Histone Modifications: Decoding the Epigenetic Basis of Economic Traits in Livestock and Poultry
Yixin Su1,2,3, Wenze Li1,2,3, Qi Lv1,2,3
1College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
Genes
|May 27, 2026
Summary
Histone modifications regulate economic traits in livestock by influencing gene expression. Integrating epigenomic data offers new breeding strategies for enhanced animal production.
Area of Science:
- Epigenetics and Animal Breeding
- Molecular Biology
- Quantitative Genetics
Background:
- Economic traits in livestock are influenced by genetics, environment, and epigenetics.
- Histone modifications (methylation, acetylation) are key epigenetic regulators of gene expression and chromatin structure.
- These modifications link DNA sequences to complex phenotypes, offering insights into trait development.
Purpose of the Study:
- To review the regulatory roles of histone modifications in livestock economic traits.
- To explore strategies for integrating histone modification data into animal breeding programs.
- To identify challenges and future directions in epigenomic selection for animal agriculture.
Main Methods:
- Literature review of studies on histone modifications and economic traits in livestock and poultry.
- Analysis of epigenetic regulation in skeletal muscle development, fat deposition, and reproduction.
- Examination of prospective breeding strategies using epigenomic data and nutritional interventions.
Main Results:
- Histone modifications dynamically regulate gene expression impacting key economic traits.
- Epigenomic maps can serve as biomarkers for precision livestock selection.
- Targeted nutrition can influence early phenotypic development through epigenetic programming.
Conclusions:
- Histone modifications are crucial for understanding and improving livestock economic traits.
- Integrating epigenomic data into breeding programs promises enhanced precision selection.
- Overcoming challenges like cost and tissue specificity is key for advancing epigenomic design in animal breeding.
Related Concept Videos
02:32Histone Modification
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
02:32Histone Modification
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
01:37Epigenetic Regulation
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
03:17Inheritance of Chromatin Structures
Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying DNA...