Fish larval recruitment to reefs is a thyroid hormone-mediated metamorphosis sensitive to the pesticide chlorpyrifos
Guillaume Holzer
(1)
,
Marc Besson
(2, 1, 3)
,
Anne Lambert
(1)
,
Loïc François
(2)
,
Paul Barth
(1)
,
Benjamin Gillet
(1)
,
Sandrine Hughes
(1)
,
Gwenael Piganeau
(3)
,
François Leulier
(1)
,
Laurent Viriot
(1)
,
David Lecchini
(2, 4)
,
Vincent Laudet
(1)
Guillaume Holzer
- Fonction : Auteur
- PersonId : 779637
- IdRef : 190399147
Marc Besson
- Fonction : Auteur
- PersonId : 1177429
- IdHAL : marc-besson
- ORCID : 0000-0003-3381-322X
- IdRef : 229623735
Benjamin Gillet
- Fonction : Auteur
- PersonId : 765444
- ORCID : 0000-0002-6610-4537
Sandrine Hughes
- Fonction : Auteur
- PersonId : 742386
- IdHAL : sandrine-hughes
- ORCID : 0000-0003-3932-9180
- IdRef : 189991070
Gwenael Piganeau
- Fonction : Auteur
- PersonId : 741764
- IdHAL : gwenael-piganeau
- ORCID : 0000-0002-9992-4187
- IdRef : 070291098
Laurent Viriot
- Fonction : Auteur
- PersonId : 1208362
- IdHAL : laurent-viriot
David Lecchini
- Fonction : Auteur
- PersonId : 1194331
- ORCID : 0000-0002-6347-1112
- IdRef : 191538345
Résumé
Larval recruitment, the transition of pelagic larvae into reef-associated juveniles, is a critical step for the resilience of marine fish populations but its molecular control is unknown. Here, we investigate whether thyroid-hormones (TH) and their receptors (TR) coordinate the larval recruitment of the coral-reef-fish Acanthurus triostegus. We demonstrate an increase of TH-levels and TR-expressions in pelagic-larvae, followed by a decrease in recruiting juveniles. We generalize these observations in four other coral reef-fish species. Treatments with TH or TR-antagonist, as well as relocation to the open-ocean, disturb A. triostegus larvae transformation and grazing activity. Likewise, chlorpyrifos, a pesticide often encountered in coral-reefs, impairs A. triostegus TH-levels, transformation, and grazing activity, hence diminishing this herbivore’s ability to control the spread of reef-algae. Larval recruitment therefore corresponds to a TH-controlled metamorphosis, sensitive to endocrine disruption. This provides a framework to understand how larval recruitment, critical to reef-ecosystems maintenance, is altered by anthropogenic stressors.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Fish larval recruitment to reefs is a thyroid hormone-mediated metamorphosis sensitive to the pesticide chlorpyrifos
|
Résumé |
en
Larval recruitment, the transition of pelagic larvae into reef-associated juveniles, is a critical step for the resilience of marine fish populations but its molecular control is unknown. Here, we investigate whether thyroid-hormones (TH) and their receptors (TR) coordinate the larval recruitment of the coral-reef-fish Acanthurus triostegus. We demonstrate an increase of TH-levels and TR-expressions in pelagic-larvae, followed by a decrease in recruiting juveniles. We generalize these observations in four other coral reef-fish species. Treatments with TH or TR-antagonist, as well as relocation to the open-ocean, disturb A. triostegus larvae transformation and grazing activity. Likewise, chlorpyrifos, a pesticide often encountered in coral-reefs, impairs A. triostegus TH-levels, transformation, and grazing activity, hence diminishing this herbivore’s ability to control the spread of reef-algae. Larval recruitment therefore corresponds to a TH-controlled metamorphosis, sensitive to endocrine disruption. This provides a framework to understand how larval recruitment, critical to reef-ecosystems maintenance, is altered by anthropogenic stressors.
|
Auteur(s) |
Guillaume Holzer
1
, Marc Besson
2, 1, 3
, Anne Lambert
1
, Loïc François
2
, Paul Barth
1
, Benjamin Gillet
1
, Sandrine Hughes
1
, Gwenael Piganeau
3
, François Leulier
1
, Laurent Viriot
1
, David Lecchini
2, 4
, Vincent Laudet
1
1
IGFL -
Institut de Génomique Fonctionnelle de Lyon
( 39280 )
- Ecole Normale Supérieure de Lyon 46 allée d'Italie 69364 Lyon CEDEX07
- France
2
CRIOBE -
Centre de recherches insulaires et observatoire de l'environnement
( 107006 )
- BP 1013 Papetoiai 98729 PAPETOAI
- France
3
BIOM -
Biologie intégrative des organismes marins
( 219435 )
- 1 avenue de Fontaulé 66650 Banyuls sur mer
- France
4
LabEX CORAIL -
Laboratoire d'Excellence CORAIL
( 209113 )
- 58 avenue Paul Alduy 66860 Perpignan CEDEX - Tél. : 04 30 19 23 32 - contact@labex-corail.fr
- France
|
Volume |
6
|
Page/Identifiant |
e27595
|
Licence |
Paternité
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2017
|
Date de publication électronique |
2017-10-30
|
Domaine(s) |
|
DOI | 10.7554/eLife.27595 |
Origine :
Publication financée par une institution
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