Bulk and single-cell RNA-seq of mouse blastocyst, blastoid Trophoblast stem cells and Embryonic stem cells

We did bulk and single cell RNA sequencing of blastocysts, blastoids, trophoblast stem cells (TSC) and embryonic stem cells (ESC). The goal of these experiment is to describe the transformations of the transcriptome occurring within cells (TSC, ESC) upon formation of a blastoid. E3.25 and E3.5 blastocysts are used as controls. To this end, we first did RNA sequencing of intact structures (E3.25 and E3.5 blastocysts, blastoids, and parental cell lines). In a different series of experiments, we micro-dissected blastocyst, blastoid or trophosphere structures into single cells, and sequenced their mRNAs, to infer cell identity and transcriptome variations. After dissociation of the structures, we harvested single cells, created libraries using the CELSeq protocol, and sequenced their mRNAs.