Cited by 352Genomic variations and chromosomal abnormalitiesGenome Rearrangement AlgorithmsChromosomal and Genetic Variations

Gene Copy-Number Alterations: A Cost-Benefit Analysis

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Tang, Yun-Chi, Amon, Angelika·2013·Cell

Abstract

Changes in DNA copy number, whether confined to specific genes or affecting whole chromosomes, have been identified as causes of diseases and developmental abnormalities and as sources of adaptive potential. Here, we discuss the costs and benefits of DNA copy-number alterations. Changes in DNA copy number are largely detrimental. Amplifications or deletions of specific genes can elicit discrete defects. Large-scale changes in DNA copy number can also cause detrimental phenotypes that are due to the cumulative effects of copy-number alterations of many genes simultaneously. On the other hand, studies in microorganisms show that DNA copy-number alterations can be beneficial, increasing survival under selective pressure. As DNA copy-number alterations underlie many human diseases, we will end with a discussion of gene copy-number changes as therapeutic targets.

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  • The toolbox model suggests that prokaryotic metabolic pathways emerge through horizontal gene transfer and are rapidly acquired and lost based on nutrient availability.

    “This so-called toolbox model suggests that prokaryotic metabolic pathways emerge through horizontal gene transfer (HGT) and are rapidly acquired and lost based on nutrient availability [132].”

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Authors
Tang, Y.-C., & Amon, A.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Amon, Angelika
Venue
Cell
Publisher
Elsevier BV
Published
2013-01
Volume
152
Issue
3
Pages
394-405
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2011172223
Cited by
348
References
119
Citations by year
2026: 14 · 2025: 15 · 2024: 22 · 2023: 36 · 2022: 17 · 2021: 27 · 2020: 34 · 2019: 25 · 2018: 35 · 2017: 25 · 2016: 24 · 2015: 33 · 2014: 25 · 2013: 15
FWCI
3.97
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-nd)
  • PMC
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health
  • National Institute of General Medical Sciences (R01GM056800, GM 56800, R29GM056800)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
copy number alterations, gene amplification, gene deletion, chromosomal instability, adaptive evolution, microorganisms, developmental abnormalities, therapeutic target
MeSH terms
Aneuploidy, Animals, Humans, Neoplasms, Plants, Polyploidy, Yeasts, Gene Expression, Gene Dosage, Genetic Fitness, DNA Copy Number Variations

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