19] Chevin, L.-M. Evolution of adult size depends on genetic variance in growth trajectories: A comment on analyses of evolutionary dynamics using integral projection models. Methods in Ecology and Evolution 6: 981-986.
[18] Chevin, L.-M., Haller, B. 2014. The temporal distribution of directional gradients under selection for an optimum. Evolution 68: 3381–3394.
[17] Michel, M., Chevin L.-M., and J. Knouft. 2014. Evolution of phenotype-environment associations by genetic responses to selection and phenotypic plasticity in a temporally autocorrelated environment. Evolution, 68: 1374-1384
[16] Chevin L.-M., Decorzent G. and T. Lenormand. 2014. Niche dimensionality and the genetics of ecological speciation. Evolution, 68: 1244-1256.
[15] Chevin L.-M.,Lande R. 2013. Evolution of discrete phenotypes from continuous norms of reaction. Am. Nat. 182 : 13-27.
[14] Chevin L.-M., Gallet R., Gomulkiewicz R., Holt R.D., Fellous, S. 2013. Phenotypic plasticity in evolutionary rescue experiments. Phil. Trans. R. Soc. B.
[13] Chevin L.-M. 2013. Genetic constraints on adaptation to a changing environment. Evolution 67: 708-721.  Selected by Faculty of 1000.
[12] Chevin L.-M., Collins S., Lefèvre F. 2013. Phenotypic plasticity and evolutionary demographic responses to climate change: taking theory out to the field. Functional Ecology. PDF.
[11] Chevin L.-M., Beckerman A.P. 2012. From adaptation to molecular evolution. Heredity. PDF
[10] Chevin L.-M., Lande R. 2011. Adaptation to marginal habitats by evolution of increased phenotypic plasticity. Journal of Evolutionary Biology 24: 1462-76. PDF
[9] Chevin L.-M. 2011. On measuring selection in experimental evolution. Biology Letters 7: 210-213. PDF
[8] Chevin L.-M., Martin G., Lenormand T. 2010. Fisher's model and the genomics of adaptation: restricted pleiotropy, heterogeneous mutation and parallel evolution. Evolution 64: 3213-3231. PDF
[7] Chevin L.-M., Lande R., Mace G. M. 2010. Adaptation, plasticity, and extinction in a changing environment: towards a predictive theory. PLoS Biology 8: e1000357. PDF    Selected by Faculty of 1000.
[6] Chevin L.-M., Lande R. 2010. When do adaptive plasticity and genetic evolution prevent extinction of a density-regulated population? Evolution 64-4: 1143-1150. PDF
[5] Chevin L.-M. , Bastide H., Montchamp-Moreau C., Hospital F. 2009. Molecular signature of epistatic selection: interrogating genetic interactions in the sex-ratio meiotic drive of Drosophila simulans. Genetical Research 91: 171-182. PDF
[4] Chevin L.-M., Hospital F. 2008. Selective sweep at a quantitative trait locus in the presence of background genetic variation. Genetics 180: 1645-1660. PDF
[3] Camus-Kulandaivelu L., Chevin L.-M., Tollon-Cordet C., Charcosset A., Manicacci D., Tenaillon M. I. 2008. Patterns of molecular evolution associated with two selective sweeps in the tb1-dwarf8 region in maize. Genetics 180: 1107-1121. PDF
[2] Chevin L.-M., Billiard S., Hospital F. 2008. Hitchhiking both ways: Effect of two interfering selective sweeps on linked neutral variation. Genetics 180:301-316. PDF
[1] Chevin L.-M., Hospital F. 2006. The hitchhiking effect of an autosomal meiotic drive gene. Genetics 173:1829-1832. PDF