A community perspective on the concept of marine holobionts: state-of-the-art, challenges, and future directions

Simon Dittami 1 Enrique Arboleda 2 Jean-Christophe Auguet 3 Arite Bigalke 4 Enora Briand 5 Paco Cárdenas 6 Ulisse Cardini 7 Johan Decelle 8 Ashwin Engelen 9 Damien Eveillard 10, 11 Claire Gachon 12 Sarah Griffiths 13 Tilmann Harder 14 Ehsan Kayal 15 Elena Kazamia 16 François Lallier 17 Mónica Medina 18 Ezequiel Marzinelli 19, 20, 21 Teresa Morganti 22 Laura Pons 7 Soizic Prado 23 José Pintado Valverde 24 Mahasweta Saha 25, 26 Marc-Andre Selosse 27, 28 Derek Skillings 29 Willem Stock 30 Shinichi Sunagawa 31 Eve Toulza 32 Alexey Vorobev 33 Catherine Leblanc 34 Fabrice Not 35
11 COMBI - Combinatoire et Bioinformatique
LS2N - Laboratoire des Sciences du Numérique de Nantes
17 ABICE - Adaptation et Biologie des Invertébrés en Conditions Extrêmes
ADMM - Adaptation et diversité en milieu marin
Abstract : Host-microbe interactions play crucial roles in marine ecosystems, but we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help describe and understand these complex systems. It posits that a host and its associated microbiota, living together in a long-lasting relationship, form the holobiont, and have to be studied together, as a coherent biological and functional unit, in order to understand the biology, ecology and evolution of the organisms. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We highlight the potential economic, sociological, and environmental impacts of the holobiont concept in marine biological, evolutionary, and environmental sciences with comparisons to terrestrial science whenever appropriate. A deeper understanding of such complex systems, however, will require further technological and conceptual advances. The most significant challenge will be to bridge functional research on simple and tractable model systems and global approaches. This will require scientists to work together as an (inter)active community in order to address, for instance, ecological and evolutionary questions and the roles of holobionts in biogeochemical cycles.
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Simon Dittami, Enrique Arboleda, Jean-Christophe Auguet, Arite Bigalke, Enora Briand, et al.. A community perspective on the concept of marine holobionts: state-of-the-art, challenges, and future directions. PeerJ Preprints, Computer Science Preprints., 2019, 7, pp.e27519v1. ⟨10.7287/peerj.preprints.27519v1⟩. ⟨hal-02169877⟩

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