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    Light-responsive cryptochromes from a simple multicellular animal, the coral Acropora millepora (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-10-20
    Description: Hundreds of species of reef-building corals spawn synchronously over a few nights each year, and moonlight regulates this spawning event. However, the molecular elements underpinning the detection of moonlight remain unknown. Here we report the presence of an ancient family of blue-light-sensing photoreceptors, cryptochromes, in the reef-building coral Acropora millepora. In addition to being cryptochrome genes from one of the earliest-diverging eumetazoan phyla, cry1 and cry2 were expressed preferentially in light. Consistent with potential roles in the synchronization of fundamentally important behaviors such as mass spawning, cry2 expression increased on full moon nights versus new moon nights. Our results demonstrate phylogenetically broad roles of these ancient circadian clock-related molecules in the animal kingdom.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy, O -- Appelbaum, L -- Leggat, W -- Gothlif, Y -- Hayward, D C -- Miller, D J -- Hoegh-Guldberg, O -- New York, N.Y. -- Science. 2007 Oct 19;318(5849):467-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Marine Studies, University of Queensland, St. Lucia 4072 QLD, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17947585" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/*genetics/*metabolism ; Base Sequence ; Circadian Rhythm ; Cryptochromes ; Flavoproteins/analysis/*genetics/*metabolism ; Gene Expression Regulation ; *Light ; Molecular Sequence Data ; Moon
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Complex diel cycles of gene expression in coral-algal symbiosis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: Circadian regulation of plant-animal endosymbioses is complicated by a diversity of internal and external cues. Here, we show that stress-related genes in corals are coupled to the circadian clock, anticipating major changes in the intracellular milieu. In this regard, numerous chaperones are "hard-wired" to the clock, effectively preparing the coral for the consequences of oxidative protein damage imposed by symbiont photosynthesis (when O(2) 〉 250% saturation), including synexpression of antioxidant genes being light-gated. Conversely, central metabolism appears to be regulated by the hypoxia-inducible factor system in coral. These results reveal the complexity of endosymbiosis as well as the plasticity regulation downstream of the circadian clock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy, O -- Kaniewska, P -- Alon, S -- Eisenberg, E -- Karako-Lampert, S -- Bay, L K -- Reef, R -- Rodriguez-Lanetty, M -- Miller, D J -- Hoegh-Guldberg, O -- New York, N.Y. -- Science. 2011 Jan 14;331(6014):175. doi: 10.1126/science.1196419.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233378" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/*genetics/physiology ; Biosynthetic Pathways/genetics ; *Circadian Clocks ; Circadian Rhythm ; Dinoflagellida/*physiology ; *Gene Expression Regulation ; Glycolysis/genetics ; Hypoxia-Inducible Factor 1, alpha Subunit/genetics/metabolism ; Molecular Chaperones/genetics ; Oligonucleotide Array Sequence Analysis ; Oxidation-Reduction ; Stress, Physiological ; *Symbiosis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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    PAPER CURRENT
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