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Chicken embryo as a model in epigenetic research.
Marek Bednarczyk1, Aleksandra Dunislawska1, Katarzyna Stadnicka1
1Department of Animal Biotechnology and Genetics, UTP University of Science and Technology, 85-084 Bydgoszcz, Poland.
Poultry Science
|May 31, 2021
Summary
Epigenetic modifications influence gene function without altering DNA sequence, impacting embryonic development. Chicken embryos offer a model to study how environmental factors like temperature affect these epigenetic changes and their long-term effects.
Area of Science:
- Developmental Biology
- Epigenetics
- Genetics
Background:
- Epigenetics involves heritable changes in gene function without DNA sequence alteration.
- Epigenetic modifications regulate gene expression in response to environmental stimuli.
- Key epigenetic reprogramming occurs during vertebrate embryogenesis and germ cell development.
Purpose of the Study:
- To review epigenetic changes during chicken embryonic development.
- To explore the impact of environmental factors on embryonic epigenetic modifications.
- To discuss the intergenerational and transgenerational inheritance of these epigenetic effects.
Main Methods:
- Utilizing the chicken embryo as a model for in vivo and in vitro epigenetic studies.
- Analyzing the molecular basis of epigenetic modifications.
- Investigating the influence of environmental factors, such as temperature, on development.
Main Results:
- Chicken embryos are suitable models for studying epigenetic modifications.
- Environmental factors can influence embryonic development through epigenetic mechanisms.
- Epigenetic changes can have long-term effects on postembryonic development.
Conclusions:
- Chicken embryos provide a valuable model for understanding epigenetic regulation in development.
- Environmental factors play a significant role in shaping epigenetic landscapes during embryogenesis.
- Further research into epigenetic inheritance is crucial for understanding long-term developmental outcomes.

