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Maternal Smchd1 regulates Hox gene expression and patterning in the mouse embryo

ABSTRACT: Maternal Smchd1 regulates Hox gene expression and patterning in the mouse embryo

PROVIDER: PRJNA761782 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15826205_1.fastq.gz	Fastqsanger.gz
	SRR15826205_2.fastq.gz	Fastqsanger.gz
	SRR15826206_1.fastq.gz	Fastqsanger.gz
	SRR15826206_2.fastq.gz	Fastqsanger.gz
	SRR15826207_1.fastq.gz	Fastqsanger.gz

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Maternal Smchd1 regulates Hox gene expression and patterning in the mouse embryo [ESC RRBS]

Project description:Parents transmit genetic and epigenetic information to their offspring. Maternal effect genes regulate the offspring epigenome to ensure normal development. Here we report that the epigenetic regulator SMCHD1 has a maternal effect on Hox gene expression and skeletal patterning. Maternal SMCHD1, present in the oocyte and preimplantation embryo, prevents precocious activation of Hox genes post-implantation. Without maternal SMCHD1, highly penetrant posterior homeotic transformations occur in the embryo. Hox genes are decorated with Polycomb marks H2AK119ub and H3K27me3 from the oocyte throughout early embryonic development; however, loss of maternal SMCHD1 does not deplete these marks. Therefore, we propose maternal SMCHD1 acts downstream of Polycomb marks to establish a chromatin state necessary for persistent epigenetic silencing and appropriate Hox gene expression later in the developing embryo. This is a striking role for maternal SMCHD1 in long-lived epigenetic effects impacting offspring phenotype.

2022-06-27 | GSE203617 | GEO