Biological rhythms in the deep-sea hydrothermal mussel Bathymodiolus azoricus

Type Article
Date 2020-07
Language English
Author(s) Mat Audrey2, Sarrazin Jozee2, Markov Gabriel V.3, Apremont Vincent2, Dubreuil ChristineORCID2, Eché Camille4, Fabioux Caroline1, Klopp Christophe5, Sarradin Pierre-MarieORCID2, Tanguy Arnaud6, Huvet ArnaudORCID2, Matabos MarjolaineORCID2
Affiliation(s) 1 : Univ Brest, Ifremer, CNRS, IRD, LEMAR, F-29280, Plouzané, France
2 : Ifremer, EEP, F-29280, Plouzané, France
3 : Sorbonne Université, CNRS, Integrative Biology of Marine Models (LBI2M), Station Biologique de Roscoff (SBR), 29680, Roscoff, France
4 : GeT-PlaGe, Genotoul, INRA Auzeville, Auzeville, France
5 : INRA, Plate-forme Genotoul Bioinfo, UR875, Auzeville, France
6 : Sorbonne Université, CNRS, Lab. Adaptation et Diversité en Milieu Marin, Team ABICE, Station Biologique de Roscoff, 29680, Roscoff, France
Source Nature Communications (2041-1723) (Springer Science and Business Media LLC), 2020-07 , Vol. 11 , N. 1 , P. 3454 (12p.)
DOI 10.1038/s41467-020-17284-4
Abstract

Biological rhythms are a fundamental property of life. The deep ocean covers 66% of our planet surface and is one of the largest biomes. The deep sea has long been considered as an arrhythmic environment because sunlight is totally absent below 1,000 m depth. In the present study, we have sequenced the temporal transcriptomes of a deep-sea species, the ecosystem-structuring vent mussel Bathymodiolus azoricus. We reveal that tidal cycles predominate in the transcriptome and physiology of mussels fixed directly at hydrothermal vents at 1,688 m depth at the Mid-Atlantic Ridge, whereas daily cycles prevail in mussels sampled after laboratory acclimation. We identify B. azoricus canonical circadian clock genes, and show that oscillations observed in deep-sea mussels could be either a direct response to environmental stimulus, or be driven endogenously by one or more biological clocks. This work generates in situ insights into temporal organisation in a deep-sea organism.

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Publisher's official version 12 4 MB Open access
Supplementary Information 8 1 MB Open access
Peer Review File 25 1 MB Open access
Reporting Summary 4 209 KB Open access
Description of Additional Supplementary Files 19 KB Open access
Supplementary Data 1 254 KB Open access
Supplementary Data 2 36 KB Open access
Supplementary Data 3 68 KB Open access
Supplementary Data 4 224 KB Open access
Supplementary Movie 1 4 MB Open access
Supplementary Movie 2 28 MB Open access
Source Data 24 KB Open access
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Mat Audrey, Sarrazin Jozee, Markov Gabriel V., Apremont Vincent, Dubreuil Christine, Eché Camille, Fabioux Caroline, Klopp Christophe, Sarradin Pierre-Marie, Tanguy Arnaud, Huvet Arnaud, Matabos Marjolaine (2020). Biological rhythms in the deep-sea hydrothermal mussel Bathymodiolus azoricus. Nature Communications, 11(1), 3454 (12p.). Publisher's official version : https://doi.org/10.1038/s41467-020-17284-4 , Open Access version : https://archimer.ifremer.fr/doc/00640/75236/