Cited by 316Genetic and phenotypic traits in livestockGenetic Associations and EpidemiologyGenetic Mapping and Diversity in Plants and Animals

Relatedness in the post-genomic era: is it still useful?

Speed, Doug, Balding, David J.·2015·Nature Reviews Genetics

Abstract

Relatedness is a fundamental concept in genetics but is surprisingly hard to define in a rigorous yet useful way. Traditional relatedness coefficients specify expected genome sharing between individuals in pedigrees, but actual genome sharing can differ considerably from these expected values, which in any case vary according to the pedigree that happens to be available. Nowadays, we can measure genome sharing directly from genome-wide single-nucleotide polymorphism (SNP) data; however, there are many such measures in current use, and we lack good criteria for choosing among them. Here, we review SNP-based measures of relatedness and criteria for comparing them. We discuss how useful pedigree-based concepts remain today and highlight opportunities for further advances in quantitative genetics, with a focus on heritability estimation and phenotype prediction.

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Crossref · 10.1038/nrg3821

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  • The correlation of normalized and centered genotype counts is well suited as a measure of genetic relatedness when considering differences across genetically diverse populations.

    “This relatedness measure is widely used to control for population structure in cohorts drawn from multiple mating populations (e.g., genetic principal components analysis or as the covariance structure of random effects in linear-mixed models of genetic association tests) and, thus, is well suited as a measure of genetic relatedness when considering differences across genetically diverse”

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Authors
Speed, D., & Balding, D. J.
Affiliations
  • University College London (GB)
  • The University of Melbourne (AU)
Corresponding author
Balding, David J.
Venue
Nature Reviews Genetics
Published
2014-11-18
Volume
16
Issue
1
Pages
33-44
ISSN
  • 1471-0056 (ISSN-L)
  • 1471-0064
OpenAlex
W2031781568
Cited by
316
References
98
Citations by year
2026: 21 · 2025: 32 · 2024: 38 · 2023: 30 · 2022: 32 · 2021: 15 · 2020: 20 · 2019: 32 · 2018: 26 · 2017: 28 · 2016: 23 · 2015: 19
FWCI
3.09
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Reviews Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Wellcome Trust
  • Medical Research Council (MR/L012561/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
Keywords
relatedness, genome similarity, single nucleotide polymorphisms, heritability estimation, phenotype prediction, quantitative genetics, post-genomic era
MeSH terms
Computer Simulation, Genetics, Population, Humans, Models, Genetic, Pedigree, Phenotype, Genetic Variation, Polymorphism, Single Nucleotide

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