Lists and Descriptions of columns in *.xls files 1. ID, maize array ID 2. Name, Accession (GenBank, TC, AZM) 3. Tigr_ID, TIGR oligo ID 4. Putative_Annotation 5. gene #, 6. Estimate, The Estimate results are based on the normalized (including natural log transformation) expression signal intensities. Estimate represents the estimate of the mean difference of normalized expression signal intensities between Base and Tip, or Base and Middle, or Middle and Tip parts of the ear. For example: for gene # 12276, the least square estimate of normalized mean expression intensity for Middle is -2.0383 (negative value due to normalization), while the least square estimate of normalized mean expression intensity for Tip is 0.1546. Therefore, the estimate of mean difference of expression intensity of Middle vs Tip is -2.0383 - 0.1546 = -2.1929. 7. foldchange, Expression foldchange between either parts of the ear (for example: foldchange (M/T) means expression foldchange between Middle and Tip parts of the ear) for gene #12276, the foldchange (M/T) is exp (Estimate) = exp(-2.1929) = 0.11, foldchange (T/M) is 1/exp(Estimate) = 1/exp(-2.1929) = 8.96 8. StdErr, Standard error of the Estimate 9. tValue, T-test statistic 10. pvalue, Under H0 (The gene is not differentially expressed between either parts of the ear (B, M; B, T; or M,T), the probability of get the result as extreme or greater than the tValue. 11.q.value, False discovery rate