Functional characterization of the circadian clock in the Antarctic krill, Euphausia superba.

ABSTRACT: Antarctic krill (Euphausia superba) is a key species in Southern Ocean ecosystem where it plays a central role in the Antarctic food web. Available information supports the existence of an endogenous timing system in krill enabling it to synchronize metabolism and behavior with an environment characterized by extreme seasonal changes in terms of day length, food availability, and surface ice extent. A screening of our transcriptome database "KrillDB" allowed us to identify the putative orthologues of 20 circadian clock components. Mapping of conserved domains and phylogenetic analyses strongly supported annotations of the identified sequences. Luciferase assays and co-immunoprecipitation experiments allowed us to define the role of the main clock components. Our findings provide an overall

SUBMITTER: Biscontin A 

PROVIDER: S-EPMC5735174 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature