Evidence map›Paper›PMID 20546624›Full record

ArticleGenetics, selection, evolution : GSE2010

Using the realized relationship matrix to disentangle confounding factors for the estimation of genetic variance components of complex traits.

Sang Hong Lee, Michael E Goddard, Peter M Visscher, Julius Hj van der Werf

Abstract read
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Article in Genetics, selection, evolution : GSE, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
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1 · What the graph read from it

What it found

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2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  11. Examining adaptive evolution of immune activity: opportunities provided by gastropods in the age of 'omics'.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Sang Hong LeeQueensland Statistical Genetics, Queensland Institute of Medical Research, Brisbane, Australia. hong.lee@qimr.edu.au
Michael E Goddard
Peter M Visscher
Julius Hj van der Werf

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundIn the analysis of complex traits, genetic effects can be confounded with non-genetic effects, especially when using full-sib families. Dominance and epistatic effects are typically confounded with additive genetic and non-genetic effects. This confounding may cause the estimated genetic variance components to be inaccurate and biased.

methodsIn this study, we constructed genetic covariance structures from whole-genome marker data, and thus used realized relationship matrices to estimate variance components in a heterogenous population of approximately 2200 mice for which four complex traits were investigated. These mice were genotyped for more than 10,000 single nucleotide polymorphisms (SNP) and the variances due to family, cage and genetic effects were estimated by models based on pedigree information only, aggregate SNP information, and model selection for specific SNP effects. RESULTS AND

conclusionsWe show that the use of genome-wide SNP information can disentangle confounding factors to estimate genetic variances by separating genetic and non-genetic effects. The estimated variance components using realized relationship were more accurate and less biased, compared to those based on pedigree information only. Models that allow the selection of individual SNP in addition to fitting a relationship matrix are more efficient for traits with a significant dominance variance.

Indexed as

AnimalsBiasGenetic VariationGenomeGenotypeMiceModels, BiologicalPedigreePolymorphism, Single NucleotideRegression AnalysisSiblings

Identifiers

PMID20546624
PMCPMC2903499

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.