19 Works

Data from: Sequential co-infections drive parasite competition and the outcome of infection

Giacomo Zilio & Jacob Koella
1) Co-infections by multiple parasites are common in natural populations. Some of these are likely to be the result of sequential rather than simultaneous infections. The timing of the co-infections may affect their competitive interactions, thereby influencing the success of the parasites and their impact on the host. This may have important consequence for epidemiological and eco-evolutionary dynamics. 2) We examined in two ecological conditions the effect of sequential co-infection on the outcome of infection...

Data from: Heritable variation in root secondary metabolites is associated with recent climate

Zoe Bont, Tobias Züst, Carla Arce, Meret Huber & Matthias Erb
1. Plants can adapt to changing environments by adjusting the production and maintenance of diverse sets of bioactive secondary metabolites. To date, the impact of climatic conditions relative to other factors such as soil abiotic factors and herbivore pressure on the evolution of plant secondary metabolites is poorly understood, especially for plant roots. 2. We explored associations between root latex secondary metabolites in 63 Taraxacum officinale populations across Switzerland and climatic conditions, soil abiotic parameters,...

Data from: To bee or not to bee: the “raison d’être” of toxic secondary compounds in the pollen of Boraginaceae

Christophe Praz, Vincent Trunz, Matteo Lucchetti, Dimitri Bénon, Achik Dorchin, Gaylord Desurmont, Christina Kast, Sergio Rasmann & Gaëtan Glauser
This dataset contains all data analyzed in the article "To bee or not to bee: The “raison d’être” of toxic secondary compounds in the pollen of Boraginaceae", by V. Trunz et al, published in Functional Ecology. List of files: in "PGLS" folder, "PA_values.csv" gives the transformed PA values for pollen and corolla. "Group" stands for Borago-Group (1) or other species (0). The tree ("tree_Boraginaceae.txt") is in Nexus format. This dataset can be used for CAPER...

Constitutive and induced phenolics and volatiles in Quercus pyrenaica

Andrea Galmán, Luis Abdala-Roberts, Pola Wartalska, Felisa Covelo, Gregory Röder, Mark A. Szenteczki, Xoaquín Moreira & Sergio Rasmann
With this dataset, we studied elevational gradients and their underlying climatic factors in constitutive and induced phenolics and volatile organic compounds in Oak trees. Oak defences were measured in leaves in a field study. The dataset includes data for 18 populations of Quercus pyrenaica spanning a 1300 m elevational gradient (from 370 to 1614 m) with their correspondence coordinates. In each population we sampled six saplings that were randomly assigned to one of two treatments:...

Que nous apprend OFROM du français régional d'aujourd'hui en Suisse romande ?* Premières investigations entre pratiques et métadiscours

Federica Diémoz, Julie Rothenbühler & Maguelone Sauzet

Maintenance of variation in virulence and reproduction in populations of an agricultural plant pathogen

Anik Dutta, Daniel Croll, Bruce A. McDonald & Luke G. Barrett
Genetic diversity within pathogen populations is critically important for predicting pathogen evolution, disease outcomes, and prevalence. However, we lack a good understanding of the processes maintaining genetic variation and constraints on pathogen life‐history evolution. Here, we analyzed interactions between 12 wheat host genotypes and 145 strains of Zymoseptoria tritici from five global populations to investigate the evolution and maintenance of variation in pathogen virulence and reproduction. We found a strong positive correlation between virulence (amount...

Avant-propos Français parlés et français 'tout court'

Julie Rothenbühler, Maguelone Sauzet, Marie-Jose Beguelin & Gilles Corminboeuf

Les intentions contradictoires des Suisses vis-à-vis de leur consommation d’énergie

Mehdi Farsi, Laurent Ott & Sylvain Weber

Data from: Ecological convergence of secondary phytochemicals along elevational gradients

Sergio Rasmann, Moe Bakhtiari, Emmanuel Defossez & Gaetan Glauser
Biologists still strive to identify the ecological and evolutionary drivers of phytochemical variation that mediate biotic interactions. We hypothesized that plant species growing at sites characterized by high herbivore pressure would converge to produce highly toxic blends of secondary metabolites, independent of phylogenetic constraints. To address the role of shared evolutionary history and ecological niches in driving variation in plant phytochemistry, we combined targeted metabolomics with insect herbivore bioassays and with a set of growth-related...

Étude des contours prosodiques des listes ouvertes dans le corpus OFROM

Laure Anne Johnsen & Mathieu Avanzi

Data from: Outcrossing mating system of the early-divergent moonwort fern (Botrychium lunaria, Ophioglossaceae) revealed in the European Alps

Benjamin Dauphin, Jason Grant & Donald Farrar
Premise of the Research. Vascular plants depend on sexual recombination for generating new genetic variability to meet environmental needs. Nevertheless, members of the early-divergent fern genus Botrychium (Ophioglossaceae) typically maintain gametophytic selfing and show strong inbreeding within populations. To explain this evolutionary anomaly, the existence of previous or current but undiscovered outcrossing, genetically rich, precursors of the existing genetically depauperate taxa has been hypothesized. Methodology. Using allele expression at thirteen independently assorting enzyme loci, we...

Data from: Ultraconserved yet informative for species delimitation: UCEs resolve long-standing systematic enigma in Central European bees

Morgan Gueuning, Christophe Praz & Juerg Frey
Accurate and testable species delimitation hypotheses are essential for measuring, surveying and managing biodiversity. Today, taxonomists often rely on mitochondrial DNA barcoding to complement morphological species delimitations. Although COI barcoding has largely proven successful in assisting identifications for most animal taxa, there are nevertheless numerous cases where mitochondrial barcodes do not necessarily reflect the species history. For instance, what is regarded as one single species can be associated with two distinct DNA barcodes, which can...

The search for sexually antagonistic genes: practical insights from studies of local adaptation and statistical genomics

Filip Ruzicka, Ludovic Dutoit, Peter Czuppon, Crispin Y. Jordan, Xiang‐Yi Li, Colin Olito, Homa Papoli Yazdi, Tim Connallon, Erik Svensson & Anna Runemark
Sexually antagonistic (SA) genetic variation—in which alleles favored in one sex are disfavored in the other—is predicted to be common and has been documented in several animal and plant populations, yet we currently know little about its pervasiveness among species or its population genetic basis. Recent applications of genomics in studies of SA genetic variation have highlighted considerable methodological challenges to the identification and characterization of SA genes, raising questions about the feasibility of genomic...

Die widersprüchlichen Absichten der Schweizer Bevölkerung in Bezug auf ihren Energieverbrauch

Mehdi Farsi, Laurent Ott & Sylvain Weber

Environmental drivers of Sphagnum growth in peatlands across the Holarctic region

Fia Bengtsson, Håkan Rydin, Jennifer Baltzer, Luca Bragazza, Zhao-Jun Bu, Simon Caporn, Ellen Dorrepaal, Kjell Ivar Flatberg, Olga Galanina, Mariusz Gałka, Anna Ganeva, Irina Goia, Nadezhda Goncharova, Michal Hajek, Akira Haraguchi, Lorna Harris, Elyn Humphreys, Martin Jiroušek, Katarzyna Kajukało, Edgar Karofeld, Natalia Koronatova, Natalia Kosykh, Anna Laine, Mariusz Lamentowicz, Elena Lapshina … & Richard J. Payne
The relative importance of global versus local environmental factors for growth and thus carbon uptake of the bryophyte genus Sphagnum – the main peat-former and ecosystem engineer in northern peatlands – remains unclear. 2) We measured length growth and net primary production (NPP) of two abundant Sphagnum species across 99 Holarctic peatlands. We tested the importance of previously proposed abiotic and biotic drivers for peatland carbon uptake (climate, N deposition, water table depth, and vascular...

Data from: The effect of root-associated microbes on plant growth and chemical defence traits across two contrasted elevations,

Ludovico Formenti, Veronica Caggia, Jeremy Puissant, Tim Goodall, Gaëtan Glauser, Robert Griffiths & Sergio Rasmann
1. Ecotypic differences in plant growth and anti-herbivore defence phenotypes are determined by the complex interactions between the abiotic and the biotic environment. 2. Root-associated microbes (RAMs) are pervasive in nature, vary over climatic gradients, and have been shown to influence the expression of multiple plant functional traits related to biomass accumulation and biotic interactions. We addressed how variation in climatic conditions between lowland and sub-alpine habitats in the Alps and RAMs can independently or...

Oxidative costs of cooperation in cooperatively breeding Damaraland mole-rats

Rute Mendonça, Philippe Vullioud, Nathan Katlein, Armelle Vallat, Gaetan Glauser, Nigel Bennett & Fabrice Helfenstein
Within cooperatively breeding societies, individuals adjust cooperative contributions to maximise indirect fitness and minimize direct fitness costs. Yet, little is known about the physiological costs of cooperation, which may be detrimental to direct fitness. Oxidative stress, the imbalance between reactive oxygen species (by-products of energy production) and antioxidant protection, may represent such a cost when cooperative behaviours are energetically demanding. Oxidative stress can lead to the accumulation of cellular damage, compromising survival and reproduction, thus...

Effects of soil salinity on the expression of direct and indirect defences in wild cotton (Gossypium hirsutum)

Luis Abdala-Roberts, Teresa Quijano-Medina, Ted Turlings, Paula Sosenski, Luca Grandi, Jose Cervera & Xoaquin Moreira
Previous studies have reported effects of abiotic factors on herbivore-induced plant defences based on effects on single plant traits. However, plants commonly express multiple defences simultaneously and these traits are often correlated. Thus, a fuller understanding of abiotic-context dependency in plant defence requires measuring multiple traits and addressing their patterns of correlated expression. We evaluated the effects of soil salinity on the induction of direct (phenolic compounds, gossypol gland density) and indirect (volatile organic compounds,...

Eco-genetic additivity of diploids in allopolyploid wild wheats

Christian Parisod, Stella Huynh, Olivier Broennimann, Antoine Guisan & Francois Felber
Underpinnings of the distribution of allopolyploid species (hybrids with duplicated genome) along spatial and ecological gradients are elusive. As allopolyploid speciation combines the range of genetic and ecological characteristics of divergent diploids, allopolyploids initially show their additivity and are predicted to evolve differentiated ecological niches to establish in face of their competition. Here, we use four diploid wild wheats that differentially combined into four independent allopolyploid species to test for such additivity and assess the...

Registration Year

  • 2020
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Affiliations

  • University of Neuchâtel
    19
  • University of Bern
    3
  • Misión Biológica de Galicia
    2
  • Autonomous University of Yucatán
    2
  • University of Eastern Finland
    1
  • Wilfrid Laurier University
    1
  • University of Pretoria
    1
  • University of Münster
    1
  • Centre for Ecology and Hydrology
    1
  • Lund University
    1