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Sample GSM1888392 Query DataSets for GSM1888392
Status Public on Sep 17, 2016
Title LT2, Tomato Shoot rep1
Sample type SRA
 
Source name Bacterial cells grown on Tomato shoot
Organism Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Characteristics strain: LT2
growth media: tomato shoot
Growth protocol Salmonella cells were grown on either shoots or roots of tomato plants for 3 days until the cells were retrieved from the plants for mRNA isolation.
Extracted molecule total RNA
Extraction protocol Tomato plants maintaining Salmonella cells were submerged in Qiagen RNAprotect solution to stabilize bacterial RNA. Total RNA was isolated from the bacterial cells dislodged from the plants using Qiagen RNeasy mini kit. The total RNA was depleted of prokaryotic ribosomal RNA using Epicentre Ribo-Zero rRNA removal kit.
RNA libraries were prepared for sequencing using standard Illumina protocols.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 1000
 
Data processing Illumina Casava v1.8.2 was used for basecalling.
Sequenced reads were trimmed of adaptor and barcode sequences using Trimmomatic (Bolger et al., 2014) with parameters ILLUMINACLIP:<adaptor.fasta>:2:30:10 HEADCROP:10 SLIDINGWINDOW:4:20 MINLEN:70, then mapped to S. Typhimurium LT2 whole genome (NC_003197 and NC_003277) using bowtie v2.1.0 and tophat v2.0.9 with tophat parameters --library-type=fr-firststrand.
Fragments Per Kilobase of transcript per Million mapped reads (FPKM) were calculated using a protocol from Trapnell et al., Nature Protocols, 2012. In short, the reads and the merged assembly were fed to Cuffdiff which normalizes read counts into FPKM (fragments per kilobase of transcript per million mapped fragments), calculates expression levels, and tests the statistical significance of observed changes in expression levels.
Genome_build: NC_003197 and NC_003277
Supplementary_files_format_and_content: Tab-delimited files including averaged FPKM values for each condition.
 
Submission date Sep 18, 2015
Last update date May 15, 2019
Contact name Sanghyun Han
E-mail(s) h.sanghyun@gmail.com
Organization name RDA-NAAS
Street address 166 Nong-Saeng-Myung-Ro
City Wan-Ju-Goon
ZIP/Postal code 55365
Country South Korea
 
Platform ID GPL20934
Series (1)
GSE73192 Genome-Wide Transcriptional Profiling of Salmonella Typhimurium Epiphytically Colonizing Tomato Points to Anaerobic Respiration, and Nitrosative and Oxidative Stress Responses
Relations
BioSample SAMN04096035
SRA SRX1258662

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

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