Social evolution; Social organization; Social insects; Evolutionary ecology; Ecological genomics
Keller Laurent, Chapuisat Michel (2017), Eusociality and cooperation, in Kehrer-Sawatzki Hildegard (ed.), John Wiley & Sons Ltd, Chichester, 1-7.
Brutsch Timothée, Jaffuel Geoffrey, Vallat Armelle, Turlings Ted C. J., Chapuisat Michel (2017), Wood ants produce a potent antimicrobial agent by applying formic acid on tree-collected resin, in ECOLOGY AND EVOLUTION
, 7(7), 2249-2254.
Avril Amaury, Purcell Jessica, Chapuisat Michel (2016), Ant workers exhibit specialization and memory during raft formation., in The Science of Nature
, 103(5-6), 36-36.
Purcell Jessica, Zahnd Sacha, Athanasiades Anouk, Tuerler Rebecca, Chapuisat Michel, Brelsford Alan (2016), Ants exhibit asymmetric hybridization in a mosaic hybrid zone, in MOLECULAR ECOLOGY
, 25(19), 4866-4874.
Purcell Jessica, Pirogan Dorin, Avril Amaury, Bouyarden Farid, Chapuisat Michel (2016), Environmental influence on the phenotype of ant workers revealed by common garden experiment, in BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
, 70(3), 357-367.
Purcell Jessica, Pellissier Loic, Chapuisat Michel (2015), Social structure varies with elevation in an Alpine ant, in MOLECULAR ECOLOGY
, 24(2), 498-507.
Purcell Jessica, Avril Avril, Jaffuel Geoffrey, Bates Sarah, Chapuisat Michel (2014), Ant brood function as life preservers during floods, in Plos One
, 9, 89211-89211.
Brütsch Timothée, Felden Antoine, Reber Anabelle, Chapuisat Michel (2014), Ant queens (Hymenoptera: Formicidae) are attracted to fungal pathogens during the initial stage of colony founding, in Myrmecological News
, 20, 71-76.
Purcell Jessica, Brelsford Alan, Wurm Yannick, Perrin Nicolas, Chapuisat Michel (2014), Convergent Genetic Architecture Underlies Social Organization in Ants, in CURRENT BIOLOGY
, 24(22), 2728-2732.
Chapuisat Michel (2014), Evolution. Smells like queen since the Cretaceous, in Science
, 343(6168), 254-255.
Purcell Jessica, Chapuisat Michel (2014), Foster carers influence brood pathogen resistance in ants, in PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
, 281(1792), 20141338.
Galvez Dumas, Chapuisat Michel (2014), Immune priming and pathogen resistance in ant queens, in ECOLOGY AND EVOLUTION
, 4(10), 1761-1767.
Brand Nayuta, Chapuisat Michel (2014), Impact of helpers on colony productivity in a primitively eusocial bee, in Behavioral Ecology and Sociobiology
, 68, 291-298.
Keller Laurent, Chapuisat Michel (2014), The evolution of eusociality, in Losos Jonathan B. (ed.), Princeton University Press, Princeton, 697-702.
Kocher Sarah D., Pellissier Loic, Veller Carl, Purcell Jessica, Nowak Martin A., Chapuisat Michel, Pierce Naomi E. (2014), Transitions in social complexity along elevational gradients reveal a combined impact of season length and development time on social evolution, in PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
, 281(1787), 20140627.
Brütsch Timothée, Chapuisat Michel (2014), Wood ants protect their brood with tree resin, in Animal Behaviour
, 93, 157-161.
Brütsch Timothée, Avril Amaury, Chapuisat Michel, No evidence for social immunity in co-founding queen associations, in Scientific Reports
Organisms vary greatly in social organization, which impacts the distribution of genetic diversity at multiple levels of biological organization and has profound implications for social evolution theory. However, the genomic and ecological correlates of variation in social organization are still largely unknown. In ants, the transition from monogyny (one queen per colony) to polygyny (multiple queens per colony) may be controlled by genetic factors and/or environmental factors generating phenotypic plasticity. Moreover, gene flow and ecological selective pressures are likely to differ between the monogynous and polygynous social forms. We propose to study the genomic architecture and ecological factors maintaining diversity in social organization in the ant Formica selysi. We will use an ultra high throughput genotyping-by-sequencing approach (GBS; also called double-digest RAD sequencing) to characterize genome-wide patterns of genetic differentiation among individuals belonging to each social form and sampled across 20 populations. The populations will be selected along altitudinal gradients, and will thus vary in ecological parameters that may influence social organization, like temperature, pluviometry, season length, resource availability and habitat stability. The GBS approach will provide thousands of SNPs distributed throughout the genome, which will allow us to investigate patterns of genetic differentiation among individuals, colonies, populations and social forms with unprecedented power, both genome-wide and at individual SNPs that may be associated with traits of interest. We have three main goals. (1) First, we will assess how variation in social organization affects the distribution of genetic diversity. We will infer patterns of gene flow within and among populations and social forms, thereby testing if the social forms differ in dispersal and colonization ability, as is generally predicted by social evolution theory. (2) Second, we will seek ecological factors that appear to favour one social form or the other, by examining how environmental variables co-vary with social organization across low and high altitude populations. (3) Third, we will investigate the genomic architecture underlying socially or ecologically important traits, by searching for markers or genomic regions that are associated with social forms or environmental variables, or show signs of positive selection. This integrative approach will shed light on the genomic architecture and ecological factors that jointly influence social organization in ants, thus providing new perspectives on social evolution in hierarchically structured populations.