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Sample GSM239001 Query DataSets for GSM239001
Status Public on Apr 09, 2008
Title kernel_development_25DAP_to_15DAP_rep2_B
Sample type RNA
 
Channel 1
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 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 15DAP
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 20, 2007
Last update date Apr 09, 2008
Contact name Guoying Wang
E-mail(s) gywang@caas.net.cn
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 GPL5440
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
455394 418 488 194 198 0.1 null
455395 1.898512048 834 498 308 198 1 1.898512048
455396 424 487 208 198 0.1 null
455397 423 484 186 200 0.1 null
455398 0.86879982 741 494 388 200 1 0.86879982
455399 436 496 232 199 0.1 null
455400 434 496 219 198 0.1 null
455401 548 496 284 197 0.1 -0.013085824
455402 452 497 246 200 0.1 null
455403 0.411698887 3696 509 3058 206 1 0.411698887
455404 702 518 377 210 0.1 0.638190121
455405 0.472764762 638 521 337 214 1 0.472764762
455406 394 517 205 220 0.1 null
455407 -0.197069436 9820 532 17515 223 1 -0.197069436
455408 772 535 373 222 0.1 1.075049046
455409 502 528 328 218 0.1 null
455410 413 519 211 218 0.1 null
455411 0.33734055 1103 537 780 225 1 0.33734055
455412 470 547 271 222 0.1 null
455413 3.353895312 1413 537 315 227 1 3.353895312

Total number of rows: 32448

Table truncated, full table size 1334 Kbytes.




Supplementary data files not provided
Processed data included within Sample table

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