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High temporal resolution transcriptomic profiling from fertilization through ZGA

ABSTRACT: High temporal resolution transcriptomic profiling from fertilization through ZGA

PROVIDER: PRJNA737394 | ENA |

REPOSITORIES: ENA

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High temporal resolution transcriptomic profiling from fertilization through ZGA

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Project description:Zygotic genome activation (ZGA) is a complex process which denotes the initiation of gene expression after fertilization. Deciphering the proper timing and genes involved in ZGA program is still a fundamental challenge in early embryo development. Here, we present a new ZGA gene identification framework, named ZGA-Timer, based on the timecourse pattern from RNA-seq data. By performing ZGA-Timer and siRNA technology, we confirmed Uqcc3 as a novel ZGA gene in mice. As a unique feature of ZGA-Timer, time-series RNA-seq data are modeled by a pattern recognition method and the onset of ZGA can be estimated in multiple species. ZGA-Timer outperforms current foldchange-based approaches. Furthermore, we investigate the epigenetic modifications and find that accessible chromatin predominately contributes to the regulation of ZGA genes. Moreover, ZGA genes show significant enrichment in housekeeping genes and cancer driver genes. Together, our ZGA-Timer framework provides a new approach to further understand the ZGA process.

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High-resolution analysis of gene activity during the Xenopus mid-blastula transition

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