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Sample GSM6935502 Query DataSets for GSM6935502
Status Public on Aug 01, 2023
Title WGBS monkey_oocyte_GV_rep2
Sample type SRA
Source name oocytes
Organism Macaca fascicularis
Characteristics tissue: oocytes
cell line: pre-implantation
cell type: oocytes
genotype: wild type
treatment: oocytes
Growth protocol placenta, STB cells, single oocyte
Extracted molecule genomic DNA
Extraction protocol For the placenta tissues, their whole genome was extracted with the TIANamp Genomic DNA Kit (DP304-03) under the manufactures construction. For the STBThe oocytes were lysed in the lysis buffer and then whole genome were
For the WGBS of placenta, 1 µg genomic DNA was fragmented to 200-300bp and purified using MiniElute PCR Purification Kit (QIAGEN). The resulted DNA was incubated at 20 ℃ with End Repair Mix and then purified. After end repair, the library was combined with A-Tailing Mix and incubated at 37 ℃ and then purified. Next, methylated adaptors were ligated to the Adenylate 3’Ends DNA and purified again. The above library was then undergoing bisulfite treatment and purified with Methylation-Gold kit (ZYMO). After that, fragments ranging from 320 to 420 bp were purified using agarose gel electrophoresis. The library was then amplified using PCR. Finally, the purified DNA products was qualified using the Agilent Technologies 2100 bioanalyzer and ABI StepOnePlus Real-Time PCR system. The library was sequenced in pair-end on the DNBseq platform. STB cells were seeded into lysis buffer by mouth pipette and subjected to bisulfite conversion using the EZ DNA Methylation Direct Kit (Zymo Research, D5020). A small amount of unmethylated Lambda DNA (Promega, D152A) was added to each sample before bisulfite conversion to serve as spike-in controls for evaluating bisulfite conversion efficiency. After column-based purification, DNA was complemented with the random primer Preamp and Klenow polymerase (Enzymatics, P7010-HC-L). This random priming was repeated five times in total. Second strands were synthesized using another random primer, Adapter 2. Final libraries were generated after PCR amplification with the Illumina universal PCR primer and Illumina indexed primer, and were then purified using SPRI beads. Final libraries were subjected to paired-end 150 bp sequencing on a NovaSeq 6000 sequencer (Illumina) with PhiX spike-in control. For the WGBS library construction of oocyte, a single oocyte was collected for each replication. A total of 2 GV oocytes and 3 MII oocytes were collected in this research. After cells were lysed using cell lysis buffer, bisulfite treatment was performed and the resultant DNA was purified using PureLink PCR Micro Kit (InvitrogenTM, K310050). The purified DNA was added with oligo1, followed by PCR. Then, the single strand DNA template was digested using polymerase, and the PCR products was purified using DynabeadsM-280 Streptavidin. The beads were resuspended in reaction mix with oligo2, the products were then purified again using Agencourt RNAClean XP beads. The purified DNA products were amplified using primers containing illumina specific primer and index. Finally, the amplified PCR products were further purified and eluted in elution buffer. The library was qualified using Agilent 2100 Bioanalyzer and ABI StepOnePlus Real-Time PCR System (TaqMan Prob). The qualified DNA library sequenced using DNBseq platform.
Library strategy Bisulfite-Seq
Library source genomic
Library selection RANDOM
Instrument model DNBSEQ-G400
Description monkey_oocyte_GV_rep2
Data processing The raw sequencing reads were trimmed by fastp (version 0.23.2) with default parameters to remove low-quality bases and adapters in paired-end reads.
The remaining reads of oocytes and STB cells were aligned to the Macaca fascicularis genome (macFas5) using Bismark (version 0.23.1) with parameters “--non_directional”.
The WGBS datasets of placenta were aligned to macFas5 using Bismark with default parameters.
The methylation level and coverage depth of each cytosine were extracted from the aligned reads with bismark_methylation_extractor.
The bedGraph files resulted from bismark_methylation_extractor was converted to BW files using bedGraphToBigWig software.
Assembly: macFas5
Supplementary files format and content: The bw files containing the DNA methylation peaks of the corresponding samples.
Supplementary files format and content: The tab-delimited txt files containing the DNA methylation peaks of CpGs of the corresponding samples.
Submission date Jan 15, 2023
Last update date Aug 01, 2023
Contact name Liao Zhaodi
Phone 17521632708
Organization name Chinese Academy of Sciences
Department Institute of Neuroscience
Street address 500, Qiangye Road
City Shanghai
ZIP/Postal code 2016000
Country China
Platform ID GPL32974
Series (2)
GSE222930 A somatic cell cloned rhesus monkey obtained by trophoblast replacement [WGBS I]
GSE239746 A somatic cell cloned rhesus monkey obtained by trophoblast replacement
BioSample SAMN32744913
SRA SRX19038229

Supplementary file Size Download File type/resource 37.5 Mb (ftp)(http) BW
GSM6935502_GV6.sort.CpG_report.txt.gz 211.3 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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