3 Works

Data from: Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the NOW Polynya

Frederic Olivier, Blandine Gaillard, Julien Thébault, Tarik Meziane, Réjean Tremblay, Dany Dumont, Simon Bélanger, Michel Gosselin, Aurélie Jolivet, Laurent Chauvaud, André L. Martel, Søren Rysgaard, Anne-Hélène Olivier, Julien Pettré, Jérôme Mars, Silvain Gerber & Philippe Archambault
Climate changes in the Arctic may weaken the currently tight pelagic-benthic coupling. In response to decreasing sea ice cover, arctic marine systems are expected to shift from a ‘sea-ice algae-benthos’ to a ‘phytoplankton-zooplankton’ dominance. We used mollusk shells as bioarchives and fatty acid trophic markers to estimate the effects of the reduction of sea ice cover on the exported food to the seafloor. Bathyal bivalve Astarte moerchi that lives at 600 m depth in northern...

Low oxygen levels can help to prevent the detrimental effect of acute warming on mitochondrial efficiency in fish

Elisa Thoral, Damien Roussel, Christos Chinopoulos, Loïc Teulier & Karine Salin
Aerobic metabolism of aquatic ectotherms is highly sensitive to fluctuating climates. Many mitochondrial traits exhibit phenotypic plasticity in response to acute variations in temperature and oxygen availability. These responses are critical for understanding the effects of environmental variations on aquatic ectotherms performance. Using the European seabass, Dicentrarchus labrax, we determined the effects of acute warming and deoxygenation in vitro on mitochondrial respiratory capacities and mitochondrial efficiency to produce ATP (ATP/O ratio). We show that acute...

Independent domestication events in the blue-cheese fungus Penicillium roqueforti

Antoine Branca, Emilie Dumas, Alice Feurtey, Ricardo Rodriguez De La Vega, Stephanie Le Prieur, Alodie Snirc, Monika Coton, Anne Thierry, Emmanuel Coton, Mélanie Le Piver, Daniel Roueyre, Jeanne Ropars & Tatiana Giraud
Domestication provides an excellent framework for studying adaptive divergence. Using population genomics and phenotypic assays, we reconstructed the domestication history of the blue cheese mold Penicillium roqueforti. We showed that this fungus was domesticated twice independently. The population used in Roquefort originated from an old domestication event associated with weak bottlenecks and exhibited traits beneficial for pre-industrial cheese production (slower growth in cheese and greater spore production on bread, the traditional multiplication medium). The other...

Registration Year

  • 2020
    3

Resource Types

  • Dataset
    3

Affiliations

  • University of Western Brittany
    3
  • Ecologie, Systématique et Evolution
    1
  • University of Rennes 1
    1
  • Octoly (France)
    1
  • Semmelweis University
    1
  • Claude Bernard University Lyon 1
    1
  • Canadian Museum of Nature
    1
  • University of Manitoba
    1
  • Grenoble Images Parole Signal Automatique
    1
  • National Museum of Natural History
    1