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The advantages and limitations of trait analysis with GWAS: a review

Open access
Korte, Arthur, Farlow, Ashley·2013·Plant Methods

Abstract

Over the last 10 years, high-density SNP arrays and DNA re-sequencing have illuminated the majority of the genotypic space for a number of organisms, including humans, maize, rice and Arabidopsis. For any researcher willing to define and score a phenotype across many individuals, Genome Wide Association Studies (GWAS) present a powerful tool to reconnect this trait back to its underlying genetics. In this review we discuss the biological and statistical considerations that underpin a successful analysis or otherwise. The relevance of biological factors including effect size, sample size, genetic heterogeneity, genomic confounding, linkage disequilibrium and spurious association, and statistical tools to account for these are presented. GWAS can offer a valuable first insight into trait architecture or candidate loci for subsequent validation.

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Metadata

Authors
Korte, A., & Farlow, A.
Venue
Plant Methods
Published
2013
Volume
9
Issue
1
Pages
29
ISSN
1746-4811 (ISSN-L)
OpenAlex
W2032457672
Cited by
1,670
References
12
FWCI
31.76
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: The advantages and limitations of trait analysis with GWAS: a review. https://app.cochat.ai/papers/10.1186/1746-4811-9-29
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Korte, A., & Farlow, A. (2013). The advantages and limitations of trait analysis with GWAS: a review. Plant Methods. https://doi.org/10.1186/1746-4811-9-29

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