Characterization of large structural genetic mosaicism in human autosomes
- PMID: 25748358
- PMCID: PMC4375431
- DOI: 10.1016/j.ajhg.2015.01.011
Characterization of large structural genetic mosaicism in human autosomes
Abstract
Analyses of genome-wide association study (GWAS) data have revealed that detectable genetic mosaicism involving large (>2 Mb) structural autosomal alterations occurs in a fraction of individuals. We present results for a set of 24,849 genotyped individuals (total GWAS set II [TGSII]) in whom 341 large autosomal abnormalities were observed in 168 (0.68%) individuals. Merging data from the new TGSII set with data from two prior reports (the Gene-Environment Association Studies and the total GWAS set I) generated a large dataset of 127,179 individuals; we then conducted a meta-analysis to investigate the patterns of detectable autosomal mosaicism (n = 1,315 events in 925 [0.73%] individuals). Restricting to events >2 Mb in size, we observed an increase in event frequency as event size decreased. The combined results underscore that the rate of detectable mosaicism increases with age (p value = 5.5 × 10(-31)) and is higher in men (p value = 0.002) but lower in participants of African ancestry (p value = 0.003). In a subset of 47 individuals from whom serial samples were collected up to 6 years apart, complex changes were noted over time and showed an overall increase in the proportion of mosaic cells as age increased. Our large combined sample allowed for a unique ability to characterize detectable genetic mosaicism involving large structural events and strengthens the emerging evidence of non-random erosion of the genome in the aging population.
Copyright © 2015 The American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.
Figures







Similar articles
-
Detectable clonal mosaicism and its relationship to aging and cancer.Nat Genet. 2012 May 6;44(6):651-8. doi: 10.1038/ng.2270. Nat Genet. 2012. PMID: 22561519 Free PMC article.
-
Detectable clonal mosaicism in the human genome.Semin Hematol. 2013 Oct;50(4):348-59. doi: 10.1053/j.seminhematol.2013.09.001. Semin Hematol. 2013. PMID: 24246702 Free PMC article. Review.
-
Mosaic uniparental disomies and aneuploidies as large structural variants of the human genome.Am J Hum Genet. 2010 Jul 9;87(1):129-38. doi: 10.1016/j.ajhg.2010.06.002. Am J Hum Genet. 2010. PMID: 20598279 Free PMC article.
-
Female chromosome X mosaicism is age-related and preferentially affects the inactivated X chromosome.Nat Commun. 2016 Jun 13;7:11843. doi: 10.1038/ncomms11843. Nat Commun. 2016. PMID: 27291797 Free PMC article.
-
The ageing genome, clonal mosaicism and chronic disease.Curr Opin Genet Dev. 2017 Feb;42:8-13. doi: 10.1016/j.gde.2016.12.002. Epub 2017 Jan 6. Curr Opin Genet Dev. 2017. PMID: 28068559 Free PMC article. Review.
Cited by
-
Molecular and clinical aspects relevant for counseling individuals with clonal hematopoiesis of indeterminate potential.Front Oncol. 2023 Dec 15;13:1303785. doi: 10.3389/fonc.2023.1303785. eCollection 2023. Front Oncol. 2023. PMID: 38162500 Free PMC article. Review.
-
GWAS Explorer: an open-source tool to explore, visualize, and access GWAS summary statistics in the PLCO Atlas.Sci Data. 2023 Jan 12;10(1):25. doi: 10.1038/s41597-022-01921-2. Sci Data. 2023. PMID: 36635305 Free PMC article.
-
Chromosomal alterations among age-related haematopoietic clones in Japan.Nature. 2020 Aug;584(7819):130-135. doi: 10.1038/s41586-020-2426-2. Epub 2020 Jun 24. Nature. 2020. PMID: 32581364 Free PMC article.
-
Quantitative analysis of somatically acquired and constitutive uniparental disomy in gastrointestinal cancers.Int J Cancer. 2019 Feb 1;144(3):513-524. doi: 10.1002/ijc.31936. Epub 2018 Dec 3. Int J Cancer. 2019. PMID: 30350313 Free PMC article.
-
Detectable clonal mosaicism in blood as a biomarker of cancer risk in Fanconi anemia.Blood Adv. 2017 Jan 23;1(5):319-329. doi: 10.1182/bloodadvances.2016000943. eCollection 2017 Jan 24. Blood Adv. 2017. PMID: 29296947 Free PMC article.
References
-
- Strachan T., Read A. Wiley-Liss; New York: 1999. Human Molecular Genetics.
-
- Youssoufian H., Pyeritz R.E. Mechanisms and consequences of somatic mosaicism in humans. Nat. Rev. Genet. 2002;3:748–758. - PubMed
-
- Biesecker L.G., Spinner N.B. A genomic view of mosaicism and human disease. Nat. Rev. Genet. 2013;14:307–320. - PubMed
Publication types
MeSH terms
Grants and funding
- P01 CA087969/CA/NCI NIH HHS/United States
- K05 CA154337/CA/NCI NIH HHS/United States
- R01 CA092447/CA/NCI NIH HHS/United States
- R01 HL039693/HL/NHLBI NIH HHS/United States
- P30 CA008748/CA/NCI NIH HHS/United States
- R01 DE016148/DE/NIDCR NIH HHS/United States
- P50 CA102701/CA/NCI NIH HHS/United States
- G0401527/MRC_/Medical Research Council/United Kingdom
- R01 EY022305/EY/NEI NIH HHS/United States
- R01 EY015473/EY/NEI NIH HHS/United States
- P30 EY014104/EY/NEI NIH HHS/United States
- UM1 CA182910/CA/NCI NIH HHS/United States
- 001/WHO_/World Health Organization/International
- R01 HL112642/HL/NHLBI NIH HHS/United States
- R01 DE014899/DE/NIDCR NIH HHS/United States
- UM1 CA182934/CA/NCI NIH HHS/United States
- G1000143/MRC_/Medical Research Council/United Kingdom
- K07 CA172294/CA/NCI NIH HHS/United States
- P30 CA023108/CA/NCI NIH HHS/United States
- R25 CA174664/CA/NCI NIH HHS/United States
- R01 CA124908/CA/NCI NIH HHS/United States
LinkOut - more resources
Full Text Sources
Other Literature Sources
Molecular Biology Databases
Miscellaneous