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Sample GSM172926 Query DataSets for GSM172926
Status Public on Jul 31, 2007
Title Rice panicle WT vs. dsRNAiOsMADS2 Sample A
Sample type RNA
 
Channel 1
Source name WT rice TP309 panicles
Organism Oryza sativa
Characteristics Rice TP309; wild type panicles undergoing floral organ specification and differentiation
Extracted molecule total RNA
Extraction protocol Total RNA was isolated from WT rice panicles using Tri Reagent (Sigma) and purified by RNeasy cleanup kit (Qiagen). RNA profile and integrity of RNA was checked by Agilent’s Bioanalyzer.
Label Cy3
Label protocol cDNA was synthesized from tortal RNA by RT-PCR and was used as templete for Cy3 lebeled cRNA synthesis using T7 dependent in vitro transcription system.
 
Channel 2
Source name Transgenic rice panicles knock down for OsMADS2
Organism Oryza sativa
Characteristics Transgenic rice panicles of similar developmental stage to WT where a transcription regulator, OsMADS2 has been knocked down by double stranded RNA interference
Extracted molecule total RNA
Extraction protocol Total RNA was isolated from OsMADS2 knock down rice panicles using Tri Reagent (Sigma) and purified by RNeasy cleanup kit (Qiagen). RNA profile and integrity of RNA was checked by Agilent’s Bioanalyzer.
Label Cy5
Label protocol cDNA was synthesized from tortal RNA by RT-PCR and was used as templete for Cy5 lebeled cRNA synthesis using T7 dependent in vitro transcription system.
 
 
Hybridization protocol Probe fragmentation: Fragmentation reaction was as-
cRNA Cy3 750 ng,cRNA Cy5 750 ng,Blocking agent 50 ul,Water variable, 25 X fragmentation buffer,10 ul to 250 ul total volume.
Incubate at 60C for 30 mins. Add 250 ul of 2X hybridization buffer.
Use 490 ul for each slide and hybridize at 65C for 17 hrs at 5 rpm speed.
Scan protocol Washing was done according to Agilent’s instructions using wash buffer 1 followed by wash buffer 2. Slides were scanned using Agilent DNA Microarray Scanner (G2565BA).
Description Image quality was checked with the help of-
1. Four green spots and each corner of the image
2. SpikeIn A and B control spots across the image
3. Evenness of the background in log-scale mode
Data processing The TIFF image was used to extract raw and processed data using Agilent’s Feature Extraction software (FE v8.1). The normalization was done using GeneSpring GX version 7.2 using the recommended Per Spot and Per Chip: Intensity dependent (Lowess) normalization. Number of non-control spots with ratio 0.25 and below were considered as down regulated spots.
 
Submission date Mar 05, 2007
Last update date Mar 09, 2007
Contact name Shri Ram Yadav
E-mail(s) sryiisc@gmail.com
Phone +91-80-22932681
Fax +91-80-23600168
URL http://mcbl.iisc.ernet.in
Organization name Indian Institute of Science
Department Department of Microbiology and Cell Biology
Lab Prof. Usha Vijayraghavan's lab
Street address C. V. Raman Avenue
City Bangalore
State/province Karnataka
ZIP/Postal code 560012
Country India
 
Platform ID GPL892
Series (1)
GSE7192 Identification of downstream genes regulated by OsMADS2

Data table header descriptions
ID
VALUE
CH1
CH2

Data table
ID VALUE CH1 CH2
5746 0.3553706 3726 1324
14335 0.2874404 162.2 46.63
8978 1.0020632 688.2 689.6
3791 1.0442001 10 10.44
8297
6628 0.75693107 5202 3938
20101 1.8584765 864.9 1607
4736 0.20142166 1819 366.3
4901 0.421888 25.42 10.72
2142 0.4160768 1722 716.6
5362 15.758799 10 157.6
7045
9810 1.7361456 243.6 422.9
3042 2.0002425 213 426.1
10540 0.7301814 1684 1229
6521 0.8786177 20.37 17.9
7699 12.025677 18.1 217.7
5604 0.56282926 307.8 173.3
15176 2.3216515 570.6 1325
19462 1.0784419 37.75 40.71

Total number of rows: 21495

Table truncated, full table size 528 Kbytes.




Supplementary file Size Download File type/resource
GSM172926.xls.gz 1.4 Mb (ftp)(http) XLS

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