|
| Status |
Public on Sep 12, 2009 |
| Title |
WT_1wk_-P_rep1 |
| Sample type |
RNA |
| |
|
| Source name |
2-week old WT rosette grown for one additional week on -P medium
|
| Organism |
Arabidopsis thaliana |
| Characteristics |
tissue: seedlings without roots
age: 3 weeks
genotype: WT Col0
treatment: No phosphate medium
|
| Treatment protocol |
After two weeks, they were transferred to fresh +P or -P MS medium. For the -P medium, KH2PO4 was omitted but the potassium was compensated by K2SO4. Plantlets were rinsed with distilled water before transfer and then grown for 3h or one week.
|
| Growth protocol |
WT and pnp1-1 plants (Columbia -0) were germinated and grown for 2 weeks on a full nutrient MS medium (+P) containing 0.6% phytagar (w/v) and 0.5% (w/v) Suc at 22˚C in a growth chamber under a 16-h photoperiod (with a fluorescent light intensity of 200 μmol m-2 s-1
|
| Extracted molecule |
total RNA |
| Extraction protocol |
Total RNA was isolated from seedlings, from which roots had been removed, using the RNeasy Plant Minikit (Qiagen), including DNase treatment according to the manufacturer’s instructions.
|
| Label |
biotin
|
| Label protocol |
One microgram of each total RNA sample was labeled using MessageAmp™ II-Biotin /Enhanced/ Single Round aRNA Amplification Kit from Ambion (Austin, TX), according to manufacture provided protocol.
|
| |
|
| Hybridization protocol |
Labeled cRNA was hybridized on Affymetrix Arabidopsis ATH1 Genome arrays, stained and washed according to standard protocol by Affymetrix (Santa Clara, CA).
|
| Scan protocol |
GeneChips were scanned using the and scanned by GeneChip Scanner 3000.
|
| Description |
WT_1wk_-P_rep1
|
| Data processing |
Raw array data were normalized at the probe level using gcRMA (Wu et al., 2004). The detection calls (present, marginal, or absent) for each probe set were obtained using the mas5calls function in the Affy package (Gautier et al., 2004). Only genes with at least one present call across all of the compared samples were used to identify differentially expressed genes. Significance of gene expression was determined using the LIMMA test (Smyth, 2004), and raw P values of multiple tests were corrected using FDR (Benjamini and Hochberg, 1995). Genes with FDR , 0.05 and fold change $ 2 were identified as differentially expressed.
|
| |
|
| Submission date |
Sep 11, 2009 |
| Last update date |
Aug 28, 2018 |
| Contact name |
Chloe Marchive |
| E-mail(s) |
cm363@cornell.edu
|
| Phone |
1 607 254 1304
|
| Fax |
1 607 255 6695
|
| Organization name |
Boyce Thompson Institute
|
| Lab |
Stern Lab
|
| Street address |
Tower road
|
| City |
Ithaca |
| State/province |
NY |
| ZIP/Postal code |
14850 |
| Country |
USA |
| |
|
| Platform ID |
GPL198 |
| Series (1) |
| GSE18071 |
Chloroplast polynucleotide phosphorylase null mutant (pnp1-1) and phosphate starvation |
|
| Relations |
| Reanalyzed by |
GSE118579 |
| Reanalyzed by |
GSE119083 |
