Project description:Parthenogenetic embryos derive their genomes entirely from maternal genome, and lack paternal imprint patterns. Many achievements have been made in the study of genomic imprinting using parthenogenetic embryonic stem cells (hPES cells). However, due to the developmental defects and ethical limits, the comprehensive understanding of parthenogenetic embryo development is still lacking. Here, we induced naive hPES cells into parthenogenic blastoids using a published two-step 3D induction protocol. Morphological and molecular analysis showed that parthenogenetic blastoids contain crucial cell lineages similar to natural human blastocysts.
Project description:ChIP-seq experiment of 14 human lymphoblastoid cell line samples from the 1000 Genomes sample set (http://www.1000genomes.org/). Dataset includes two parent-daughter trios (CEU and YRI populations) and additional eight unrelated individuals (CEU population). This accession contains raw and mapped ChIP-seq read data, other assays in this study are available under accession E-MTAB-1883 (RNA-seq, https://www.ebi.ac.uk/arrayexpress/experiments/E-MTAB-1883) and E-MTAB-1885 (GRO-seq, https://www.ebi.ac.uk/arrayexpress/experiments/E-MTAB-1885/).
Project description:It is becoming clear that copy number polymorphism in the human genome is a significant form of genetic variation. We have developed a new method that uses SNP genotype data from parent-offspring trios and applied it to HapMap to conduct high-resolution detection of deletion polymorphism. Of the delections uncovered, approximately 100 have been experimentally validated using comparative genome hybridization on these tiling-resolution oligonucleotide microarrays. We identified a total of 586 distinct regions that harbor deletion polymorphisms in one or more of the parent-offspring trios. This new method will permit future identification of deletion polymorphisms from high density SNP data derived from parent-offspring trios or other family relationships. Keywords: comparative genomic hybridisation
