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A General Test of Association for Quantitative Traits in Nuclear Families
Open accessAbstract
High-resolution mapping is an important step in the identification of complex disease genes. In outbred populations, linkage disequilibrium is expected to operate over short distances and could provide a powerful fine-mapping tool. Here we build on recently developed methods for linkage-disequilibrium mapping of quantitative traits to construct a general approach that can accommodate nuclear families of any size, with or without parental information. Variance components are used to construct a test that utilizes information from all available offspring but that is not biased in the presence of linkage or familiality. A permutation test is described for situations in which maximum-likelihood estimates of the variance components are biased. Simulation studies are used to investigate power and error rates of this approach and to highlight situations in which violations of multivariate normality assumptions warrant the permutation test. The relationship between power and the level of linkage disequilibrium for this test suggests that the method is well suited to the analysis of dense maps. The relationship between power and family structure is investigated, and these results are applicable to study design in complex disease, especially for late-onset conditions for which parents are usually not available. When parental genotypes are available, power does not depend greatly on the number of offspring in each family. Power decreases when parental genotypes are not available, but the loss in power is negligible when four or more offspring per family are genotyped. Finally, it is shown that, when siblings are available, the total number of genotypes required in order to achieve comparable power is smaller if parents are not genotyped.
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“Within-family genetic association estimates, such as those obtained from samples of siblings, can provide less biased estimates of direct genetic effects because they are unlikely to be affected by demographic and indirect genetic effects of parents7,17,30–34.”
From Within-sibship genome-wide association analyses decrease bias in estimates of direct genetic effects (2022) · cites this paper as [31]
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“To test for both linkage and association with birth weight variation, we used the QTDT method (Abecasis et al. 2000b) implemented in Merlin (Abecasis et al. 2002).”
MethodFunctional consequences of PRPF39 on distant genes and cisplatin sensitivity
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“Forty-nine so far unknown SNPs within the PDC gene were identified and, together with SNPs for neighbouring genes, used for linkage analysis [102, 103].”
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Power and robustness of three whole genome association mapping approaches in selected populations
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Cell-based Models for Discovery of Pharmacogenomic Markers of Anticancer Agent Toxicity.
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“QTDT program was derived from the transmission disequilibrium test (TDT) program.”
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“As part of another contribution to GAW14, we performed linkage and association analyses using MERLIN [13] and QTDT [14], respectively.”
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Introduction to the Special Issue on Variance Components Methods for Mapping Quantitative Trait Loci
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“Major extensions of VC methods for QTL mapping include incorporating modeling tests of association ( Abecasis et al., 2000a, b; Fulker et al., 1999) and multivariate analysis (Marlow et al., 2003).”
MethodSelf-citationAssociation mapping: methodologies, strategies, and issues
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“Statistical analyses—GWAS stage In the GWAS stage, we used QTDT (quantitative transmission-disequilibrium test) [57] v2.”
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“…component approach, has long been used in genetic studies to estimate genetic parameters, predict breeding values and model correlated family or pedigree data (Henderson, 1963, 1975; Amos, 1994; Falconer and Mackay, 1996; Almasy and Blangero, 1998; Abecasis et al., 2000; Sham and Purcell, 2001).”
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“A modification of the method of Abecasis et al. (2000) provides a specific test of within-family association.”
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Fischer, S. T., Jiang, Y., Broadaway, K. A., Conneely, K. N., & Epstein, M. P. (2018) · Genetic Epidemiology · doi:10.1002/gepi.22116 · Cited by 7
“, 2016) but replace the observed genotype information in that test with robust within-family genotypic information derived from the QTDT framework (Abecasis et al., 2000). In the following sections, we first introduce how we construct our test statistics using the KDC framework and how we make these statistics robust…”
BackgroundMethodInfluentialPatterns of Nucleotide Diversity and Association Mapping
González‐Martínez, S. C., Dillon, S. K., Garnier‐Géré, P. H., Gil, M. R., Grivet, D., Heuertz, M., Jaramillo‐Correa, J. P., Lascoux, M., Neale, D. B., & Savolainen, O. (2011) · CRC Press eBooks · doi:10.1201/b11075-10 · Cited by 7
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An Entropy-Based Measure for QTL Mapping Using Extreme Samples of Population
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“The order of the 10 polymorphisms is T-5991C, A-5466C, T-3892C, A-240T, T-93C, T1237C, G2215A, I/D, G2350A, and 4656(CT)3/2. Table 3 lists 29 haplotypes (http://www.well.ox.ac.uk/∼mfarrall/oxhap_freq.html). It is found that markers I/D and G2350A show strongest association with the circulating ACE level [”
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Bioinformatics Tools for Plant Genomics
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Copy number variants in siblings of Mexican origin concordant for schizophrenia or bipolar disorder
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“Intra-familial tests of association and linkage have also been developed in likelihood-based, variance components contexts (Abecasis et al. 2000; Fulker et al. 1999).”
BackgroundMethodInfluentialA family-based association test to detect gene–gene interactions in the presence of linkage
Lobel, L. D., Thijs, L., Kuznetsova, T., Staessen, J. A., & Steen, K. V. (2012) · European Journal of Human Genetics · doi:10.1038/ejhg.2012.45 · Cited by 6
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Accurate and flexible power calculations on the spot: Applications to genomic research
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HLA alleles and fissured tongue
Kalifatidis, A., Albanidou-Farmaki, E., Daniilidis, M., Markopoulos, A. K., Karyotis, N., & Antoniades, D. (2010) · International Journal of Immunogenetics · doi:10.1111/j.1744-313x.2010.00944.x · Cited by 6
“Relative risks (RR) were calculated where a particular genotype showed a 7, 509–511 509 significantly increased or decreased incidence of fissured tongue subjects compared with unrelated controls (Abecasis et al., 2000).”
BackgroundDetecting X‐linked common and rare variant effects in family‐based sequencing studies
Turkmen, A., & Lin, S. (2020) · Genetic Epidemiology · doi:10.1002/gepi.22352 · Cited by 6
“Linear mixed effect models are powerful tools used to account for multiple sources of heterogeneity including family relatedness Abecasis, Cardon, and Cookson (2000).”
MethodQuantitative Trait Locus Mapping in Rice
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Genomic regions associated with ventro-cranial chronic pleuritis in pig
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“Association tests were performed in the family-based sample using the QTDT program [Abecasis et al., 2000].”
MethodNsengimana, J., & Barrett, J. H. (2008) · Annals of Human Genetics · doi:10.1111/j.1469-1809.2008.00475.x · Cited by 6
“It has since been extended to other family and trait types by different authors (e. g. Allison, 1997; Spielman & Ewens, 1998; Clayton, 1999; Abecasis et al. 2000).”
BackgroundKorostishevsky, M., Vistoropsky, Y., Malkin, I., Kobyliansky, E. D., & Livshits, G. (2008) · Annals of Human Biology · doi:10.1080/03014460802304588 · Cited by 6
“…et al. (2001), which was implemented in the FBAT program; (2) the extreme offspring design t-test (EOT) proposed by Malkin et al. (2002b), which was implemented in the MAN-7 package; and (3) the orthogonal test (OT) proposed by Abecasis et al. (2002), which was implemented in the QTDT program.”
MethodRenal function in relation to three candidate genes in a Chinese population
Wang, J.-G., Liu, L., Zagato, L., Xie, J., Fagard, R. H., Jin, K., Wang, J., Li, Y., Bianchi, G., Staessen, J. A., et al. (2004) · Journal of Molecular Medicine · doi:10.1007/s00109-004-0574-8 · Cited by 6
“Sensitivity analyses in parents and offspring and QTDT analyses which allowed for population stratification and admixture [24] were confirmatory.”
Pedigree Selection and Tests of Linkage in a Hutterite Asthma Pedigree
Greenwood, C. M. T., Bureau, A., Loredo‐Osti, J. C., Roslin, N. M., CRUMLEY, M. J., Brewer, C. G., Fujiwara, T., Goldstein, D. R., & Morgan, K. W. (2001) · Genetic Epidemiology · doi:10.1002/gepi.2001.21.s1.s244 · Cited by 6
Combined Linkage and Association Analysis in Pedigrees
Siegmund, K. D., Vora, H., & Gauderman, W. J. (2001) · Genetic Epidemiology · doi:10.1002/gepi.2001.21.s1.s358 · Cited by 6
Genetic and environmental influences on human responses to odors
Knaapila, A. (2008) · Työväentutkimus Vuosikirja · doi:10.13140/rg.2.1.3779.0560 · Cited by 6
Practical barriers to identifying complex trait loci.
Cardon, L. R. (2003) · American Psychological Association eBooks · doi:10.1037/10480-004 · Cited by 6
Self-citationMapping quantitative effects of oligogenes by allelic association
ZHANG, W., Collins, A. R., Abecasis, G. R., Cardon, L. R., & Morton, N. E. (2002) · Annals of Human Genetics · doi:10.1046/j.1469-1809.2002.00111.x · Cited by 6
Self-citationFamilial resemblances in human whole blood transcriptome
Tremblay, B. L., Guénard, F., Lamarche, B., Përusse, L., & Vohl, M. (2018) · BMC Genomics · doi:10.1186/s12864-018-4698-6 · Cited by 5
“[35] We used full general models in which the variance in gene expression levels of each probe and DNA methylation levels of each CpG site were partitioned into polygenic effects (Vg), common environmental effects shared by family members (Vc), and non-shared environmental effects unique to each individual (Ve).”
MethodKnez, J., Salvi, E., Tikhonoff, V., Stolarz‐Skrzypek, K., Ryabikov, A. N., Thijs, L., Braga, D., Kloch‐Badełek, M., Malyutina, S. K., Casiglia, E., et al. (2014) · BMC Medical Genetics · doi:10.1186/s12881-014-0121-6 · Cited by 5
“[20] in the QTDT software (version 2.”
Moreno-Macías, H., Romieu, I., London, S. J., & Laird, N. M. (2010) · Human Genomics · doi:10.1186/1479-7364-4-5-302 · Cited by 5
“Assuming one outcome per individual, in the two-step modelling approach, the null hypothesis H0 : b3 1⁄4 0, was tested using (21), (22) and the QBAT-I statistic:”
MethodInfluentialStatistical equivalent of the classical TDT for quantitative traits and multivariate phenotypes
Haldar, T., & Ghosh, S. (2015) · Journal of Genetics · doi:10.1007/s12041-015-0563-4 · Cited by 5
Cornes, B. K., Lind, P. A., Medland, S. E., Montgomery, G. W., Nyholt, D. R., & Martin, N. G. (2009) · Faculty of Health; Institute of Health and Biomedical Innovation · Cited by 5
PopPAnTe: population and pedigree association testing for quantitative data
Visconti, A., Al-Shafai, M. N., Al‐Muftah, W., Zaghlool, S. B., Mangino, M., Suhre, K., & Falchi, M. (2017) · BMC Genomics · doi:10.1186/s12864-017-3527-7 · Cited by 5
“PopPAnTe implements an exact linear mixed model equivalent to that implemented in the QTDT software [4].”
BackgroundMethodDang, L., Liu, R., Zhao, W., Zhou, W., Min, Y., & Wang, Z. (2020) · Journal of Integrative Agriculture · doi:10.1016/s2095-3119(20)63176-8 · Cited by 5
Pierre, A. S., Vitezica, Z. G., & Martinez, M. M. (2009) · BMC Proceedings · doi:10.1186/1753-6561-3-s7-s122 · Cited by 5
“Background For pedigree-based association analysis, several methods have been developed that utilize information about transmission of alleles, such as the orthogonal test for within-family variation (quantitative transmission-disequilibrium test, or QTDT) [1,2].”
Beem, A. L., & Boomsma, D. I. (2006) · Twin Research and Human Genetics · doi:10.1375/183242706777591272 · Cited by 5
Association Analysis of Population-Based Quantitative Trait Data: An Assessment of ANOVA
Ghosh, S., & De, G. (2007) · Human Heredity · doi:10.1159/000101426 · Cited by 5
Zhao, L.-J., Xiong, D.-H., Pan, F., Liu, X.-G., Recker, R. R., & Deng, H. (2008) · Human Genetics · doi:10.1007/s00439-008-0536-2 · Cited by 5
“When signiWcant association is observed, the approximate phenotypic variation, due to the detected marker, is calculated as 2p(1 ¡ p)a2, where p is the allele frequency of the marker, and a is the estimate of additive eVect, i.e., E( w) = a (Abecasis et al. 2000a).”
Rohlfs, R. V., Taylor, C. A., Mirea, L., Bull, S. B., Corey, M. L., & Anderson, A. D. (2007) · BMC Proceedings · doi:10.1186/1753-6561-1-s1-s137 · Cited by 5
Association Studies of QTL for Multi-Allele Markers by Mixed Models
Fan, R., & Jung, J. (2002) · Human Heredity · doi:10.1159/000068839 · Cited by 5
Quantifying the Relationship Between Gene Expressions and Trait Values in General Pedigrees
Lü, Y., Liu, P., Liu, Y.-J., Xu, F., & Deng, H. (2004) · Genetics · doi:10.1534/genetics.104.031666 · Cited by 5
“Simulations showed that permutation tests warrant correct type I errors under violations of multivariate normality assumption (Abecasis et al. 2000).”
MethodChiang, M.-C., Marina Barysheva, A., McMahon, K. L., de Zubicaray, G. I., Johnson, K., Martin, N. G., Toga, A. W., Wright, M. J., & Thompson, P. M. (2011) · IEEE International Symposium on Biomedical Imaging (ISBI) · doi:10.1109/isbi.2011.5872533 · Cited by 5
“The mean FA for each ROI was associated respectively with each genotyped SNP across the whole genome (n = 529,497), using the Quantitative Transmission Disequilibrium Test (QTDT) program [10].”
MethodLinkage and association studies of QTL for nuclear families by mixed models
Fan, R. (2003) · Biostatistics · doi:10.1093/biostatistics/4.1.75 · Cited by 5
for the European Project on Genes in Hypertension (EPOGH) Investigators, Jin, Y., Kuznetsova, T., Tikhonoff, V., Thijs, L., Hasenkamp, S., Bäumer, V., Stolarz‐Skrzypek, K., Ryabikov, A. N., Richart, T., et al. (2009) · Hypertension Research · doi:10.1038/hr.2008.30 · Cited by 5
Metadata
- Authors
- Abecasis, G. R., Cardon, L. R., & Cookson, W. O. C.
- Affiliations
- Centre for Human Genetics (GB)
- Corresponding author
- Abecasis, G.R.
- ORCID
- Abecasis, G.R.
- Venue
- The American Journal of Human Genetics
- Publisher
- Elsevier BV
- Published
- 2000-01
- Volume
- 66
- Issue
- 1
- Pages
- 279-292
- ISSN
- 0002-9297 (ISSN-L)
- PMC
- PMC1288332
- OpenAlex
- W2078625752
- Cited by
- 1,126
- References
- 30
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 7 · 2023: 7 · 2022: 6 · 2021: 13 · 2020: 15 · 2019: 13 · 2018: 18 · 2017: 23 · 2016: 22 · 2015: 26 · 2014: 27 · 2013: 38 · 2012: 51
- FWCI
- 27.12
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- The American Journal of Human Genetics (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Wellcome Trust
- Topics
- 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
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
- Keywords
- association mapping, quantitative traits, nuclear family, variance components, permutation tests, fine mapping, power analysis, family structure, parental genotypes, multivariate normality, research design
- MeSH terms
- Genetics, Population, Humans, Models, Genetic, Nuclear Family, Linkage Disequilibrium, Quantitative Trait, Heritable
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