NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM1897596 Query DataSets for GSM1897596
Status Public on Nov 17, 2019
Title ciona_oocyte
Sample type SRA
 
Source name Ciona oocyte
Organism Ciona savignyi
Characteristics cell type: oocyte
developmental stage: gamete
Extracted molecule genomic DNA
Extraction protocol The gametes and embryos were frozen at 70 below zero or subjected to immediate genomic extraction procedures. Genomic DNA was extracted by QIAamp DNA Mini Kit(QIAGEN) following the protocol of DNA Purification from Tissues with the cell lysis time adjusted depending on different samples.
Genomic DNA spiked with 0.5% unmethylated Lambda DNA (Promega) was sonicated into 100-500bp. Fragmented DNA was then subjected to end repair,dA tailing, ligation with the end repair enzyme mix (NEB), Klenow 3´-5´ exo- (NEB) and T4 DNA ligase (NEB), respectively. Adapter-ligated DNA was recovered by 2% agarose gel electrophoresis, and bisulfite conversion was performed using the EZ DNA methylation-Gold kit (Zymo Research) according to the instruction manual. Bisulfite-treated DNA was amplified with KAPA HiFi HotStart Uracil+ ReadyMix. Amplified DNA was recovered by 2% agarose gel electrophoresis.
 
Library strategy Bisulfite-Seq
Library source genomic
Library selection RANDOM
Instrument model Illumina HiSeq 2000
 
Description 3 replicates;replicate1[ciona_oocyte_rep1_*.fastq.gz];replicate2[ciona_oocyte_rep2_*.fastq.gz];replicate3[ciona_oocyte_rep3_*.fastq.gz]
Data processing Adapters and low-quality reads were trimed with Trimmomatic
Reads alignment were performed with Bismark with default settings
duplicates were removed by deduplicate_bismark function of Bismark, and overlapped part of paired-end reads were removed by clipOverlap of bamUtil_1.0.9
methylation level were extracted with mpileup function of Samtools (v0.1.19)
Genome_build: sea_anemone[ASM20922v1];honey_bee[GCA_000002195.1];sea_urchin[Spur_3.1];ciona[CSAV2.0]
Supplementary_files_format_and_content: Format: bed; content: Methylation level for each CpG site plus 2 columns representing the numbers of Cs and Ts
 
Submission date Sep 29, 2015
Last update date Nov 17, 2019
Contact name jiang liu
E-mail(s) liuj@big.ac.cn
Phone +8613621376393
Organization name Beijing Institute of Genomics, Chinese Academy of Sciences
Street address NO.1 Beichen West Road, Chaoyang District
City beijing
ZIP/Postal code 100101
Country China
 
Platform ID GPL20966
Series (1)
GSE73545 The evolution of DNA methylation inheritance and programming in animals
Relations
BioSample SAMN04122064
SRA SRX1294712

Supplementary file Size Download File type/resource
GSM1897596_ciona_oocyte.bed.gz 33.7 Mb (ftp)(http) BED
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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