Results 21 to 30 of about 5,828,877 (254)

Genetic (co)variance components for slaughter traits in a multi-breed sheep population

Animal, 2023
Carcass value is one of the main contributors to revenue in meat sheep enterprises, while age at slaughter is also a major component to the cost of production.
N. McHugh, T. Pabiou, K. McDermott, D.P. Berry   +3 more
doaj   +1 more source

Restricted Maximum Likelihood Estimation of Variance Components for Univariate Animal Models Using Sparse Matrix Techniques and Average Information [PDF]

, 1995
An algorithm is described to estimate variance components for a univariate animal model using REML. Sparse matrix techniques are employed to calculate those elements of the inverse of the coefficient matrix required for the first derivatives of the ...
JOHNSON, DL, THOMPSON, R, R. Thompson, D.L. Johnson   +3 more
core   +1 more source

Variance component analysis of skin and weight data for sheep subjected to rapid inbreeding [PDF]

, 1999
A variance component analysis was carried out on data from a 20-year experiment in the rapid inbreeding of purebred and crossbred lines of three hill breeds of sheep.
Shaw, F.H., Frank H Shaw, JA Woolliams, Shaw Frank H, Woolliams JA, Frank H. Shaw, J.A. Woolliams, Woolliams, John, J. A. Woolliams   +8 more
core   +1 more source

Genetic variance components/parameters for the traits studied in field salinity stress.

, 2022
Genetic variance components/parameters for the traits studied in field salinity stress.
Mohsen Esmaeilzadeh Moghaddam (12257183), Saeed Omrani (12257177), Ahmad Arzani (12257180), Mehrdad Mahlooji (12257186)   +3 more
core   +1 more source

Contribution of genetic effects to genetic variance components with epistasis and linkage disequilibrium

BMC Genetics, 2009
Background Cockerham genetic models are commonly used in quantitative trait loci (QTL) analysis with a special feature of partitioning genotypic variances into various genetic variance components, while the F∞ genetic models are widely used in genetic ...
Zeng Zhao-Bang, Wang Tao
doaj   +1 more source

The Genetic Architecture of Quantitative Traits Cannot Be Inferred from Variance Component Analysis. [PDF]

PLoS Genetics, 2016
Classical quantitative genetic analyses estimate additive and non-additive genetic and environmental components of variance from phenotypes of related individuals without knowing the identities of quantitative trait loci (QTLs). Many studies have found a
Wen Huang, Trudy F C Mackay
doaj   +1 more source

Genetic variance components/parameters for the traits studied in normal field conditions.

, 2022
Genetic variance components/parameters for the traits studied in normal field conditions.
Mohsen Esmaeilzadeh Moghaddam (12257183), Saeed Omrani (12257177), Ahmad Arzani (12257180), Mehrdad Mahlooji (12257186)   +3 more
core   +1 more source

Stratified mass selection, individual selection between and within, and genetic gains in native maize varieties [PDF]

Revista Ceres
Maize is an important cereal that is grown and consumed all over the world. Among the selection methods that contribute to increasing the frequency of favorable alleles in native maize populations, selection between and within and stratified mass ...
Joaes Alves da Silva Pereira, Vanderley Borges dos Santos   +1 more
doaj   +1 more source

On Flexible finite polygenic models for multiple-trait evaluation [PDF]

, 2002
Finite polygenic models (FPM) might be an alternative to the infinitesimal model (TIM) for the genetic evaluation of pedigreed multiple-generation populations for multiple quantitative traits.
Bink, M.C.A.M.
core   +1 more source

Epistasis Is a Major Determinant of the Additive Genetic Variance in Mimulus guttatus. [PDF]

PLoS Genetics, 2015
The influence of genetic interactions (epistasis) on the genetic variance of quantitative traits is a major unresolved problem relevant to medical, agricultural, and evolutionary genetics.
Patrick J Monnahan, John K Kelly
doaj   +1 more source