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Sample GSM238991 Query DataSets for GSM238991
Status Public on Apr 09, 2008
Title kernel_development_35DAP_to_25DAP_rep2_A
Sample type RNA
 
Channel 1
Source name 35DAP
Organism Zea mays
Characteristics Zea mays, Kernel, Development
Growth protocol Natural conditions, growing season begins from May to September, on the China Agricultural University research farm in Beijing, China.
Extracted molecule total RNA
Extraction protocol Total RNA was extracted using a modified hot phenol method.
Label Cy5
Label protocol Cy5-cDNA were prepared according to the recommendations of the Maize Oligo Array Project (http://www.maizearray.org/).
 
Channel 2
Source name 25DAP
Organism Zea mays
Characteristics Zea mays, Kernel, Development
Growth protocol Natural conditions, growing season begins from May to September, on the China Agricultural University research farm in Beijing, China.
Extracted molecule total RNA
Extraction protocol Total RNA was extracted using a modified hot phenol method.
Label Cy3
Label protocol Cy3-cDNA were prepared according to the recommendations of the Maize Oligo Array Project (http://www.maizearray.org/).
 
 
Hybridization protocol Hybridization and post hybridization wash were performed according to the protocal of the Maize Oligo Array Project (http://www.maizearray.org/).
Scan protocol Hybridized slides were scanned by a Genepix 4000B (Axon, USA).
Description Gene expression data from maize kernel
Data processing Raw data from microarray hybridization, exported from GenePix suites 6.0 (Axon, USA), was imported into LIMMA with annotation and spot types. Spots with a negative flag value were assigned a weight of 0.1 in the subsequent analysis. Background-subtracted signal intensities were normalized using a two-step normalization: print-tip group loss (within-array normalization) and then between-array scale normalization.
 
Submission date Oct 19, 2007
Last update date Apr 09, 2008
Contact name Guoying Wang
E-mail(s) [email protected]
Phone 86-10-62162927
Organization name Chinese Academy of Agricultural Sciences
Department Institute of Crop Sciences
Lab Maize Molecular Biology
Street address Zhongguancun Nandajie 12
City Beijing
ZIP/Postal code 100081
Country China
 
Platform ID GPL5439
Series (1)
GSE9386 Genome-wide analysis of gene expression profiles during the kernel development of maize (Zea mays L.)

Data table header descriptions
ID_REF
VALUE same as UNF_VALUE but with flagged values removed
CH_R_SIG CH_R (Cy5) Raw intensity (F635 Mean)
CH_R_BKD CH_R (Cy5) Background median intensity (B635 Median)
CH_G_SIG CH_G (Cy3) Raw intensity (F532 Mean)
CH_G_BKD CH_G (Cy3) Background median intensity (B532 Median)
FLAG 1: good spot; 0.1: undetectable spot or bad spot or saturated spot
UNF_VALUE Normalized log2 ratio (Cy5/Cy3)

Data table
ID_REF VALUE CH_R_SIG CH_R_BKD CH_G_SIG CH_G_BKD FLAG UNF_VALUE
422946 -0.197092335 2506 247 2444 179 1 -0.197092335
422947 -0.624231639 486 245 513 175 1 -0.624231639
422948 0.160494054 2481 243 2009 168 1 0.160494054
422949 -0.678441047 539 247 571 168 1 -0.678441047
422950 0.132520036 2339 255 1906 170 1 0.132520036
422951 2.355180783 46689 256 12066 171 1 2.355180783
422952 335 250 258 173 0.1 0.651414158
422953 -0.017198114 1044 249 889 169 1 -0.017198114
422954 335 243 256 164 0.1 0.592550861
422955 364 248 282 170 0.1 0.549143474
422956 -1.093814777 617 245 787 173 1 -1.093814777
422957 -0.22796088 2422 245 2391 175 1 -0.22796088
422958 320 250 297 175 0.1 -0.4406848
422959 265 250 214 172 0.1 -0.409485353
422960 -0.506972184 1141 248 1213 169 1 -0.506972184
422961 -0.164151754 31649 248 31475 172 1 -0.164151754
422962 -0.166996165 648 248 581 174 1 -0.166996165
422963 -1.096101455 341 252 376 175 1 -1.096101455
422964 0.338683803 591 256 452 177 1 0.338683803
422965 264 246 231 175 0.1 -0.74876682

Total number of rows: 32448

Table truncated, full table size 1423 Kbytes.




Supplementary data files not provided
Processed data included within Sample table

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