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Status |
Public on Mar 05, 2013 |
Title |
Mock roots-0dpi-biological rep1 |
Sample type |
RNA |
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Source name |
Medicago truncatula roots were treated with sterile water and harvested from mock innoculated plants after 0 days.
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Organism |
Medicago truncatula |
Characteristics |
plant age: 5 days treatment: mock inoculated treatment-time: 0 days tissue: roots
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Extracted molecule |
total RNA |
Extraction protocol |
Trizol extraction of total RNA was performed according to the manufacturer's instructions.
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Label |
biotin
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Label protocol |
Biotinylated cRNA were prepared according to the standard Affymetrix protocol from 10 ug total RNA (Expression Analysis Technical Manual, 2001, Affymetrix).
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Hybridization protocol |
Following fragmentation, 10 ug of cRNA were hybridized for 16 hr at 45C on to the AtMtDEFL custom Array. GeneChips were washed and stained using the MAUI 12-bay hybridization system.
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Scan protocol |
GeneChips were scanned using the MAUI 12-bay hybridization system.
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Description |
Gene expression data from 0 dpi root segments excluding the root tip of plants mock innoculated with sterile water and used as control for Sinorhizobium meliloti Sm1021 innoculated roots.
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Data processing |
Microarray normalizations and initial analyses were performed in R using custom scripts that made use of Bioconductor routines. To implement the Stable-genes Based Quantile (SBQ) normalization (Sato et al., 2007), we first combined expression data from all 11 probes within a probe set into a single expression measure using the Bioconductor expression command, using RMA-style background correction and median polish probe summarization. These summarized values were output from R and used as input to the SBQ perl script (Sato et al., 2007).For statistical analysis, SBQ normalized signal intensity values were Log2 transformed and statistical analysis was based on a t-test or ANOVA (P<0.05) with Benjamini and Hochberg false discovery rate multiple testing correction (Benjamini and Hochberg, 1995), and the corrected p values were designated as q values.
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Submission date |
Jan 03, 2012 |
Last update date |
Mar 06, 2013 |
Contact name |
Kevin A Silverstein |
Organization name |
Universtiy of Minnesota
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Department |
Minnesota Supercomuting Institute
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Street address |
599 Walter Library, 117 Pleasant St SE
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City |
Minneapolis |
State/province |
MN |
ZIP/Postal code |
55455 |
Country |
USA |
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Platform ID |
GPL14988 |
Series (1) |
GSE34803 |
Expression data of Nodule Cysteine-Rich (NCR) Defensin-Like (DEFL) genes in different stages of nodule development in Medicago truncatula |
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