41 Works

Pleotropism of gonadotropin action

Manuela Simoni, Elia Paradiso, Véronique Lockhart, Eric Reiter, Livio Casarini, Lucie Pellissier & Pascale Crépieux

Les circuits courts distants approvisionnant Paris

Adrien Baysse-Lainé & Pierre Guillemin

Land use changes threaten bird taxonomic and functional diversity across the Mediterranean basin: a spatial analysis to prioritize monitoring for conservation

Johanna Fusco, Walker Emily, Papaïx Julien, Debolini Marta, Bondeau Alberte & Barnagaud Jean-Yves
Land use changes rank among the highest threats to biodiversity, but assessment of their ecological impact is impaired by data paucity in vast regions of the world. For birds, land use changes may mean habitat loss or fragmentation, changes in resource availability and disruption of biotic interactions or dispersal pathways. As a result, avian population sizes and assemblage diversity decline in areas subjected to urbanization, agricultural intensification and land abandonment worldwide. This threat is especially...

Pathogen-mediated selection favours the maintenance of innate immunity gene polymorphism in a widespread wild ungulate

Erwan Quéméré, Pauline Hessenauer, Maxime Galan, Marie Fernandez, Joël Merlet, Yannick Chaval, Nicolas Morellet, Hélène Verheyden, Emmanuelle Gilot-Fromont & Nathalie Charbonnel
Toll-like Receptors (TLR) play a central role in recognition and host frontline defence against a wide range of pathogens. A number of recent studies have shown that TLR genes (Tlrs) often exhibit large polymorphism in natural populations. Yet, there is little knowledge on how this polymorphism is maintained and how it influences disease susceptibility in the wild. In previous work, we showed that some Tlrs exhibit similarly high levels of genetic diversity as genes of...

Agroecosystem diversification with legumes or non-legumes improves differently soil fertility according to soil type

Marie Sauvadet, Jean Trap, Gaëlle Damour, Claude Plassard, Karel Van Den Meersche, Raphaël Achard, Clémentine Allinne, Patrice Autfray, Isabelle Bertrand, Eric Blanchart, Péninna Deberdt, Séguy Enock, Jean-Daniel Essobo, Grégoire Freschet, Mickaël Hedde, Elias De Melo Virginio Filho, Bodovololona Rabary, Miora Rakotoarivelo, Richard Randriamanantsoa, Béatrice Rhino, Aude Ripoche, Elisabeth Rosalie, Stéphane Saj, Thierry Becquer, Philippe Tixier … & Jean-Michel Harmand
Plant diversification through crop rotation or agroforestry is a promising way to improve sustainability of agroecosystems. Nonetheless, criteria to select the most suitable plant communities for agroecosystems diversification facing contrasting environmental constraints need to be refined. Here, we compared the impacts of 24 different plant communities on soil fertility across six tropical agroecosystems: either on highly weathered Ferralsols, with strong P limitation, or on partially weathered soils derived from volcanic material, with major N limitation....

Data from: Fine-scale spatial genetic structure across the species range reflects recent colonization of high elevation habitats in silver fir (Abies alba Mill.)

Enikő I. Major, Mária Höhn, Camilla Avanzi, Bruno Fady, Katrin Heer, Lars Opgenoorth, Andrea Piotti, Flaviu Popescu, Dragos Postolache, Giovanni G. Vendramin & Katalin Csilléry
Variation in genetic diversity across species ranges has long been recognized as highly informative for assessing populations’ resilience and adaptive potential. The spatial distribution of genetic diversity within populations, referred to as fine-scale spatial genetic structure (FSGS), also carries information about recent demographic changes, yet it has rarely been connected to range scale processes. We studied eight silver fir (Abies alba Mill.) population pairs (sites), growing at high and low elevations, representative of the main...

Data for: Advanced infections by cucurbit yellow stunting disorder virus encourage whitefly vector colonization while discouraging non-vector aphid competitors

Kerry Mauck, Quentin Chesnais & Penglin Sun
Plant viruses can change hosts in ways that increase vector contacts, virion acquisition, and subsequent vector dispersal to susceptible hosts. Based on this, researchers have proposed that virus-induced phenotypes are the product of adaptations to “manipulate” hosts in ways that increase transmission. Theoretical models of virus spread in crops support this proposition; “manipulative” viruses spread faster and to a greater extent. However, both empirical and theoretical studies on manipulation are disproportionately focused on a few...

A trait-based framework for predicting foodborne pathogen risk from wild birds

Olivia Smith, Elissa Olimpi, Nora Navarro-González, Kevin Cornell, Luke Frishkoff, Tobin Northfield, Timothy Bowles, Max Edworthy, Johnna Eilers, Zhen Fu, Karina Garcia, David Gonthier, Matthew Jones, Christina Kennedy, Christopher Latimer, Jeb Owen, Chika Sato, Joseph Taylor, Erin Wilson Rankin, William Snyder & Daniel Karp
Recent foodborne illness outbreaks have heightened pressures on growers to deter wildlife from farms, jeopardizing conservation efforts. However, it remains unclear which species, particularly birds, pose the greatest risk to food safety. Using >11,000 pathogen tests and 1,565 bird surveys covering 139 bird species from across the western U.S.A., we examined the importance of 11 traits in mediating wild bird risk to food safety. We tested whether traits associated with pathogen exposure (e.g., habitat associations,...

When expansion stalls: an extension to the concept of range pinning in ecology

Thibaut Morel-Journel, Marjorie Haond, Laurent Lamy, David Muru, Lionel Roques, Ludovic Mailleret & Elodie Vercken
Identifying the factors modulating range expansion is essential to accurately predict changes in the spatial distribution of populations. By preventing population growth after dispersal, Allee effects can lead to front stops in discrete space, called ’pinning’ if permanent. However, other mechanisms, such as positive density-dependent dispersal, have also been shown to affect the rate of range expansion and generate discrete-space front stops, albeit temporarily. In this study, we investigated the stability of the front stops...

Bryophyte microecosystem experiment

Adam Vanbergen, Claire Boissieres, Alan Gray & Daniel Chapman
Ecosystems face multiple, potentially interacting, anthropogenic pressures that can modify biodiversity and ecosystem functioning. Using a bryophyte-microarthropod microecosystem we tested the combined effects of habitat loss, episodic heat-shocks and an introduced non-native apex predator on ecosystem function (chlorophyll fluorescence as an indicator of photosystem II function) and microarthropod communities (abundance and body size). Photosynthetic function was degraded by the sequence of heat-shock episodes, but unaffected by microecosystem patch size or top-down pressure from the introduced...

Data from: Land-use legacies influence tree water-use efficiency and nitrogen dynamics in recently established European forests

Rossella Guerrieri, Marta Correia, Irene Martín-Forés, Raquel Alfaro-Sánchez, Joan Pino, Arndt Hampe, Fernando Valladares & Josep Espelta
1. Forest regrowth following farmland (agriculture and pasture) abandonment has been positively associated with a number of processes including the regulation of hydrological cycling, the enhancement of soil functioning, and an increase in forest productivity and carbon (C) sequestration. Although these changes in ecosystem functioning post-farmland abandonment have been observed in multiple locations and studies, the ecophysiological basis underpinning these patterns remains unclear. Here, we examine whether increased forest expansion following pastureland abandonment is associated...

Place des agricultures européennes dans le monde à l’horizon 2050

Anaïs Tibi, Agneta Forslund, Philippe Debaeke , Bertrand Schmitt & Hervé Guyomard

Adaptation and correlated fitness responses over two time scales in Drosophila suzukii populations evolving in different environments

Laure Olazcuaga, Julien Foucaud, Mathieu Gautier, Candice Deschamps, Anne Loiseau, Nicolas Leménager, Benoit Facon, Virginie Ravigné, Ruth A. Hufbauer, Arnaud Estoup & Nicolas O. Rode
The process of local adaptation involves differential changes in fitness over time across different environments. While experimental evolution studies have extensively tested for patterns of local adaptation at a single time point, there is relatively little research that examines fitness more than once during the time course of adaptation. We allowed replicate populations of the fruit pest Drosophila suzukii to evolve in one of eight different fruit media. After five generations, populations with the highest...

RAD-seq data from: Evidence of local adaptation despite strong drift in a Neotropical patchily distributed bromeliad

Bárbara Simões Santos Leal, Cleber Juliano Neves Chaves, Vanessa Araujo Graciano, Christophe Boury, Luis Alberto Pillaca Huacre, Myriam Heuertz & Clarisse Palma-Silva
Both genetic drift and divergent selection are predicted to be drivers of population differentiation across patchy habitats, but the extent to which these forces act on natural populations to shape traits is strongly affected by species' ecological features. In this study, we infer the genomic structure of Pitcairnia lanuginosa, a widespread herbaceous perennial plant with a patchy distribution. We sampled populations in the Brazilian Cerrado and the Central Andean Yungas and discovered and genotyped SNP...

Genetic diversity and population structure in Vitis species illustrate phylogeographic patterns in eastern North America

Jean-Pierre Peros, Peter Cousins, Amandine Launay, Philippe Cubry, Andrew Walker, Emilce Prado, Elisa Peressotti, Sabine Wiedemann-Merdinoglu, Valérie Laucou, Didier Merdinoglu, Patrice This, Jean-Michel Boursiquot & Agnès Doligez
Geographical distribution and diversity of current plant species have been strongly shaped by climatic oscillations during the Quaternary. Analyzing the resulting divergence among species and differentiation within species is crucial to understand the evolution of taxa like the Vitis genus, which provides very useful genetic resources for grapevine improvement and might reveal original recolonization patterns due to growth habit and dispersal mode. Here, we studied the genetic structure in natural populations of three species from...

Long-read genome sequencing of bread wheat facilitates disease resistance gene cloning

Naveenkumar Athiyannan, Michael Abrouk, Willem H. P. Boshoff, Stéphane Cauet, Nathalie Rodde, David A. Kudrna, Nahed Mohammed, Jan Bettgenhaeuser, Kirsty Botha, Shannon Derman, Rod A. Wing, Renée Prins & Simon G. Krattinger
Cloning agronomically important genes from large, complex crop genomes remains challenging. Here, we generate a 14.7-gigabase chromosome-scale assembly of the South African bread wheat (Triticum aestivum) cultivar Kariega by combining high-fidelity long reads, optical mapping, and chromosome conformation capture. The resulting assembly is an order of magnitude more contiguous than previous wheat assemblies. Kariega shows durable resistance against the devastating fungal stripe rust disease. We identified the race-specific disease resistance gene Yr27, encoding an intracellular...

Interspecific interactions regulate plant reproductive allometry in cereal-legume intercropping systems

Noémie Gaudio, Cyrille Violle, Xavier Gendre, Florian Fort, Rémi Mahmoud, Elise Pelzer, Safia Médiène, Henrik Hauggaard-Nielsen, Laurent Bedoussac, Catherine Bonnet, Guénaëlle Corre-Hellou, Antoine Couëdel, Philippe Hinsinger, Eric Steen Jensen, Etienne-Pascal Journet, Eric Justes, Bochra Kammoun, Isabelle Litrico, Nathalie Moutier, Christophe Naudin & Pierre Casadebaig
1. Calls for the application of ecological principles in agriculture have gained momentum. Intercropping systems are designed by growing two, or more, annual crop species in the same field, aiming for a better resource use efficiency. However, assembly rules for their design are lacking. Notably, it is unknown whether species performances are maximized during both the vegetative and reproductive phases given the sensitivity of reproductive allocation rules to resource limitation. Interestingly, ecological theory provides expectations...

Etude technico-économique sur l'opportunité de récupération des métaux contenus dans les eaux usées domestiques

Elodie Varennes, Denise Blanc-Biscarat, Lucie Gueret, Céline Lagarrigue & Jean-Marc Choubert

How to make a little worm pump like a big worm

Georg von Samson-Himmelstjerna, Alexander P. Gerhard, Jürgen Krücken, Claude Charvet & cedric neveu

Adaptive population structure shifts in invasive parasitic mites, Varroa destructor

Arrigo Moro, Tjeerd Blacquière, Bjorn Dahle, Vincent Dietemann, Yves Le Conte, Locke Barbara, Peter Neumann & Alexis Beaurepaire
Comparative studies of genetic diversity and population structure can shed light on the ecological and evolutionary factors governing host–parasite interactions. Even though invasive parasites are considered of major biological importance, little is known about their adaptive potential when infesting the new hosts. Here, the genetic diversification of Varroa destructor, a novel parasite of Apis mellifera originating from Asia, was investigated using population genetics to determine how the genetic structure of the parasite changed in distinct...

Data from: Biogeographic history and habitat specialisation shape floristic and phylogenetic composition across Amazonian forests

Christopher Baraloto, Jason Vleminckx, Julien Engel, Pascal Petronelli, Nállarett Dávila, Marcos Ríos, Elvis Harry Valderrama Sandoval, Italo Mesones, Juan Ernesto Guevara Andino, Claire Fortunel, Elodie Allie, C. E. Timothy Paine, Aurélie Dourdain, Jean-Yves Goret, Oscar J. Valverde-Barrantes, Freddie Draper & Paul V. A. Fine
A major challenge remains to understand the relative contributions of history, dispersal and environmental filtering to the assembly of hyperdiverse communities across spatial scales. Here, we examine the extent to which biogeographical history and habitat specialization have generated turnover among and within lineages of Amazonian trees across broad geographic and environmental gradients. We replicated standardised tree inventories in 102 0.1-ha plots located in two distant regions - the western Amazon and the eastern Guiana shield....

Competition and facilitation among fungal plant parasites affect their life-history traits

Agathe Dutt, Rault Anthony, Didier Andrivon, Stéphane Jumel, Gwenola Le Roy, Alain Baranger, Melen Leclerc & Christophe Le May
Multi-infections may result in either competitive exclusion or coexistence on the same host of pathogen genotypes belonging to the same or different species. Epidemiological consequences of multiple infections, particularly how the development and transmission of a pathogen can be modified by the presence of another pathogen, are well documented. However, understanding how life history strategies of each pathogen modulate co-infection outcomes remains quite elusive. To analyze how co-infection drives changes in life history traits and...

Plant dispersal syndromes are unreliable as predictors of zoochory and long-distance dispersal by ungulates and waterbirds

Andy J. Green, Christophe Baltzinger & Ádám Lovas-Kiss
Plant dispersal syndromes are allocated based on diaspore morphology and used to predict mechanisms of dispersal. Many authors assume that only angiosperms with endozoochory, epizoochory or anemochory syndromes have a long-distance dispersal (LDD) mechanism. Too much faith is often placed in classical syndromes to explain historical dispersal events and to predict future ones. The “endozoochory syndrome” is actually a “frugivory syndrome” and has often diverted attention from endozoochory by non-frugivores (e.g. waterbirds and large herbivores)...

I alternate therefore I generalize: how the intrinsic resistance risk of fungicides counterbalances their durability

Agathe Ballu, Philomène Despréaux, Clémentine Duplaix, Anne Dérédec, Florence Carpentier & Anne-Sophie Walker
The evolution of resistance to pesticides is a major burden in agriculture. Resistance management involves maximizing selection pressure heterogeneity, particularly by combining active ingredients with different modes of action. We tested the hypothesis that alternation may delay the build-up of resistance not only by spreading selection pressure over longer periods, but also by decreasing the rate of evolution of resistance to alternated fungicides, by applying an experimental evolution approach to the economically important crop pathogen...

Registration Year

  • 2021
    41

Resource Types

  • Dataset
    30
  • Text
    6
  • Report
    3
  • Book Chapter
    1
  • Journal Article
    1

Affiliations

  • National Research Institute for Agriculture, Food and Environment
    41
  • Centre de Coopération Internationale en Recherche Agronomique pour le Développement
    4
  • Centre d'Ecologie Fonctionnelle et Evolutive
    2
  • University of California, Berkeley
    2
  • World Agroforestry Centre
    2
  • Grenoble Alpes University
    2
  • Swedish University of Agricultural Sciences
    2
  • University of California, Riverside
    2
  • University of California, Davis
    2
  • Institut National de la Recherche Agronomique
    2