Expression of Cry2 in the chicken pineal gland: Effects of changes in light-dark conditions

Andras D. Nagy, Karishma Seomangal, Siri Kommedal, Valer J. Csernus

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Pineal expression of Cry2 mRNA has been examined in chickens under normal (LD) and reversed (DL) light-dark conditions. In vivo the peak of Cry2 mRNA content at late subjective day under LD diminished after switching to a DL schedule. In vitro, Cry2 mRNA levels showed a steady decrease during light exposure at subjective night. Our data show that light-sensitive clock components in the pinealocytes may be involved in the repression of Cry2 transcription at night, which may contribute to resetting the phase of the clock within 24 h.

Original languageEnglish
Title of host publicationTrends in Comparative Endocrinology and Neurobiology
PublisherBlackwell Publishing Inc.
Pages488-490
Number of pages3
ISBN (Print)9781573316712
DOIs
Publication statusPublished - Apr 2009

Publication series

NameAnnals of the New York Academy of Sciences
Volume1163
ISSN (Print)0077-8923
ISSN (Electronic)1749-6632

Keywords

  • Chicken
  • Circadian rhythms
  • Cry2
  • Light
  • Pineal gland

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science

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  • Cite this

    Nagy, A. D., Seomangal, K., Kommedal, S., & Csernus, V. J. (2009). Expression of Cry2 in the chicken pineal gland: Effects of changes in light-dark conditions. In Trends in Comparative Endocrinology and Neurobiology (pp. 488-490). (Annals of the New York Academy of Sciences; Vol. 1163). Blackwell Publishing Inc.. https://doi.org/10.1111/j.1749-6632.2008.03640.x