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Genomic analysis of human parthenogenetic haploid ESCs (hPGES), normal human ESCs(H9) and human forskin fibroblast

ABSTRACT: Genomic analysis of human parthenogenetic haploid ESCs (hPGES), normal human ESCs(H9) and human forskin fibroblast

PROVIDER: PRJNA320304 | ENA |

REPOSITORIES: ENA

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mRNA expression data from human parthenogenetic haploid ESCs (hPGES), normal ESCs (H9) and human fibroblast

Project description:Here we report the derivation of human haploid ESCs from parthenogenetic haploid embryos. We used RNA-seq to compare the gene expression levels among human parthenogenetic haploid ESCs (hPGES), normal human ESCs (H9) and human forskin fibroblasts and identified that these cells express conventional ESCs pluripotent markers and most maternally imprinted genes were down-regulated.

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DNA methylation data from human parthenogenetic haploid ESCs (hPGES), normal human ESCs(H9) and human forskin fibroblast

Project description:Here we report the derivation of human parthenogenetic haploid ESCs which contain only one set of chromosome. These two cell lines, which we designated hPGES1 and hPGES2, show conventional ESCs and parthenogenetic-derived DNA methylation state.

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Project description:The genomic DNA sample of hPGES were compared to UCSC Human genome19 by CNV data. The data confirmed that the human parthenogenetic haploid ESCs sustained normal genome integrity

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Project description:Genomic imprinting is a important biological process, which leads to parental specific gene expressions. Improper gene imprinting results in several developmental abnormalities, cancer and other diseases. Studies in mice indicated genomic imprinting establishment relied on parental allele-specific DNA methylation during gametogenesis. Despite the fact that genomic imprinting is highly conserved in mammalian, the species specific pattern exists. Until now, except that of in mouse, informations about imprinting patterns is little, especially in primates. Through generation genome-wide 5mC and 5hmC profiles for two types of haploid genomes from rhesus monkeys, including parthenogenetic haploid ESCs ( PG ha ESCs) (derived from rhesus monkey parthenogenetic embryos) and sperms. We clearly characterized and distinguished methylome (5mC) from hydroxymethylome (5hmC)(which can not discriminate from methylome in traditional bisulfite (BS) sequencing) in haploid genomes. Based on these information, we determined distribution patterns of 5mC and 5hmC in ha ESCs and sperms. Interestingly, both 5hmC levels and distribution patterns were similar in ha ESCs and sperms, and 5hmC which is enriched in the regions with low 5mC frequency. Meanwhile through comparing DNA methylation and hydroxymethylation status between sperms and ha ESCs, we first provided a fundamental information of monkey imprinted differentially methylated regions (DMRs) distribution in monkey chromosomes. Second, we observed that DMRs did not overlap with hydroxymethylated regions (DMR or DhMR), suggesting that establishment of imprinted regions was not interfered by 5hmC. Our results demonstrate DNA methylation profiling of PG ha ESCs and sperms can be uesed as a powerful and effective method to map and characterize imprinted regions in non-human primates genome.

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