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Series GSE13371 Query DataSets for GSE13371
Status Public on Oct 27, 2009
Title Transcriptome analysis of the zebrafish pineal gland
Organism Danio rerio
Experiment type Expression profiling by array
Summary The zebrafish pineal gland (epiphysis) is an autonomous clock organ. In addition to being a site of melatonin production, it contains photoreceptor cells and functions as a circadian clock pace maker, making zebrafish a useful model system to study the developmental control of expression of genes associated with melatonin synthesis and photodetection, and the circadian clock. Here we have used DNA microarray technology to study the zebrafish pineal transcriptome. Analysis of gene expression at five different developmental stages (three embryonic and two adult) has revealed a highly dynamic transcriptional profile, revealing many genes that are highly expressed in the pineal gland. Statistical analysis of the data based on Gene Ontology (GO) annotation indicates that many transcription factors and cell cycle genes are highly expressed during embryonic stages, whereas genes dedicated to visual system signal transduction are preferentially expressed in the adult. Furthermore, several genes were identified that exhibit day/night differences in expression. Our data provide a rich source of candidate genes for distinct functions at different stages of pineal gland development.

Keywords: time course
 
Overall design Adults and embryos were kept under a 14-hr-light/10-hr-dark cycle. Pineal glands were isolated manually, guided by GFP fluorescence, from embryonic (3d, 5d, and 10d) and adult (3 month and 1-2 yr) transgenic zebrafish in which expression of the GFP gene is driven by the pineal-specific aanat2 promoter. For comparison, brain tissue from which the pineal gland and eyes had been removed was also collected (referred to as “brain”). Altogether, we collected 20 types of samples: five time points (3d, 5d, 10d, 3 mo, and 1-2 yr), two organs (pineal gland and brain), and two sampling times (day and night). For each type of sample, tissue was obtained and processed three to five times. Total RNA was prepared from each sample using the RNeasy Lipid Tissue Mini Kit (Qiagen) and biotin-labeled cDNA was generated using the Ovation Biotin system kit (NeuGen). The Affymetrix GeneChip® Zebrafish Genome Array was hybridized and processed using the standard Affymetrix protocol.
 
Contributor(s) Toyama R, Dawid IB
Citation(s) 19504458
Submission date Oct 27, 2008
Last update date Jan 25, 2018
Contact name Reiko Toyama
E-mail(s) toyamar@mail.nih.gov
Phone 301-496-9689
Fax 301-496-0243
Organization name NIH
Department NICHD
Lab Lab. of Molecular Genetics
Street address Bldg.6B, Room 420, 9000 Rockville Pike
City Bethesda
State/province MD
ZIP/Postal code 20892
Country USA
 
Platforms (1)
GPL1319 [Zebrafish] Affymetrix Zebrafish Genome Array
Samples (69)
GSM337572 3d, pineal, day, rep1
GSM337573 3d, pineal, day, rep2
GSM337574 3d, pineal, day, rep3
Relations
BioProject PRJNA109795

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Supplementary file Size Download File type/resource
GSE13371_RAW.tar 125.2 Mb (http)(custom) TAR (of CEL)
Raw data provided as supplementary file
Processed data included within Sample table

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