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Adaptive evolution and segregating load contribute to the genomic landscape of divergence in two tree species connected by episodic gene flow

Christe, Camille ; Stölting, Kai N. ; Paris, Margot ; Fraїsse, Christelle ; Bierne, Nicolas ; Lexer, Christian

In: Molecular Ecology, 2017, vol. 26, no. 1, p. 59–76

Speciation often involves repeated episodes of genetic contact between divergent populations before reproductive isolation (RI) is complete. Whole-genome sequencing (WGS) holds great promise for unravelling the genomic bases of speciation. We have studied two ecologically divergent, hybridizing species of the ‘model tree’ genus Populus (poplars, aspens, cottonwoods), Populus alba and P....

Analysis of the Major Fe Bearing Mineral Phases in Recent Lake Sediments by EXAFS Spectroscopy

Spadini, Lorenzo ; Bott, Markus ; Wehrli, Bernhard ; Manceau, Alain

In: Aquatic Geochemistry, 2003, vol. 9, no. 1, p. 1-17

Comparing Peripheral Olfactory Coding with Host Preference in the Rhagoletis Species Complex

Olsson, Shannon B. ; Linn, Charles E. ; Feder, Jeffrey L. ; Michel, Andrew ; Dambroski, Hattie R. ; Berlocher, Stewart H. ; Roelofs, Wendell L.

In: Chemical Senses, 2008, vol. 34, no. 1, p. 37-48

Components of reproductive isolation between Orchis mascula and Orchis pauciflora

Scopece, Giovanni ; Croce, Antonio ; Lexer, Christian ; Cozzolino, Salvatore

In: Evolution, 2013, vol. 67, no. 7, p. 2083–2093

Studies of the strength and nature of reproductive isolation (RI) between species can greatly contribute to our understanding of speciation. Although the role of RI in speciation is well recognized, there is a dearth of information on the contributions of different barriers between related plant species. Here, we estimated multiple components of RI between two Mediterranean orchid sister species...

Decrease of sexual organ reciprocity between heterostylous primrose species, with possible functional and evolutionary implications

Keller, Barbara ; de Vos, Jurriaan M. ; Conti, Elena

In: Annals of Botany, 2012, vol. 110, no. 6, p. 1233-1244

Ecological and genetic factors influencing the transition between host-use strategies in sympatric Heliconius butterflies

Merrill, R. M. ; Naisbit, Russell E. ; Mallet, J. ; Jiggins, Chris D.

In: Journal of Evolutionary Biology, 2013, vol. 26, no. 9, p. 1959–1967

Shifts in host-plant use by phytophagous insects have played a central role in their diversification. Evolving host-use strategies will reflect a trade-off between selection pressures. The ecological niche of herbivorous insects is partitioned along several dimensions, and if populations remain in contact, recombination will break down associations between relevant loci. As such, genetic...

Effects of a Fire Response Trait on Diversification in Replicated Radiations

Litsios, Glenn ; Wüest, Rafael O. ; Kostikova, Anna ; Forest, Félix ; Lexer, Christian ; Linder, H. Peter ; Pearman, Peter B. ; Zimmermann, Niklaus E. ; Salamin, Nicolas

In: Evolution, 2013, p. -

Fire has been proposed as a factor explaining the exceptional plant species richness found in Mediterranean regions. A fire response trait that allows plants to cope with frequent fire by either reseeding or resprouting could differentially affect rates of species diversification. However, little is known about the generality of the effects of differing fire response on species evolution. We...

Fitness correlates of male coloration in a Lake Victoria cichlid fish

Maan, Martine E. ; van der Spoel, Michael ; Jimenez, Paloma Quesada ; van Alphen, Jacques J.M. ; Seehausen, Ole

In: Behavioral Ecology, 2006, vol. 17, no. 5, p. 691-699

Floral adaptation to local pollinator guilds in a terrestrial orchid

Sun, Mimi ; Gross, Karin ; Schiestl, Florian P.

In: Annals of Botany, 2014, vol. 113, no. 2, p. 289-300

Gene flow and diversification in a species complex of Alcantarea inselberg bromeliads

Lexer, Christian ; Marthaler, Fabienne ; Humbert, Sarah ; Barbará, Thelma ; de la Harpe, Marylaure ; Bossolini, Eligio ; Paris, Margot ; Martinelli, Gustavo ; Versieux, Leonardo M.

In: Botanical Journal of the Linnean Society, 2016, vol. 181, no. 3, p. 505-520