The myocardial wall arises from a single layer of cardiomyocytes, some delaminate to create trabeculae while others remain in the compact layer. However, the mechanisms governing cardiomyocyte fate decisions remain unclear. Using single-cell RNA sequencing, genetically encoded biosensors, and in toto live imaging, we observe intrinsic variations in expression and its association with trabecular fate.
View Article and Find Full Text PDFSubstantial epigenetic resetting during early embryo development from fertilization to blastocyst formation ensures zygotic genome activation and leads to progressive cellular heterogeneities. Mapping single-cell epigenomic profiles of core histone modifications that cover each individual cell is a fundamental goal in developmental biology. Here we develop target chromatin indexing and tagmentation (TACIT), a method that enabled genome-coverage single-cell profiling of seven histone modifications across mouse early embryos.
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