arab: Genomic Response to Brassinosteroid in Arabidopsis


These data are from Affy ATH1 array experiments of genomic response to brassinosteroid in Arabidopsis conducted by two laoratories. The data set contains 500 random selected genes and 10 samples, 6 from lab 1 and 4 from lab 2. Data were pre-processed by RMA





matrix of gene expression levels of 500 genes from 10 samples, rows correspond to genes and columns to mRNA samples.

numeric vector encoding the treatment classes, 5 brassinosteroid-treated cases (code 1) and 5 control cases (code 0)


character vector containing the AffyID of the 500 genes for the expression matrix arab


numeric vector encoding the origin of the samples, 6 samples from lab 1 (code 1) and 4 samples from lab 2 (code 2)


Nemhauser JL, Mockler TC, Chory J. Interdependency of brassinosteroid and auxin signaling in Arabidopsis. PLoS Biol. 2004 21460.
Microarray data from AtGenExpress (

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