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Sample GSM238992 Query DataSets for GSM238992
Status Public on Apr 09, 2008
Title kernel_development_1DAP_to_35DAP_rep1_A
Sample type RNA
 
Channel 1
Source name 1DAP
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 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 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) 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 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 308 305 661 434 0.1 -3.882540453
422947 582 302 515 439 0.1 1.409794739
422948 495 307 613 425 0.1 0.100987341
422949 338 306 497 432 0.1 -0.488100423
422950 0.205528194 949 308 943 423 1 0.205528194
422951 -2.044194809 1440 312 9968 412 1 -2.044194809
422952 277 312 443 419 0.1 null
422953 0.991424244 1688 322 970 424 1 0.991424244
422954 329 323 424 418 0.1 0.337977793
422955 334 307 417 412 0.1 1.832212321
422956 403 310 616 412 0.1 -0.57289308
422957 407 306 637 417 0.1 -0.568191407
422958 322 309 425 403 0.1 -0.287519533
422959 255 293 371 418 0.1 null
422960 346 295 564 405 0.1 -1.035560128
422961 0.175498738 1468 297 1503 405 1 0.175498738
422962 446 311 510 410 0.1 0.404997168
422963 380 322 432 410 0.1 1.149004701
422964 519 314 548 412 0.1 0.529911845
422965 297 314 388 409 0.1 null

Total number of rows: 32448

Table truncated, full table size 1300 Kbytes.




Supplementary data files not provided
Processed data included within Sample table

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