Related Experiment Video
Updated: Feb 25, 2026
10:08
Determining the Role of Maternally-Expressed Genes in Early Development with Maternal Crispants
Published on: December 21, 2021
2.6K
The Origin and Evolution of Maternal Genes.
1School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, CO4 3SQ, UK. amarco.bio@gmail.com.
Results and Problems in Cell Differentiation
|August 6, 2017
Summary
Maternal genes, crucial for early development, are often younger and may evolve faster than other genes. Further research combining genomics and evolutionary theory is needed to fully understand their evolutionary dynamics.
Area of Science:
- Developmental Biology
- Evolutionary Genetics
Background:
- Maternal genes provide essential proteins and RNA for early embryonic development.
- The evolutionary dynamics of these crucial maternal genes remain largely unexplored.
Purpose of the Study:
- To review current knowledge on the evolution of maternal genes.
- To highlight the need for further research into their evolutionary origins and rates.
Main Methods:
- Literature review of existing studies on maternal gene evolution.
- Discussion of theoretical predictions and empirical evidence.
- Proposal for integrating high-throughput genomics with theoretical evolutionary approaches.
Main Results:
- Maternal genes often have more recent evolutionary origins compared to zygotic genes.
- Evidence suggests maternal genes may evolve at a faster rate than zygotic genes, though more data is needed.
- Current research is limited by the scope of species and genes studied.
Conclusions:
- Understanding maternal gene evolution requires broader species and gene sampling.
- Combining advanced genomic techniques with evolutionary modeling is key to future discoveries in maternal gene evolution.
Related Concept Videos
02:59Animal Mitochondrial Genetics
9.6K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.6K
02:30Genomic Imprinting and Inheritance
37.6K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
37.6K
01:29Non-nuclear Inheritance
23.4K
Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm—such as chloroplasts and mitochondria—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
23.4K
01:25Genetic Variation
1.5K
Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles,...
Genes exist in different versions called alleles,...
1.5K
03:17Inheritance of Chromatin Structures
7.7K
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...
7.7K
02:19Export of Mitochondrial and Chloroplast Genes
4.3K
A eukaryotic cell can have up to three different types of genetic systems: nuclear, mitochondrial, and chloroplast. During evolution, organelles have exported many genes to the nucleus; this transfer is still ongoing in some plant species. Approximately 18% of the Arabidopsis thaliana nuclear genome is thought to be derived from the chloroplast’s cyanobacterial ancestor, and around 75% of the yeast genome derived from the mitochondria’s bacterial ancestor. This export has occurred...
4.3K