KIT | KIT-Bibliothek | Impressum | Datenschutz

Finding Nemo’s clock reveals switch from nocturnal to diurnal activity

Schalm, Gregor; Bruns, Kristina; Drachenberg, Nina; Geyer, Nathalie; Foulkes, Nicholas S.; Bertolucci, Cristiano; Gerlach, Gabriele

Abstract:

Timing mechanisms play a key role in the biology of coral reef fish. Typically, fish larvae leave their reef after hatching, stay for a period in the open ocean before returning to the reef for settlement. During this dispersal, larvae use a time-compensated sun compass for orientation. However, the timing of settlement and how coral reef fish keep track of time via endogenous timing mechanisms is poorly understood. Here, we have studied the behavioural and genetic basis of diel rhythms in the clown anemonefish Amphiprion ocellaris. We document a behavioural shift from nocturnal larvae to diurnal adults, while juveniles show an intermediate pattern of activity which potentially indicates flexibility in the timing of settlement on a host anemone. qRTPCR analysis of six core circadian clock genes (bmal1, clocka, cry1b, per1b, per2, per3) reveals rhythmic gene expression patterns that are comparable in larvae and juveniles, and so do not reflect the corresponding activity changes. By establishing an embryonic cell line, we demonstrate that clown anemonefish possess an endogenous clock with similar properties to that of the zebrafish circadian clock. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000131118
Veröffentlicht am 12.04.2021
Originalveröffentlichung
DOI: 10.1038/s41598-021-86244-9
Scopus
Zitationen: 7
Web of Science
Zitationen: 6
Dimensions
Zitationen: 11
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Biologische und Chemische Systeme (IBCS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2045-2322
KITopen-ID: 1000131118
HGF-Programm 47.14.02 (POF IV, LK 01) Information Storage and Processing in the Cell Nucleus
Erschienen in Scientific Reports
Verlag Nature Research
Band 11
Heft 1
Seiten Art.-Nr.: 6801
Vorab online veröffentlicht am 24.03.2021
Nachgewiesen in Web of Science
Dimensions
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page