Table I.
Functional categorization of the 551 most significantly regulated transcripts in stamen AZs
Functional categories in which AZ transcript abundance exceeded that found in the ATH1 by at least 50% are represented. GO categorization data were determined on July 18, 2007. P-values were obtained using Fisher's exact test.
| GO Classification by Genes | Percent of Total Transcripts | AZ Overrepresentation | P-Value | |
|---|---|---|---|---|
| A. By cellular component | ATH1 | AZ551 | Fold Change | |
| Cell wall | 0.925 | 3.5 | 3.8 | 1.1 e-7 |
| Extracellular | 0.72 | 2.3 | 3.2 | 8.0 e-5 |
| Nucleus | 7.6 | 12.1 | 1.6 | 1.5 e-5 |
| Other membranes | 20.1 | 31.1 | 1.5 | 1.1 e-11 |
| B. By molecular function | ||||
| Transcription factor activity | 5.8 | 11.3 | 1.95 | 2.9 e-12 |
| C. By biological process | ||||
| Response to stress | 2.2 | 4.6 | 2.1 | 4.5 e-10 |
| Response to abiotic or biotic stimulus | 2.7 | 5.2 | 1.9 | 4.2 e-10 |
| Transcription | 3.7 | 5.4 | 1.5 | 2.2 e-6 |
| Signal transduction | 2.0 | 2.9 | 1.5 | 9.8 e-4 |