Data from: Ecologically diverse and distinct neighbourhoods trigger persistent phenotypic consequences, and amine metabolic profiling detects themFrançoise Hennion, Isabelle Litrico, Igor Bartish, Alexandra Weigelt, Alain Bouchereau & Andreas Prinzing
1.Global change triggers rapid alterations in the composition and diversity of plant communities which may change ecosystem functioning. Do changes in community diversity also change traits persistently, i.e. does coexistence with numerous or functionally or phylogenetically distinct species trigger, in a given focal species, trait shifts that persist? 2.We studied the grass Dactylis glomerata. Dactylis was grown in experimental plots with different species compositions for five years, sampled, cloned and grown in a common garden....
Data from: Temporal sampling helps unravel the genetic structure of naturally occurring populations of a phytoparasitic nematode. 1. Insights from the estimation of effective population sizesPierre-Loup Jan, Cécile Gracianne, Sylvain Fournet, Eric Olivier, Jean-Francois Arnaud, Catherine Porte, Sylvie Bardou-Valette, Marie-Christine Denis & Eric J. Petit
The sustainability of modern agriculture relies on strategies that can control the ability of pathogens to overcome chemicals or genetic resistances through natural selection. This evolutionary potential, which depends partly on effective population size (Ne), is greatly influenced by human activities. In this context, wild pathogen populations can provide valuable information for assessing the long-term risk associated with crop pests. In this study, we estimated the effective population size of the beet cyst nematode, Heterodera...
Data from: Heterozygote deficits in cyst plant parasitic nematodes: possible causes and consequencesJosselin Montarry, Pierre-Loup Jan, Cécile Gracianne, Andrew D. J. Overall, Sylvie Bardou-Valette, Eric Olivier, Sylvain Fournet, Eric Grenier & Eric J. Petit
Deviations of genotypic frequencies from Hardy–Weinberg equilibrium (HWE) expectations could reveal important aspects of the biology of populations. Deviations from HWE due to heterozygote deficits have been recorded for three plant-parasitic nematode species. However, it has never been determined whether the observed deficits were due (i) to the presence of null alleles, (ii) to a high level of consanguinity and/or (iii) to a Wahlund effect. The aim of the present work was, while taking into...
Data from: Does sex-biased dispersal account for the lack of geographic and host-associated differentiation in introduced populations of an aphid parasitoid?Francisca Zepeda-Paulo, Blas Lavandero, Frédérique Mahéo, Emilie Dion, Yannick Outreman, Jean-Christophe Simon & Christian C. Figueroa
Host recognition and use in female parasitoids strongly relies on host fidelity, a plastic behavior which can significantly restrict the host preferences of parasitoids, thus reducing the gene flow between parasitoid populations attacking different insect hosts. However, the effect of migrant males on the genetic differentiation of populations has been frequently ignored in parasitoids, despite its known impact on gene flow between populations. Hence, we studied the extent of gene flow mediated by female and...
Institute for Genetics, Environment and Plant Protection4
Ecology and Ecosystem Health2
German Center for Integrative Biodiversity Research1
University of Talca1
French National Institute for Agricultural Research1
University Austral de Chile1
French National Centre for Scientific Research1
Institute of Botany1