NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM1933323 Query DataSets for GSM1933323
Status Public on Apr 18, 2017
Title BufoBoreas-Skin_control_rep6
Sample type RNA
 
Source name Skin
Organism Anaxyrus boreas
Characteristics excluded from analyses based on qc: 1
tissue: Skin
genotype: Wild-type
phenotype: normal
subject id: Bb13
pathogen infection intensity (zoospore equivalents) for subject: 0
slide id: 540253
cy3 pmt: 8.3
excluded from analyses based on qc: 1
Growth protocol Prior to the experiment the frogs were housed communally, but for the experiement they were each kept in individual tanks. The frogs were kept in a room maintained at 18 degrees C with 12:12 light:dark photoperiod. The frogs were fed crickets twice per week ad libitum with a water change. For both species (Bufo marinus, Bufo boreas), ten out of twenty frogs were experimentally exposed to the chytrid pathogen Batrachochytrium dendrobatidis for 24 hours. The experiement ended 18 days after inoculation, when all frogs were sacrificed and tissues were collected and preserved in liquid nitrogen. Gene expression was analysed in sample size of 6 replicates per species and tissue type.
Extracted molecule total RNA
Extraction protocol Total RNA was extracted using a routine Trizol/Chloroform protocol. RNA quality and concentration was determined by analysis with an Agilent 2100 bioanalyzer (minimum RIN score = 8.0).
Label Cy3
Label protocol Cy3 labeling was performed by performed by University of Idaho Genomic Resources Core following the Nimblegen standard operating protocol.
 
Hybridization protocol Hybridization was performed by University of Idaho Genomic Resources Core following the Nimblegen standard operating protocol.
Scan protocol Scanning was performed by University of Idaho Genomic Resources Core following the Nimblegen standard operating protocol. The chips were scanned on an Axon GenePix 4000B Scanner (Molecular Devices, Sunnyvale, CA) using GenePix Pro v6.1 software (Molecular Devices, Sunnyvale, CA). For scanning, the PMT gain was adjusted for optimal saturation.
Description NA
Bb13A
Data processing Each tissue type (skin, liver, and spleen) was analyzed separately. Using the R package "oligo", each array was background corrected and normalized using the quantile normalization procedure. Each probeset was summarized using the median polish procedure as described with the robust multichip average (RMA) procedure (Irizarry et al. Biostatistics 4(2):249). The median polish procedure is a robust method for summarizing all probes contained within each probeset to a single expression value for each gene taking into account individual probe effects. Probesets with low levels of expression variation across all samples (IQR < 0.5) were removed from further analysis, reducing the overall number of statistical tests to be performed
 
Submission date Nov 08, 2015
Last update date Apr 18, 2017
Contact name Thomas Poorten
E-mail(s) tom.poorten@gmail.com
Organization name UC Berkeley
Department Environmental Science, Policy, and Management
Street address 54 Mulford Hall
City Berkeley
State/province CA
ZIP/Postal code 94720
Country USA
 
Platform ID GPL21108
Series (1)
GSE74788 Comparative study of host response to chytridiomycosis in susceptible and resistant toad species

Supplementary file Size Download File type/resource
GSM1933323_540253_No_ID_Slot_4_A08_2012-08-28_532.xys.gz 734.4 Kb (ftp)(http) XYS
Processed data not provided for this record

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap