Université Libre de Bruxelles
Faculté des Sciences - Biologie des Organismes Service Evolution Biologique et Ecologie
Social hybridogenesis in ants of the genus Cataglyphis (Hybridogenèse sociale chez les fourmis du genre Cataglyphis)
Thèse présentée en vue de l’obtention du grade de Docteur en Sciences
par Hugo Darras
Directeur de thèse
Serge Aron Université Libre de Bruxelles Rapporteurs
Claire Detrain Université Libre de Bruxelles (Présidente du jury) Patrick Mardulyn Université Libre de Bruxelles (Secrétaire du jury) Jürgen Heinze Universität Regensburg
Karine Van Doninck Université de Namur
- soutenance publique le 26 juin 2017 -
Table of contents
Review Ant species with hybrid workers ...5 Preamble Cataglyphis ants as models ...23
Part 1 Discovery of social hybridogenesis in the ant Cataglyphis hispanica and
characteristics of this unusual reproductive system ...29 Chapter 1 Social Hybridogenesis in the Clonal Ant Cataglyphis hispanica
Leniaud, L.*, Darras, H.*, Boulay, R. & Aron, S. 2012. Current Biology 22 ...31 Chapter 2 Large-scale distribution of hybridogenetic lineages in a Spanish desert ant
Darras, H., Leniaud, L. & Aron, S. 2014. Proceedings of the Royal Society B 281 ...43 Chapter 3 Introgression of mitochondrial DNA among lineages in a hybridogenetic ant
Darras, H. & Aron, S. 2015. Biology Letters 11. ...53
Part 2 Distribution and evolution of social hybridogenesis in Cataglyphis ants ...61 Chapter 4 Hybridogenesis through thelytokous parthenogenesis in two Cataglyphis desert ants
Eyer, P.A., Leniaud, L., Darras, H. & Aron, S. 2013. Molecular Ecology 22. ...63 Chapter 5 Evolution of hybridogenetic lineages in Spanish Cataglyphis ants
Darras, H., Kuhn, A. & Aron, S. Manuscript submitted for publication ...77
Part 3 Population ecology of hybridogenetic populations of Cataglyphis ants ...107 Chapter 6 Sex-biased dispersal creates spatial genetic structure in a parthenogenetic ant with a
dependent-lineage reproductive system
Kuhn, A., Bauman, D., Darras, H. & Aron, S. in press. Heredity. ...109
Part 4 Caste determination system in hybridogenetic Cataglyphis ants ...121 Chapter 7 Genetic determination of female castes in a hybridogenetic desert ant
Darras, H., Kuhn, A. & Aron, S. 2014. Journal of Evolutionary Biology 27. ...123 Chapter 8 Genetic and developmental conditions mediate a caste-genotype association in
Cataglyphis ants
Kuhn, A.*, Darras, H.* & Aron, S. Manuscript submitted for publication. ...133
Part 5 Discovery of social hybridogenesis in the ant Messor barbarus ...143 Chapter 9 Cryptic lineages hybridize for worker production in the harvester ant Messor barbarus
Norman, V.*, Darras, H.*, Tranter, C., Aron, S. & Hughes, W.O.H. 2016. Biology Letters 12. ...145
Conclusions Main results, open questions and perspectives of the thesis. ...159
(* co-lead authors)
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