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Our goal is to combine genomics and ecological approaches to understand the evolutionary history of a newly discovered supergene and the maintenance of their associated social and wing polymorphism in the tiny ant Myrmecina graminicola
Summary of the project
Summary of the project
To reach this goal, our project is structured into 4 work-packages (WP).
By studying a new supergene system, our project will provide insights into the generality and specificity of the mechanisms underlying supergene evolution and maintenance. The project focus on a manipulable small ant species, Myrmecina graminocola and propose an integrative approach combining genomic and population genetics, ecological survey, chemical and behavioural ecology. To reach its main goal of understanding the evolutionary history and maintenance of polymorphism of a supergene, our project is structured into 4 work-packages (WP).
WP1 How do supergenes evolve?
WP1 How do supergenes evolve?
Unravel the evolution of the supergenes by (i) shedding light on their genomic architecture and (ii) assessing their demographic history in M. graminicola; (iii) searching for the supergenes in closely related species to infer their deep evolutionary history
WP2. Maintenance of supergene polymorphism in M. graminicola: phenotypic effects
WP2. Maintenance of supergene polymorphism in M. graminicola: phenotypic effects
Investigating the phenotypic effects of the supergenes on (i) the sociogenetic organisation of the colonies; (ii) distortion to Mendelian segregation (TRD); (iii) the relative success of the morphs
WP3. Maintenance of supergene polymorphism in M. graminicola: spatially varying selection and mating patterns
WP3. Maintenance of supergene polymorphism in M. graminicola: spatially varying selection and mating patterns
Assess the relative importance of (i) spatially varying selection, especially habitat fragmentation/urbanization; (ii) the differential dispersal abilities of the social forms and (iii) the pattern of non-random mating.
WP4. Effects of supergenes on the maintenance of social and wing polymorphism
WP4. Effects of supergenes on the maintenance of social and wing polymorphism
Integrate our results into an eco-evolutionary model mimicking the genetic determinism of the social supergene.
Interested by this project ?
Interested by this project ?
contact us at claudie.doums@ephe.psl.eu
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