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Series GSE23974 Query DataSets for GSE23974
Status Public on Feb 21, 2011
Title Gene regulation by the Arabidopsis seed maturation master regulator FUS3
Organism Arabidopsis thaliana
Experiment type Expression profiling by array
Summary The FUSCA3 (FUS3) transcription factor is considered to be a master regulator of seed maturation because a wide range of seed maturation events are impaired in its defective mutant. To comprehensively identify genes under the control of FUS3, two types of microarray experiments were performed. First, transgenic plants in which FUS3 expression could be induced by the application of estrogen (ESTR) were used to identify the genes up-regulated in young seedlings of Arabidopsis in response to ectopic expression of FUS3. Second, transcriptomes were compared between fus3 mutant and wild type developing seeds. Combining the results of these experiments identified genes under relatively immediate and robust control of FUS3 during seed development. The analyses expanded the range of types of genes under the control of FUS3. The genes positively controlled by FUS3 are not confined to previously known seed maturation-related genes and include those for production of secondary metabolites such as glucosinolates, phenylpropanoids and falvonoids, and primary metabolism such as photosynthesis and fatty acid biosynthesis. Furthermore, several different patterns were identified in the manner of ectopic activation by FUS3 including the kinetics and abscisic acid (ABA) requirement of downstream genes depending on their natures of developmental regulation, suggesting mechanistic diversity of gene regulation by FUS3.
 
Overall design This Series contains two different types of microarray experiments.
First, seven-day-old seedlings of the ESTR-inducible FUS3 transgenic plants (ER-FUS3) were cultured for 3, 6, 12, 24, 36 or 48 h in a standard liquid medium or in that containing ESTR, ABA or both. RNA was prepared from each time point sample of each treatment and used to prepare Cy5-labeled cRNA, which was subsequently probed by DNA array with the reference Cy3-labeled cRNA prepared from the time zero untreated seedlings. Two biological replicates per treatment.
Second, transcriptomes were compared between developing seeds of the wild-type (Col-0) and the fus3-3 mutant. This experiment contains two seed developmental stages, 8 days after flowering (DAF; bent cotyledon stage) and at 12 DAF (green cotyledon stage). Sample pairs in three biological replicates were analyzed by the two-color method. Dye-swapped hybridizations were performed in every replicate.
 
Contributor(s) Yamamoto A, Kagaya Y, Usui H, Takeda S, Hattori T
Citation(s) 21045071
Submission date Sep 03, 2010
Last update date Dec 06, 2012
Contact name Akiko Yamamoto
E-mail(s) yamamoto@agr.nagoya-u.ac.jp
Organization name Nagoya University
Department Bioscience and Biotechnology Center
Lab Laboratory of Plant Cell Function
Street address Furo-cho
City Nagoya
ZIP/Postal code 464-8601
Country Japan
 
Platforms (1)
GPL888 Agilent-011839 Arabidopsis 2 Oligo Microarray G4136A (Feature Number version)
Samples (62)
GSM590430 Transgenic ER-FUS3, 0h, No treatment, 1
GSM590431 Transgenic ER-FUS3, 3h, No treatment, 1
GSM590432 Transgenic ER-FUS3, 6h, No treatment, 1
Relations
BioProject PRJNA130459

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE23974_RAW.tar 278.0 Mb (http)(custom) TAR (of TXT)
Processed data included within Sample table

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