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Sample GSM3318679 Query DataSets for GSM3318679
Status Public on Dec 04, 2018
Title Group L, Cow 2, post
Sample type SRA
 
Source name Group L_post_venous blood PBMC
Organism Bos taurus
Characteristics breed: dairy cows
sample group: Group L
age: Adult
lactation stage: 7 days postpartum
cell type: Peripheral blood mononuclear cells (PBMC)
Treatment protocol NA
Growth protocol standard dairy cow housing
Extracted molecule total RNA
Extraction protocol Peripheral blood mononuclear cells (PBMC) were separated from veinous blood by Ficoll density gradient. Total RNA was isolated with Trizol, with an extra chloroform extraction to remove residual phenol and addition of glyco-blue as a carrier to promote RNA precipitation.
Diretional RNA-seq libraries were prepared from 500ng total RNA using the NEBNext Directional Ultra II RNA Library Prep Kit for Illumina (New England Biolabs), with initial polyA+ isolation.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NextSeq 500
 
Description L2post
processed data file:
PreVPost_gene_exp.diff: p7_4
4groups_gene_exp.diff: Lp7_1
genes.read_group_tracking: Lp7_1
Data processing Illumina pipeline software v1.8 was used for base calling.
cutadapt v1.8 (-m 50 -q 20 -a AGATCGGAAGAGCACACGTCTGAACTCCAGTC --match-read-wildcards) was used to trim and filter reads.
tophat v2.1.1 (--no-novel-juncs --library-type fr-firststrand) was used to map reads to the Bos taurus UMD3.1 reference genome+transcriptome (Ensembl).
cuffquant (--library-type fr-firststrand) was used to quantify transcripts based on the Bos taurus UMD3.1 reference genome+transcriptome (Ensembl).
cuffdiff v2.2.1 was used to call differentially expressed genes based on the Bos taurus UMD3.1 reference genome+transcriptome (Ensembl).
Genome_build: Bos taurus UMD3.1 (Ensembl)
Supplementary_files_format_and_content: Tab delimited text files are standard cuffdiff2 output files for gene-level analysis, including counts, FPKM values, and q-values for differential expression testing (corrected for multiple hypothesis testing). The '*gene_exp.diff' files contain average FPKM values for each set of replicates as well as results for statistical testing for differential expression (PreVPost = all prepartum vs all postpartum samples; 4groups = H1-3pre vs H1-3post vs L1-3pre vs L1-3post). The 'genes.read_group_tracking' file contains raw mapped read counts and FPKM values for individual samples.
 
Submission date Aug 03, 2018
Last update date Dec 04, 2018
Contact name Jennifer K Grenier
Organization name Cornell University
Department Biomedical Sciences
Lab Biotechnology Building rm 333
Street address 526 Campus Rd
City Ithaca
State/province NY
ZIP/Postal code 14853
Country USA
 
Platform ID GPL23055
Series (1)
GSE118108 Gene expression profiling of PBMCs in dairy cows pre- and post-partum
Relations
BioSample SAMN09764768
SRA SRX4506615

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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