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Single-Cell RNA Sequencing of Mutant Whole Mouse Embryos: From the Epiblast to the End of Gastrulation
Published on: June 14, 2024
Genetic programs in human and mouse early embryos revealed by single-cell RNA sequencing
Zhigang Xue1, Kevin Huang, Chaochao Cai
1Translational Center for Stem Cell Research, Tongji Hospital, Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai 200065, China. xuezhigang75@gmail.com
Nature
|July 30, 2013
Summary
This study maps gene expression changes during early mammalian embryo development using single-cell RNA sequencing. It reveals stage-specific gene activity and conserved developmental pathways in humans and mice.
Area of Science:
- Developmental Biology
- Genomics
- Transcriptomics
Background:
- Mammalian pre-implantation development involves significant transcriptional shifts.
- Understanding these dynamics is crucial for early embryonic development.
Purpose of the Study:
- To comprehensively analyze transcriptome dynamics from oocyte to morula in human and mouse embryos.
- To identify stage-specific gene expression patterns and conserved regulatory networks.
Main Methods:
- Single-cell RNA sequencing of human and mouse embryos.
- Analysis of single-nucleotide variants and polymorphisms.
- Weighted gene co-expression network analysis.
Main Results:
- Identified novel stage-specific monoallelic expression patterns (25-53%) in human embryos.
- Delineated developmental stages by functional gene modules, revealing sequential transcriptional changes.
- Found conserved gene modules between human and mouse embryos, with differences in timing and specificity.
- Identified conserved hub genes critical for mammalian pre-implantation development.
Conclusions:
- Provides a detailed map of transcriptome dynamics during early mammalian development.
- Highlights conserved and divergent gene regulatory mechanisms between human and mouse embryos.
- Offers novel candidate genes essential for driving pre-implantation development.
