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Regulation of polyp-to-jellyfish transition in Aurelia aurita
Fuchs, B.; Wang, W.; Graspeuntner, S.; Li, Y.; Insua, S.; Herbst, E.-M.; Dirksen, P.; Böhm, A.-M.; Hemmrich, G.; Sommer, F.; Domazet-Loso, T.; Klostermeier, U.C.; Anton-Erxleben, F.; Rosenstiel, P.; Bosch, T.C.G.; Khalturin, K. (2014). Regulation of polyp-to-jellyfish transition in Aurelia aurita. Curr. Biol. 24(3): 263-273. hdl.handle.net/10.1016/j.cub.2013.12.003
In: Current Biology. Cell Press: London. ISSN 0960-9822, more
Peer reviewed article  

Available in Authors 

Keywords
    Aurelia aurita (Linnaeus, 1758) [WoRMS]; Marine

Authors  Top 
  • Fuchs, B.
  • Wang, W.
  • Graspeuntner, S.
  • Li, Y.
  • Insua, S.
  • Herbst, E.-M.
  • Dirksen, P.
  • Böhm, A.-M.
  • Hemmrich, G.
  • Sommer, F.
  • Domazet-Loso, T.
  • Klostermeier, U.C.
  • Anton-Erxleben, F.
  • Rosenstiel, P.
  • Bosch, T.C.G.
  • Khalturin, K.

Abstract
    BackgroundThe life cycle of scyphozoan cnidarians alternates between sessile asexual polyps and pelagic medusa. Transition from one life form to another is triggered by environmental signals, but the molecular cascades involved in the drastic morphological and physiological changes remain unknown.ResultsWe show in the moon jelly Aurelia aurita that the molecular machinery controlling transition of the sessile polyp into a free-swimming jellyfish consists of two parts. One is conserved and relies on retinoic acid signaling. The second, novel part is based on secreted proteins that are strongly upregulated prior to metamorphosis in response to the seasonal temperature changes. One of these proteins functions as a temperature-sensitive "timer" and encodes the precursor of the strobilation hormone of Aurelia.ConclusionsOur findings uncover the molecule framework controlling the polyp-to-jellyfish transition in a basal metazoan and provide insights into the evolution of complex life cycles in the animal kingdom.

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