GEO Accession viewer

NCBI > GEO > Accession Display

Not logged in | Login

GEO help: Mouse over screen elements for information.

Sample GSM4575532

Query DataSets for GSM4575532

Status

Public on May 28, 2023

Title

CB_bk1

Sample type

SRA

Source name

brain

Organism

Cyprinus carpio

Characteristics

agent: none
tissue: brain

Extracted molecule

total RNA

Extraction protocol

Total RNA was extracted using Trizol reagent (Invitrogen, CA, USA) following the manufacturer's procedure. The total RNA quantity and purity were analysis of Bioanalyzer 2100 and RNA 6000 Nano LabChip Kit (Agilent, CA, USA) with RIN number >7.0. Approximately 10 ug of total RNA representing a specific adipose type was subjected to isolate Poly (A) mRNA with poly-T oligoattached magnetic beads (Invitrogen). Following purification, the poly(A)- or poly(A)+ RNA fractions is fragmented into small pieces using divalent cations under elevated temperature. Then the cleaved RNA fragments were reverse-transcribed to create the final cDNA library in accordance with the protocol for the mRNA-Seq sample preparation kit (Illumina, San Diego, USA), the average insert size for the paired-end libraries was 300 bp (±50 bp). And then we performed the paired-end sequencing on an Illumina Novaseq™ 6000 at the (lc-bio, China) following the vendor's recommended protocol.
RNA libraries were prepared for sequencing using standard Illumina protocols

Library strategy

RNA-Seq

Library source

transcriptomic

Library selection

cDNA

Instrument model

Illumina HiSeq 4000

Description

CB_bk1

Data processing

Illumina Casava1.7 software used for basecalling.
Sequenced reads were trimmed for adaptor sequence, and masked for low-complexity or low-quality sequence, then mapped to mm8 whole genome using bowtie v0.12.2 with parameters -q -p 4 -e 100 -y -a -m 10 --best --strata
Reads Per Kilobase of exon per Megabase of library size (FPKM) were calculated using a protocol from Chepelev et al., Nucleic Acids Research, 2009. In short, exons from all isoforms of a gene were merged to create one meta-transcript. The number of reads falling in the exons of this meta-transcript were counted and normalized by the size of the meta-transcript and by the size of the library.
Data filtering steps.Prior to assembly, the low quality reads(1,reads containing sequencing adaptors; 2,reads containing sequencing primer;3, nucleotide with q quality score lower than 20 )were removed .software CutAdapter,parameters -o 5 -p 100
Read alignment software,software HISAT ,version 2.0 ,parameters -l fr-firststrand -mi 20 -mx 500000 -p 2 -b dta -q phred33-quals -x 9
perform expression level for mRNAs by calculating FPKM.stimate the expression levels of all transcripts.software StringTie ,version 1.3.0,parameters -b dta -q phred33-quals.
Genome_build: Beta_vulgaris.GCF_000511025.2_RefBeet-1.2.2
Supplementary_files_format_and_content: tab-delimited text files include FPKM and count values for each Sample

Submission date

May 28, 2020

Last update date

May 28, 2023

Contact name

zhang yue

E-mail(s)

zhangy117700@sina.com

Organization name

Jilin Agricultural University

Street address

xincheng street num 2888