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Sample GSM2130548 Query DataSets for GSM2130548
Status Public on Sep 01, 2016
Title p53_6_4 [X1 cells]
Sample type SRA
 
Source name X1 cells
Organism Schmidtea mediterranea
Characteristics RNAi: p53
time point (days): 6
replicate: 4
Treatment protocol Cloned gene vectors were transformed into bacterial strain HT115, induced to express dsRNA at O.D.= 0.8 with 1mM (final) IPTG, and incubated for 2 hours at 37 C with shaking. Bacterial pellets were rinsed once with Milli-Q water, and mixed with an equal weight of calf liver paste. dsRNA food was given to the animals every 3 days for three feedings.
Growth protocol The CIW4 clonal line of S. mediterranea was maintained at 20 C in 1X Montjuic salts (Cebrià and Newmark, 2005) supplemented with 50 ug/mL gentamicin sulfate, and fed homogenized calf liver paste once per week.
Extracted molecule polyA RNA
Extraction protocol To isolate stem cells, we used a well-established method to isolate planarian stem cells by Hoechst blue staining and flow cytometry. Sorted cells were homogenized in Trizol reagent and RNA was isolated per the manufacturer-supplied protocol. Isolated RNA from whole worm tissue was treated with RNase-free DNase on QIagen RNeasy columns and eluted in nuclease-free water.
500ng-1μg RNA per whole worm sample or 100ng of sorted cell RNA was used for generation of RNAseq libraries using the Illumina TruSeq kit.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 2500
 
Description p53_6_4
Data processing Base calls were performed using CASAVA-1.8.2
Prior to alignment, fastx_trimmer was used to retain only bases 11 to 80 of each read.
Reads were aligned using bowtie with the following parameters: --best --strata -v 2 -m 5 against transcriptome smed_20140614 defined in GEO submission: GSE72389
Read counts to genes were tallied from the SAM files with a custom script. RPKM values were generated using the rpkm function from the edgeR library from Bioconductor in R. One of the samples yielded very few reads and was discarded as an outlier (unc22 day 13 replicate2), thus 35 data sets remain.
Genome_build: Schmidtea_mediterranea_3.1
Supplementary_files_format_and_content: rpkm.txt contains tab-delimited RPKM vales for each sample.
 
Submission date Apr 21, 2016
Last update date May 15, 2019
Contact name Chris W Seidel
E-mail(s) seidel@phageT4.org
Phone 816 926 9054
Organization name Stowers Institute
Department Genomics
Lab Seidel
Street address 1000 E 50th St
City Kansas City
State/province MO
ZIP/Postal code 64110
Country USA
 
Platform ID GPL20150
Series (2)
GSE80544 RNA Seq analysis of neoblasts from Schmidtea mediterranea treated with RNAi against zfp1, p53, or unc22 to identify factors involved in neoblast differentiation.
GSE80562 The cell type and dynamic complexity of the planarian epidermis is determined by both conserved and derived transcriptional regulators.
Relations
BioSample SAMN04883215
SRA SRX1717879

Supplementary data files not provided
SRA Run SelectorHelp
Processed data are available on Series record
Raw data are available in SRA

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