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Sample GSM238988 Query DataSets for GSM238988
Status Public on Apr 09, 2008
Title kernel_development_25DAP_to_15DAP_rep1_A
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 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 0.732416412 2580 344 1900 148 1 0.732416412
422947 -1.713997621 1003 344 1990 148 1 -1.713997621
422948 -0.447624567 1551 342 1919 150 1 -0.447624567
422949 0.047953337 644 345 490 146 1 0.047953337
422950 -0.680705277 987 356 1155 149 1 -0.680705277
422951 3.038527088 3396 351 865 147 1 3.038527088
422952 398 347 204 142 0.1 0.908899367
422953 -0.424494693 610 346 533 144 1 -0.424494693
422954 389 344 231 145 0.1 -0.048530619
422955 412 349 241 142 0.1 0.138299336
422956 -0.345799611 992 352 999 142 1 -0.345799611
422957 0.062649299 1040 350 887 140 1 0.062649299
422958 446 350 255 141 0.1 0.487576489
422959 345 349 169 139 0.1 null
422960 -0.632346968 747 346 777 140 1 -0.632346968
422961 -0.212004972 28127 354 33663 142 1 -0.212004972
422962 -0.89842263 495 352 423 138 1 -0.89842263
422963 -0.454044846 478 344 360 138 1 -0.454044846
422964 -0.121146497 512 346 362 139 1 -0.121146497
422965 356 355 184 140 0.1 -5.253792075

Total number of rows: 32448

Table truncated, full table size 1454 Kbytes.




Supplementary data files not provided
Processed data included within Sample table

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