Biological rhythms in the deep-sea hydrothermal mussel Bathymodiolus azoricus

Biological rhythms in the deep-sea hydrothermal mussel Bathymodiolus azoricus

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...

Full description

Saved in:
Bibliographic Details
Published in:Nature communications 2020-07, Vol.11 (1), p.3454-12, Article 3454
Main Authors: Mat, Audrey M, Sarrazin, Jozée, Markov, Gabriel V, Apremont, Vincent, Dubreuil, Christine, Eché, Camille, Fabioux, Caroline, Klopp, Christophe, Sarradin, Pierre-Marie, Tanguy, Arnaud, Huvet, Arnaud, Matabos, Marjolaine
Format: Article
Language:eng
Subjects:
Acclimation
Acclimatization
Animals
Bathymodiolus azoricus
Biodiversity and Ecology
Biological clocks
Biological rhythms
Circadian rhythms
Deep sea
Deep sea environments
Ecosystem
Environmental Sciences
Gene expression
Hydrothermal plumes
Hydrothermal Vents
Marine Biology
Mollusks
Mussels
Mytilidae - physiology
Organisms
Oscillations
Periodicity
Tidal cycles
Tidal oscillations
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2041-1723
2041-1723