PUBLICATION

Zygotic genome activation during the maternal-to-zygotic transition

Authors
Lee, M.T., Bonneau, A.R., Giraldez, A.J.
ID
ZDB-PUB-170214-299
Date
2014
Source
Annual Review of Cell and Developmental Biology   30: 581-613 (Review)
Registered Authors
Giraldez, Antonio, Lee, Miler
Keywords
cellular reprogramming, embryogenesis, maternal clearance, pioneer factors, pluripotency
MeSH Terms
  • Animals
  • Cell Cycle
  • Chromatin/genetics
  • Chromatin/ultrastructure
  • Drosophila Proteins/physiology
  • Egg Proteins/genetics
  • Embryo, Nonmammalian
  • Embryonic Development/genetics*
  • Female
  • Gene Expression Regulation, Developmental*/drug effects
  • High-Throughput Nucleotide Sequencing
  • Histones/physiology
  • Humans
  • Models, Genetic
  • Oocytes/metabolism
  • Pregnancy
  • RNA Stability
  • RNA, Messenger/biosynthesis
  • RNA, Messenger/genetics
  • RNA, Messenger, Stored/genetics*
  • Transcription Factors/genetics
  • Transcription, Genetic*/drug effects
  • Transcriptome
  • Xenopus Proteins/physiology
  • Zebrafish Proteins/physiology
  • Zygote/metabolism*
PubMed
25150012 Full text @ Annu. Rev. Cell Dev. Biol.
Abstract
Embryogenesis depends on a highly coordinated cascade of genetically encoded events. In animals, maternal factors contributed by the egg cytoplasm initially control development, whereas the zygotic nuclear genome is quiescent. Subsequently, the genome is activated, embryonic gene products are mobilized, and maternal factors are cleared. This transfer of developmental control is called the maternal-to-zygotic transition (MZT). In this review, we discuss recent advances toward understanding the scope, timing, and mechanisms that underlie zygotic genome activation at the MZT in animals. We describe high-throughput techniques to measure the embryonic transcriptome and explore how regulation of the cell cycle, chromatin, and transcription factors together elicits specific patterns of embryonic gene expression. Finally, we illustrate the interplay between zygotic transcription and maternal clearance and show how these two activities combine to reprogram two terminally differentiated gametes into a totipotent embryo.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping