PAYTON, Laura; PERRIGAULT, Mickael; HOEDE, Claire; MASSABUAU, Jean-Charles; SOW, Mohamedou; HUVET, Arnaud; BOULLOT, Floriane; FABIOUX, Caroline; HEGARET, Helene; TRAN, Damien

doi:10.1038/s41598-017-03797-4

Environnements et Paléoenvironnements OCéaniques [EPOC]

PERRIGAULT, Mickael

Environnements et Paléoenvironnements OCéaniques [EPOC]

HOEDE, Claire
Unité de Mathématiques et Informatique Appliquées de Toulouse [MIAT INRA]
Plateforme Bio-Informatique - Génotoul

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Article de revue

Ce document a été publié dans

Scientific Reports. 2017-06-14, vol. 7, p. np

Résumé en anglais

As a marine organism, the oyster Crassostrea gigas inhabits a complex biotope governed by interactions between the moon and the sun cycles. We used next-generation sequencing to investigate temporal regulation of oysters under light/dark entrainment and the impact of harmful algal exposure. We found that approximate to 6% of the gills' transcriptome exhibits circadian expression, characterized by a nocturnal and bimodal pattern. Surprisingly, a higher number of ultradian transcripts were also detected under solely circadian entrainment. The results showed that a bloom of Alexandrium minutum generated a remodeling of the bivalve's temporal structure, characterized by a loss of oscillations, a genesis of de novo oscillating transcripts, and a switch in the period of oscillations. These findings provide unprecedented insights into the diurnal landscape of the oyster's transcriptome and pleiotropic remodeling due to toxic algae exposure, revealing the intrinsic plasticity of the cycling transcriptome in oysters.< Réduire

Mots clés en anglais

MAMMALIAN CIRCADIAN CLOCK

DIFFERENTIAL EXPRESSION ANALYSIS

PARALYTIC SHELLFISH TOXINS

GENE-EXPRESSION

SUPRACHIASMATIC NUCLEUS

FEEDING RESPONSES

MOUSE-LIVER

SHIFT WORK

DINOFLAGELLATE

RHYTHMS

URI

https://oskar-bordeaux.fr/handle/20.500.12278/201736

DOI

http://dx.doi.org/10.1038/s41598-017-03797-4

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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Remodeling of the cycling transcriptome of the oyster Crassostrea gigas by the harmful algae Alexandrium minutum

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Résumé en anglais

Mots clés en anglais

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DOI

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