Related Experiment Video
Updated: Feb 6, 2026

10:17
An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
Published on: November 3, 2010
23.4K
Epigenetic and Cellular Diversity in the Brain through Allele-Specific Effects
Wei-Chao Huang1, Kathleen Bennett2, Christopher Gregg3
1Departments of Neurobiology & Anatomy, University of Utah School of Medicine, Salt Lake City, Utah, USA.
Trends in Neurosciences
|August 13, 2018
Summary
Diploidy offers benefits by masking harmful mutations and boosting genetic diversity. New research reveals complex gene expression in brain cells, expanding our understanding of diploidy
Area of Science:
- Genetics
- Neuroscience
- Epigenetics
Background:
- Diploidy's benefits include masking recessive mutations and increasing genetic diversity.
- Previous understanding suggested limited allele-specific expression in mammals.
Purpose of the Study:
- To review recent findings on allele-specific expression and epigenetic states in mammalian brain cells.
- To explore how diploidy influences gene regulation and expression programs.
Main Methods:
- Review of current scientific literature and studies.
- Analysis of data on allele-specific expression and epigenetic states.
Main Results:
- Evidence suggests diverse allele-specific expression and epigenetic states in mammalian brain cells.
- Novel genomic imprinting and random monoallelic expression patterns identified.
- These patterns are dependent on brain region, cell type, and age.
Conclusions:
- Diploidy expands the scope of gene regulatory and expression programs in cells.
- Findings offer new insights into brain development, function, and disease mechanisms.
- Re-evaluation of diploidy's benefits in light of novel expression patterns.
Related Concept Videos
Epigenetic Regulation
33.8K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
33.8K
Epigenetic Regulation
3.9K
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...
3.9K
Multiple Allele Traits
38.2K
The Concept of Multiple Allelism
38.2K
Lethal Alleles
18.1K
Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
18.1K
Diversity of Archaea I
663
Archaea, a domain of single-celled microorganisms, are classified into five major phyla based on genetic and biochemical characteristics: Euryarchaeota, Crenarchaeota, Thaumarchaeota, Korarchaeota, and Nanoarchaeota. Among these, the phylum Euryarchaeota is notable for its remarkable diversity in morphology, metabolism, and ecological adaptations.Morphological and Metabolic DiversityMembers of Euryarchaeota exhibit a variety of cellular shapes, including rods and cocci. Their metabolic pathways...
663
Cell Diversity
5.1K
The concept of a cell started with microscopic observations of dead cork tissue by Robert Hooke in 1665. Hooke coined the term "cell" based on the resemblance of the small subdivisions in the cork to the rooms that monks inhabited, called cells. About ten years later, Antonie van Leeuwenhoek became the first person to observe the living and moving cells under a microscope. In the century that followed, the theory that cells represented the basic unit of life developed.
Multicellular...
Multicellular...
5.1K

