Abstract

In recent years, there has been a focus on methods to understand the etiology of complex disorders which do not follow simple Mendelian, single locus segregation. Some of these methods make use of components of genetic variance. After giving simple general formulations to derive all the components of total genetic variance for multilocus models, we investigated these components for a series of fifteen two-allele two-locus disease models with incomplete penetrance. We discussed the restrictions and limitations implied by the disease prevalence on both these components and the gene frequencies. Finally, we investigated the relative magnitudes of the components of variance for the various models when penetrance is complete. It is found that the epistatic components of variance are non-trivial, relative to the other components of variance, in seven of the models studied. These models may be of special interest for the study of complex diseases in which the recurrence among relatives beyond first degree decreases sharply.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR003655-15
Application #
6348100
Study Section
Project Start
2000-09-01
Project End
2001-08-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
15
Fiscal Year
2000
Total Cost
$15,016
Indirect Cost

  Institution

Name
Case Western Reserve University
Department
Type
DUNS #
077758407
City
Cleveland
State
OH
Country
United States
Zip Code
44106

  Publications

Elston, Robert C; Satagopan, Jaya; Sun, Shuying (2017) Statistical Genetic Terminology. Methods Mol Biol 1666:1-9
Thota, Prashanthi N; Zackria, Shamiq; Sanaka, Madhusudhan R et al. (2017) Racial Disparity in the Sex Distribution, the Prevalence, and the Incidence of Dysplasia in Barrett's Esophagus. J Clin Gastroenterol 51:402-406
Lemas, Dominick J; Klimentidis, Yann C; Aslibekyan, Stella et al. (2016) Polymorphisms in stearoyl coa desaturase and sterol regulatory element binding protein interact with N-3 polyunsaturated fatty acid intake to modify associations with anthropometric variables and metabolic phenotypes in Yup'ik people. Mol Nutr Food Res 60:2642-2653
Day, Kenneth; Waite, Lindsay L; Alonso, Arnald et al. (2016) Heritable DNA Methylation in CD4+ Cells among Complex Families Displays Genetic and Non-Genetic Effects. PLoS One 11:e0165488
Justice, Cristina M; Bishop, Kevin; Carrington, Blake et al. (2016) Evaluation of IRX Genes and Conserved Noncoding Elements in a Region on 5p13.3 Linked to Families with Familial Idiopathic Scoliosis and Kyphosis. G3 (Bethesda) 6:1707-12
Petrovic, Dusan; Pivin, Edward; Ponte, Belen et al. (2016) Sociodemographic, behavioral and genetic determinants of allostatic load in a Swiss population-based study. Psychoneuroendocrinology 67:76-85
Liang, Jingjing; Cade, Brian E; Wang, Heming et al. (2016) Comparison of Heritability Estimation and Linkage Analysis for Multiple Traits Using Principal Component Analyses. Genet Epidemiol 40:222-32
Wang, Chuchu; Wu, Manman; Qian, Jin et al. (2016) Identification of rare variants in TNNI3 with atrial fibrillation in a Chinese GeneID population. Mol Genet Genomics 291:79-92
Castiblanco, John; Sarmiento-Monroy, Juan Camilo; Mantilla, Ruben Dario et al. (2015) Familial Aggregation and Segregation Analysis in Families Presenting Autoimmunity, Polyautoimmunity, and Multiple Autoimmune Syndrome. J Immunol Res 2015:572353
Shetty, Priya B; Tang, Hua; Feng, Tao et al. (2015) Variants for HDL-C, LDL-C, and triglycerides identified from admixture mapping and fine-mapping analysis in African American families. Circ Cardiovasc Genet 8:106-13

Showing the most recent 10 out of 922 publications