Biological rhythms in the deep-sea hydrothermal mussel Bathymodiolus azoricus
Mat, A.M.; Sarrazin, J.; Markov, G.V.; Apremont, V.; Dubreuil, C.; Eché, C.; Fabioux, C.; Klopp, C.; Sarradin, P.-M.; Tanguy, A.; Huvet, A.; Matabos, M. (2020). Biological rhythms in the deep-sea hydrothermal mussel Bathymodiolus azoricus. Nature Comm. 11(1): 12 pp. https://dx.doi.org/10.1038/s41467-020-17284-4
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, more
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| Authors | | Top |
- Mat, A.M.
- Sarrazin, J.
- Markov, G.V.
- Apremont, V.
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- Dubreuil, C.
- Eché, C.
- Fabioux, C.
- Klopp, C.
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- Sarradin, P.-M.
- Tanguy, A.
- Huvet, A.
- Matabos, M.
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| 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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