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Cited by 398

The DOI matches its Crossref record; 56 of the 56 references it cites were found in a registry or an index.

SNP ascertainment bias in population genetic analyses: Why it is important, and how to correct it

Open access
Lachance, Joseph, Tishkoff, Sarah A.·2013·BioEssays

Abstract

Whole genome sequencing and SNP genotyping arrays can paint strikingly different pictures of demographic history and natural selection. This is because genotyping arrays contain biased sets of pre‐ascertained SNPs. In this short review, we use comparisons between high‐coverage whole genome sequences of African hunter‐gatherers and data from genotyping arrays to highlight how SNP ascertainment bias distorts population genetic inferences. Sample sizes and the populations in which SNPs are discovered affect the characteristics of observed variants. We find that SNPs on genotyping arrays tend to be older and present in multiple populations. In addition, genotyping arrays cause allele frequency distributions to be shifted towards intermediate frequency alleles, and estimates of linkage disequilibrium are modified. Since population genetic analyses depend on allele frequencies, it is imperative that researchers are aware of the effects of SNP ascertainment bias. With this in mind, we describe multiple ways to correct for SNP ascertainment bias.

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Crossref · 10.1002/bies.201300014

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Metadata

Authors
Lachance, J., & Tishkoff, S. A.
Venue
BioEssays
Publisher
Wiley
Published
2013-07-09
Volume
35
Issue
9
Pages
780-786
ISSN
  • 0265-9247 (ISSN-L)
  • 1521-1878
OpenAlex
W1576934797
Cited by
398
References
56
FWCI
1.94
Type
journal article
Language
en
Open access
green

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