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Updated: Aug 7, 2026
09:45
Detection of Copy Number Alterations Using Single Cell Sequencing
Published on: February 17, 2017
Copy number variation: new insights in genome diversity
Jennifer L Freeman1, George H Perry, Lars Feuk
1Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.
Genome Research
|July 1, 2006
Summary
Copy number variants (CNVs) are a major source of genetic variation in mammals, particularly humans. These DNA alterations influence gene expression and may explain many normal phenotypic differences and common diseases.
Area of Science:
- Genomics
- Human Genetics
- Molecular Biology
Background:
- DNA copy number variation is linked to chromosomal abnormalities and genetic disorders.
- The widespread nature of copy number variants (CNVs) in mammalian genomes is a recent discovery.
- CNVs are increasingly recognized as a significant component of genetic diversity.
Purpose of the Study:
- To highlight the substantial role of CNVs in human genetic variation.
- To emphasize the connection between CNVs, gene expression, and phenotypic variation.
- To underscore the importance of cataloging and characterizing CNVs for future research.
Main Methods:
- This study is a review of current research on DNA copy number variation.
- It synthesizes findings on the prevalence and impact of CNVs.
- Focuses on the implications for understanding genetic diversity and disease.
Main Results:
- CNVs constitute a significant portion of genetic variation in humans.
- CNVs can alter gene expression levels, contributing to phenotypic differences.
- CNVs are implicated in both normal variation and common human diseases.
Conclusions:
- CNVs are a fundamental aspect of genomic diversity with broad biological implications.
- Further comprehensive cataloging of CNVs is essential for research into evolution and disease.
- Understanding CNVs is crucial for advancing human genetics and personalized medicine.
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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
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