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Université de Fribourg

Differential phenotypic and genetic expression of defence compounds in a plant–herbivore interaction along elevation

Salgado, Ana L. ; Suchan, Tomasz ; Pellissier, Loïc ; Rasmann, Sergio ; Ducrest, Anne-Lyse ; Alvarez, Nadir

In: Royal Society Open Science, 2016, vol. 3, no. 9, p. 160226

Elevation gradients impose large differences in abiotic and biotic conditions over short distances, in turn, likely driving differences in gene expression more than would genetic variation per se, as natural selection and drift are less likely to fix alleles at such a narrow spatial scale. As elevation increases, the pressure exerted on plants by herbivores and on arthropod herbivores by...

Université de Fribourg

Climate vs. soil factors in local adaptation of two common plant species

Macel, Mirka ; Lawson, Clare S. ; Mortimer, Simon R. ; Šmilauerova, Marie ; Bischoff, Armin ; Crémieux, Lisèle ; Doležal, Jirí ; Edwards, Andrew R. ; Lanta, Vojtch ; Bezemer, T. Martijn ; Putten, Wim H. van der ; Igual, José M. ; Rodriguez-Barrueco, Claudino ; Müller-Schärer, Heinz ; Steinger, Thomas

In: Ecology, 2007, vol. 88, no. 2, p. 424–433

Evolutionary theory suggests that divergent natural selection in heterogeneous environments can result in locally adapted plant genotypes. To understand local adaptation it is important to study the ecological factors responsible for divergent selection. At a continental scale, variation in climate can be important while at a local scale soil properties could also play a role. We designed an...

Université de Fribourg

Detecting local adaptation in widespread grassland species – the importance of scale and local plant community

Bischoff, Armin ; Crémieux, Lisèle ; Smilauerova, Marie ; Lawson, Clare S. ; Mortimer, Simon R. ; Dolezal, Jiri ; Lanta, Vojtech ; Edwards, Andrew R. ; Brook, Alex J. ; Macel, Mirka ; Leps, Jan ; Steinger, Thomas ; Müller-Schärer, Heinz

In: Journal of Ecology, 2006, vol. 94, p. 1130-1142

1 Adaptation of plant populations to local environments has been shown in many species but local adaptation is not always apparent and spatial scales of differentiation are not well known. In a reciprocal transplant experiment we tested whether: (i) three widespread grassland species are locally adapted at a European scale; (ii) detection of local adaptation depends on competition with the...