24 Works

Data from: QTL mapping of volatile compound production in Saccharomyces cerevisiae during alcoholic fermentation

Matthias Eder, Isabelle Sanchez, Claire Brice, Carole Camarasa, Jean-Luc Legras & Sylvie Dequin
Background: The volatile metabolites produced by Saccharomyces cerevisiae during alcoholic fermentation, which are mainly esters, higher alcohols and organic acids, play a vital role in the quality and perception of fermented beverages, such as wine. Although the metabolic pathways and genes behind yeast fermentative aroma formation are well described, little is known about the genetic mechanisms underlying variations between strains in the production of these aroma compounds. To increase our knowledge about the links between...

Data from: Feedback between environment and traits under selection in a seasonal environment: consequences for experimental evolution

Dorian Collot, Thibault Nidelet, Johan Ramsayer, Olivier Martin, Sylvie Méléard, Christine Dillmann, Delphine Sicard, Judith Legrand & Olivier C. Martin
Batch cultures are frequently used in experimental evolution. Even though they are generally considered to simply drive a growth rate increase, traits evolution can be more complex. Indeed, recurrent batches form a seasonal environment as different phases repeat periodically and different traits can be under selection in the different seasons. Moreover, during culture the impact of organisms on the environment is important since the system is closed. Thus, the study of adaptation should take into...

Data from: Variation in host plant usage and diet breadth predict sibling preference and performance in the neotropical tortoise beetle Chelymorpha alternans (Coleoptera: Chrysomelidae: Cassidinae)

Colin R. Morrison, Clement Aubert & Donald M. Windsor
Specialized interactions between insects and the plants that they consume are one of the most ubiquitous and consequential ecological associations on the plant. Decades of investigation suggest that a narrow diet favors an individual phytophagous insect’s performance relative to a dietary generalist. However, this body of research has tended to approach questions of diet breadth and host usage from the perspective of temperate plant – insect associations. Relationships between diet breadth, host usage and variation...

Data from: Parallel pattern of differentiation at a genomic island shared between clinal and mosaic hybrid zones in a complex of cryptic seahorse lineages

Florentine Riquet, Cathy Liautard-Haag, Lucy Woodall, Carmen Bouza, Patrick Louisy, Bojan Hamer, Francisco Otero-Ferrer, Philippe Aublanc, Vickie Béduneau, Olivier Briard, Tahani El Ayari, Sandra Hochscheid, Khalid Belkhir, Sophie Arnaud-Haond, Pierre-Alexandre Gagnaire & Nicolas Bierne
Diverging semi-isolated lineages either meet in narrow clinal hybrid zones, or have a mosaic distribution associated with environmental variation. Intrinsic reproductive isolation is often emphasized in the former and local adaptation in the latter, although both can contribute to isolation. Rarely these two patterns of spatial distribution are reported in the same study system. Here we report that the long-snouted seahorse Hippocampus guttulatus is subdivided into discrete panmictic entities by both types of hybrid zones....

Data from: Functional traits and environmental conditions predict community isotopic niches and energy pathways across spatial scales

Olivier Dézerald, Diane S. Srivastava, Régis Céréghino, Jean-François Carrias, Bruno Corbara, Vinicius F. Farjalla, Céline Leroy, Nicholas A. C. Marino, Gustavo C. O. Piccoli, Barbara A. Richardson, Michael J. Richardson, Gustavo Q. Romero & Angélica L. González
1. Despite ongoing research in food web ecology and functional biogeography, the links between food-web structure, functional traits and environmental conditions across spatial scales remain poorly understood. Trophic niches, defined as the amount of energy and elemental space occupied by species and food webs, may help bridge this divide. 2. Here, we ask how the functional traits of species, the environmental conditions of habitats and the spatial scale of analysis jointly determine the characteristics of...

Data from: Genomic and geographic footprints of differential introgression between two divergent fish species (Solea spp.)

Ahmed Souissi, François Bonhomme, Manuel Manchado, Lilia Bahri-Sfar & Pierre-Alexandre Gagnaire
Investigating variation in gene flow across the genome between closely related species is important to understand how reproductive barriers shape genome divergence before speciation is complete. An efficient way to characterize differential gene flow is to study how the genetic interactions that take place in hybrid zones selectively filter gene exchange between species, leading to heterogeneous genome divergence. In the present study, genome-wide divergence and introgression patterns were investigated between two sole species, Solea senegalensis...

Data from: Overestimation of the adaptive substitution rate in fluctuating populations

Marjolaine Rousselle, Maeva Mollion, Benoit Nabholz, Thomas Bataillon & Nicolas Galtier
Estimating the proportion of adaptive substitutions (α) is of primary importance to uncover the determinants of adaptation in comparative genomic studies. Several methods have been proposed to estimate α from patterns polymorphism and divergence in coding sequences. However, estimators of α can be biased when the underlying assumptions are not met. Here we focus on a potential source of bias, i.e., variation through time in the long term population size (N) of the considered species....

Data from: Timing malaria transmission with mosquito fluctuations

Romain Pigeault, Quentin Caudron, Nicot Antoine, Ana Rivero, Sylvain Gandon & Antoine Nicot
Temporal variations in the activity of arthropod vectors can dramatically affect the epidemiology and evolution of vector-borne pathogens. Here we explore the “Hawking hypothesis” stating that these pathogens may evolve the ability to time investment in transmission to match the activity of their vectors. First, we use a theoretical model to identify the conditions promoting the evolution of time-varying transmission strategies in pathogens. Second, we experimentally test the “Hawking hypothesis” by monitoring the within-host dynamics...

Data from: The hidden side of a major marine biogeographic boundary: a wide mosaic hybrid zone at the Atlantic–Mediterranean divide reveals the complex interaction between natural and genetic barriers in mussels

Tahani El Ayari, Najoua Trigui El Menif, Bojan Hamer, Abigail E. Cahill & Nicolas Bierne
The Almeria-Oran Front (AOF) is a recognised hotspot of genetic differentiation in the sea. It is a barrier to dispersal and an ecological boundary, which explain the position of genetic breaks. However, the maintenance of genetic differentiation is likely reinforced by genetic barriers. A general drawback of previous studies is an insufficient density of sampling sites at the transition zone with a conspicuous lack of samples from the southern coastline. We analysed the genetic structure...

Data from: A combinatorial analysis using observational data identifies species that govern ecosystem functioning

Benoît Jaillard, Philippe Deleporte, Michel Loreau & Cyrille Violle
Understanding the relationship between biodiversity and ecosystem functioning has so far resulted from two main approaches: the analysis of species' functional traits, and the analysis of species interaction networks. Here we propose a third approach, based on the association between combinations of species or of functional groups, which we term assembly motifs, and observed ecosystem functioning. Each assembly motif describes a biotic environment in which species interactions have particular effects on a given ecosystem function....

Data from: When is the best time to flower and disperse? a comparative analysis of plant reproductive phenology in the Mediterranean

Jules Segrestin, Maud Bernard-Verdier, Cyrille Violle, Jean Richarte, Marie-Laure Navas & Eric Garnier
1. The phenology of organisms corresponds to the temporal match between the components of their life cycle and the seasonal distribution of resources and hazards. Flowering has been extensively studied to describe the reproductive phenology of plants, but in comparison, other key events for reproductive success such as the seed maturation period and the time of seed dispersal have been considerably less investigated. 2. This study describes the temporal sequence of onset of flowering and...

Data from: Electrically induced verbal perseveration: a striatal deafferentation model

Emmanuel Mandonnet, Guillaume Herbet, Sylvie Moritz-Gasser, Isabelle Poisson, Francois Rheault & Hugues Duffau
Objective: The present study aimed to elucidate the neural correlates of the deafferentation cognitive model of verbal perseveration (VP) by analyzing the connectomics of the sites where electrical stimulation elicited VP during awake left glioma surgery. Methods: We retrospectively reviewed the anatomical sites that generated VP when electrically stimulated, in a series of 21 patients operated on while awake for a left glioma. Each stimulation point was manually located on the postoperative MRI and then...

Data from: Use of hidden Markov capture-recapture models to estimate abundance in presence of uncertainty: application to estimating the prevalence of hybrids in animal populations

Nina Luisa Santostasi, Paolo Ciucci, Romolo Caniglia, Elena Fabbri, Luigi Molinari, Willy Reggioni & Olivier Gimenez
Estimating the relative abundance (prevalence) of different population segments is a key step in addressing fundamental research questions in ecology, evolution, and conservation. The raw percentage of individuals in the sample (naive prevalence) is generally used for this purpose, but it is likely to be subject to two main sources of bias. First, the detectability of individuals is ignored; second, classification errors may occur due to some inherent limits of the diagnostic methods. We developed...

Data from: Macroecology of birds potentially susceptible to the West Nile Virus

María J. Tolsá, Gabriel E. García-Peña, Oscar Rico-Chavez, Benjamin Roche & Gerardo Suzán
Zoonotic diseases transmitted by wildlife affect biological conservation, public and animal health, and the economy. Current research efforts are aimed at finding wildlife pathogens at a given location. However, a meta-analytical approach may reveal emerging macroecological patterns in the host-pathogen relationship at different temporal and spatial scales. West Nile Virus (WNV) is a pathogen with worldwide detrimental impacts on bird populations. To understand macroecological patterns driving WNV infection, we aimed to recognise unknown competent reservoirs...

Data from: Pleistocene origins of chorusing diversity in Mediterranean bush-cricket populations (Ephippiger diurnus)

Yareli Esquer-Garrigos, Rejane Streiff, Virginie Party, Sabine Nidelet, Miguel Navascués & Michael D. Greenfield
We studied the Pleistocene diversification of a relatively endemic Mediterranean insect (Ephippiger diurnus ; Orthoptera: Tettigoniidae) to understand how species with restricted range may nonetheless exhibit the complex phylogeography normally associated with broad distribution. A time-calibrated molecular phylogeny based on two mitochondrial genes showed that E. diurnus diverged into two major clades, distinguished largely be male song, before or early during the Pleistocene. Several subclades also diverged before the most recent glacial period. Data from...

Data from: Genetic diversity and population divergences of an indigenous tree (Coffea mauritiana) in Reunion Island: role of climatic and geographical factors

Edith Garot, Thierry Joët, Marie-Christine Combes & Philippe Lashermes
Oceanic islands are commonly considered as natural laboratories for studies on evolution and speciation. The evolutionary specificities of islands associated with species biology provide unique scenarios to study the role of geography and climate in driving population divergence. However, few studies have addressed this subject in small oceanic islands with heterogeneous climates. Being widely distributed in Reunion Island forest, Coffea mauritiana represents an interesting model case for investigating patterns of within-island differentiation at small spatial...

Data from: Pollination along an elevational gradient mediated both by floral scent and pollinator compatibility in the fig and fig‐wasp mutualism

Daniel Souto-Vilarós, Magali Proffit, Bruno Buatois, Michal Rindos, Mentap Sisol, Thomas Kuyaiva, Jan Michalek, Clive T. Darwell, Martine Hossaert-Mckey, George D. Weiblen, Vojtech Novotny, Simon T. Segar & Brus Isua
In the fig (Moraceae) and fig‐wasp (Agaonidae) mutualism, scent is believed to be of primary importance in pollinator attraction and maintenance of species specificity. Scent divergence between closely related Ficus species seems sufficient in promoting reproductive isolation through pollinator behaviour, starting the process of speciation. We investigated volatile organic compound (VOC) variation from figs in several Ficus species endemic to Papua New Guinea. Sister species of section Papuacyse and subspecies of Ficus trichocerasa substitute each...

Data from: Co-occurrence among three divergent plant-castrating fungi in the same silene host species

Jessica L. Abbate, Pierre Gladieux, Michael E. Hood, Damien M. De Vienne, Janis Antonovics, Alodie Snirc & Tatiana Giraud
The competitive exclusion principle postulates that different species can only coexist in sympatry if they occupy distinct ecological niches. The goal of this study was to understand the geographical distribution of three species of Microbotryum anther-smut fungi that are distantly related but infect the same host plants, the sister species Silene vulgaris and S. uniflora, in western Europe. We used microsatellite markers to investigate pathogen distribution in relation to host specialization and ecological factors. Microbotryum...

Data from: Plasmodium vivax-like genome sequences shed new insights into Plasmodium vivax biology and evolution

Aude Gilabert, Thomas D. Otto, Gavin G. Rutledge, Blaise Franzon, Benjamin Ollomo, Céline Arnathau, Patrick Durand, Nancy D. Moukodoum, Alain-Prince Okouga, Barthélémy Ngoubangoye, Boris Makanga, Larson Boundenga, Christophe Paupy, François Renaud, Franck Prugnolle & Virginie Rougeron
Although Plasmodium vivax is responsible for the majority of malaria infections outside Africa, little is known about its evolution and pathway to humans. Its closest genetic relative, Plasmodium vivax-like, was discovered in African great apes and is hypothesized to have given rise to P. vivax in humans. To unravel the evolutionary history and adaptation of P. vivax to different host environments, we generated using long and short read sequence technologies two new P. vivax-like reference...

Data from: Deciphering host-parasitoid interactions and parasitism rates of crop pests using DNA metabarcoding

Ahmadou Sow, Thierry Brévault, Laure Benoit, Marie-Pierre Chapuis, Maxime Galan, Armelle Coeur D'Acier, Gérard Delvare, Mbacké Sembène & Julien Haran
An accurate estimation of parasitism rate and diversity in insect pests is a prerequisite to explore processes leading to efficient natural biocontrol. While traditional methods, such as rearing, is often limited to taxonomic identification, mortality and intensive work. The advent of high-throughput sequencing (HTS) techniques, such as DNA metabarcoding, is increasingly seen as a reliable and powerful alternative approach. However, benefits from such an approach to estimate parasitism rate and diversity in an agricultural context...

Data from: Community-wide scan identifies fish species associated with coral reef services across the Indo-Pacific

Eva Maire, Sébastien Villéger, Nicholas A.J. Graham, Andrew S. Hoey, Joshua Cinner, Sebastian C.A. Ferse, Catherine Aliaume, David J. Booth, David A. Feary, Michel Kulbicki, Stuart A. Sandin, Laurent Vigliola, David Mouillot & Sebastian C. A. Ferse
Determining whether many functionally complementary species or only a subset of key species are necessary to maintain ecosystem functioning and services is a critical question in community ecology and biodiversity conservation. Identifying such key species remains challenging, especially in the tropics where many species co-occur and can potentially support the same or different processes. Here, we developed a new community-wide scan (CWS) approach, analogous to the genome-wide scan, to identify fish species that significantly contribute,...

Data from: Dry-season decline in tree sapflux is correlated with leaf turgor loss point in a tropical rainforest

Isabelle Maréchaux, Damien Bonal, Megan K. Bartlett, Benoît Burban, Sabrina Coste, Elodie A. Courtois, Maguy Dulormne, Jean-Yves Goret, Eléonore Mira, Ariane Mirabel, Lawren Sack, Clément Stahl & Jerome Chave
1. Water availability is a key determinant of forest ecosystem function and tree species distributions. While droughts are increasing in frequency in many ecosystems, including in the tropics, plant responses to water supply vary with species and drought intensity, and are therefore difficult to model. Based on physiological first principles, we hypothesized that trees with a lower turgor loss point (πtlp), i.e., a more negative leaf water potential at wilting, would maintain water transport for...

Data from: Effect of pollination strategy, phylogeny and distribution on pollination niches of Euro-Mediterranean orchids

Nina Joffard, Francois Massol, Matthias Grenié, Claudine Montgelard & Bertrand Schatz
1. Pollination niches are important components of ecological niches and have played a major role in the diversification of Angiosperms. In this study, we focused on Euro-Mediterranean orchids, which use diverse pollination strategies and interact with various functional groups of insects. In these orchids, we investigated the determinants of pollination niche breadth and overlap by analysing the orchid-pollinator network and the factors that may have shaped it. 2. We constructed a database reporting 1278 interactions...

Data from: Population-level dynamics in experimental mixed infections: evidence for competitive exclusion among bacterial parasites of Paramecium caudatum

Alison B. Duncan, Eike Dusi, Martina Schrallhammer, Thomas Berendonk & Oliver Kaltz
Parasites frequently share their host populations with other parasites. However, little is known about how different parasites respond to competition with diverse competitor species in the within-host and between-host environments. We explored the repeatability of competition by simultaneously exposing microcosm populations of the ciliate Paramecium caudatum to pairs of parasites from the Holospora species complex (H. undulata, H. caryophila and H. obtusa) affected the persistence and prevalence of each compared to single infections, across three...

Registration Year

  • 2018

Resource Types

  • Dataset


  • University of Montpellier
  • French National Centre for Scientific Research
  • AgroParisTech
  • Princeton University
  • Paul Sabatier University
  • Centre de Coopération Internationale en Recherche Agronomique pour le Développement
  • University of Antwerp
  • The University of Texas at Austin
  • Université de Sherbrooke
  • Université Paul-Valéry Montpellier