Genes with monoallelic expression contribute disproportionately to genetic diversity in humans

Savova, Virginia; Chun, Sung; Sohail, Mashaal; McCole, Ruth B.; Witwicki, Robert; Gai, Lisa; Lenz, Tobias L.; Wu, C.-ting; Sunyaev, Shamil R.; Gimelbrant, Alexander A.

doi:10.1038/ng.3493

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Genes with monoallelic expression contribute disproportionately to genetic diversity in humans

3 2016
By Savova, Virginia ; Chun, Sung ; Sohail, Mashaal ; ...
http://dx.doi.org/10.1038/ng.3493
Source: Nat Genet. 48(3):231-237

[PDF-1.25 MB]

English

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Details:

Alternative Title:

Nat Genet
Personal Author:

Savova, Virginia ; Chun, Sung ; Sohail, Mashaal ; McCole, Ruth B. ; Witwicki, Robert ; ... More +

Savova, Virginia ; Chun, Sung ; Sohail, Mashaal ; McCole, Ruth B. ; Witwicki, Robert ; Gai, Lisa ; Lenz, Tobias L. ; Wu, C.-ting ; Sunyaev, Shamil R. ; Gimelbrant, Alexander A. Less -
Description:

An unexpectedly large number of human autosomal genes are subject to monoallelic expression (MAE). Our analysis of 4,227 such genes uncovers surprisingly high genetic variation across human populations. This increased diversity is unlikely to reflect relaxed purifying selection. Remarkably, MAE genes exhibit an elevated recombination rate and an increased density of hypermutable sequence contexts. However, these factors do not fully account for the increased diversity. We find that the elevated nucleotide diversity of MAE genes is also associated with greater allelic age: variants in these genes tend to be older and are enriched in polymorphisms shared by Neanderthals and chimpanzees. Both synonymous and nonsynonymous alleles of MAE genes have elevated average population frequencies. We also observed strong enrichment of the MAE signature among genes reported to evolve under balancing selection. We propose that an important biological function of widespread MAE might be the generation of cell-to-cell heterogeneity; the increased genetic variation contributes to this heterogeneity.
Keywords:

[+]

Alleles Animals Gene Expression Regulation Genetics, Population Genetic Variation Humans Neanderthals Pan Troglodytes
Source:

Nat Genet. 48(3):231-237
Pubmed ID:

26808112
Pubmed Central ID:

PMC4942303
Document Type:

Journal Article
Funding:

R01 GM078598/GM/NIGMS NIH HHSUnited States/ ; R01 GM061936/GM/NIGMS NIH HHSUnited States/ ; DP1 GM106412/GM/NIGMS NIH HHSUnited States/ ; R01 GM114864/GM/NIGMS NIH HHSUnited States/ ; GM105857/GM/NIGMS NIH HHSUnited States/ ; ... More +

R01 GM078598/GM/NIGMS NIH HHSUnited States/ ; R01 GM061936/GM/NIGMS NIH HHSUnited States/ ; DP1 GM106412/GM/NIGMS NIH HHSUnited States/ ; R01 GM114864/GM/NIGMS NIH HHSUnited States/ ; GM105857/GM/NIGMS NIH HHSUnited States/ ; U54 LM008748/LM/NLM NIH HHSUnited States/ ; R01 GM61936/GM/NIGMS NIH HHSUnited States/ ; 5DP1 GM106412/DP/NCCDPHP CDC HHSUnited States/ ; R01 GM105857/GM/NIGMS NIH HHSUnited States/ ; R01 MH101244/MH/NIMH NIH HHSUnited States/ ; MH101244/MH/NIMH NIH HHSUnited States/ Less -
Volume:

48
Issue:

3
Collection(s):

CDC Public Access
Main Document Checksum:

[+]

urn:sha256:4f5065cca606b3f6520b45a8441483d702d1c4da258513517aec55f50dd69627
Download URL:

https://stacks.cdc.gov/view/cdc/40346/cdc_40346_DS1.pdf
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