Results 11 to 20 of about 99,428 (256)

Multivariate Survival Mixed Models for Genetic Analysis of Longevity Traits [PDF]

open access: yes, 2014
A class of multivariate mixed survival models for continuous and discrete time with a complex covariance structure is introduced in a context of quantitative genetic applications.
Labouriau, Rodrigo   +2 more
core   +2 more sources

The Genetic and Environmental Sources of Resemblance Between Normative Personality and Personality Disorder Traits [PDF]

open access: yes, 2017
Recent work has suggested a high level of congruence between normative personality, most typically represented by the big five factors, and abnormal personality traits.
Aggen, S. H.   +8 more
core   +2 more sources

Implementation of the Realized Genomic Relationship Matrix to Open-Pollinated White Spruce Family Testing for Disentangling Additive from Nonadditive Genetic Effects

open access: yesG3: Genes, Genomes, Genetics, 2016
The open-pollinated (OP) family testing combines the simplest known progeny evaluation and quantitative genetics analyses as candidates’ offspring are assumed to represent independent half-sib families.
Omnia Gamal El-Dien   +5 more
doaj   +1 more source

Genetic and environmental influences on eating behavior - a study of twin pairs reared apart or reared together [PDF]

open access: yes, 2012
This study examined the relative influence of genetic versus environmental factors on specific aspects of eating behavior. Adult monozygotic twins (22 pairs and 3 singleton reared apart, 38 pairs and 9 singleton reared together, age 18-76 years, BMI 17 ...
Bouchard, Thomas J.   +8 more
core   +1 more source

Dissecting genetic effects with imprinting

open access: yesFrontiers in Ecology and Evolution, 2014
Models of genetic effects are mathematical representations of a genotype-to-phenotype (GP) map that, rather than accounting for a raw map assigning phenotypes to genotypes, rely on parameters with deliberate evolutionary meaning—additive and interaction ...
José M eÁlvarez-Castro   +1 more
doaj   +1 more source

Sex-specific genetic effects influence variation in body composition [PDF]

open access: yes, 2008
Aims/hypothesis: Despite well-known sex differences in body composition it is not known whether sex-specific genetic or environmental effects contribute to these differences.
A Comuzzie   +42 more
core   +4 more sources

Genetic epidemiology of fecal egg excretion during Schistosoma mansoni infection in an endemic area in Minas Gerais, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
There is considerable variation in the level of fecal egg excretion during Schistosoma mansoni infections. Within a single endemic area, the distribution of egg counts is typically overdispersed, with the majority of eggs excreted coming from a minority ...
J Bethony   +8 more
doaj   +1 more source

Once upon Multivariate Analyses: When They Tell Several Stories about Biological Evolution. [PDF]

open access: yesPLoS ONE, 2015
Geometric morphometrics aims to characterize of the geometry of complex traits. It is therefore by essence multivariate. The most popular methods to investigate patterns of differentiation in this context are (1) the Principal Component Analysis (PCA ...
Sabrina Renaud   +4 more
doaj   +1 more source

A re-formulation of generalized linear mixed models to fit family data in genetic association studies

open access: yesFrontiers in Genetics, 2015
The generalized linear mixed model (GLMM) is a useful tool for modeling genetic correlation among family data in genetic association studies. However, when dealing with families of varied sizes and diverse genetic relatedness, the GLMM has a special ...
Tao eWang   +6 more
doaj   +1 more source

How to perform meaningful estimates of genetic effects. [PDF]

open access: yesPLoS Genetics, 2008
Although the genotype-phenotype map plays a central role both in Quantitative and Evolutionary Genetics, the formalization of a completely general and satisfactory model of genetic effects, particularly accounting for epistasis, remains a theoretical ...
José M Alvarez-Castro   +2 more
doaj   +1 more source

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