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2022
AbstractMost phenotypic traits are the product of many genes as well as environmental effects, and the resulting phenotypic variation is quantitative rather than qualitative. The extent to which traits are under genetic control is termed heritability, and can be estimated by analyzing the phenotypic similarity of related individuals.
Fred W. Allendorf +4 more
exaly +4 more sources
AbstractMost phenotypic traits are the product of many genes as well as environmental effects, and the resulting phenotypic variation is quantitative rather than qualitative. The extent to which traits are under genetic control is termed heritability, and can be estimated by analyzing the phenotypic similarity of related individuals.
Fred W. Allendorf +4 more
exaly +4 more sources
Evolutionary quantitative genetics of nonlinear developmental systems [PDF]
Evolution; International Journal of Organic Evolution, 2015 In quantitative genetics, the effects of developmental relationships among traits on microevolution are generally represented by the contribution of pleiotropy to additive genetic covariances.
Michael B Morrissey
exaly +3 more sources
2020
Quantitative genetics is the study of continuously varying traits which make up the majority of biological attributes of evolutionary and commercial interest. This book provides a much-needed up-to-date, in-depth yet accessible text for the field. In lucid language, the author guides readers through the main concepts of population and quantitative ...
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Quantitative genetics is the study of continuously varying traits which make up the majority of biological attributes of evolutionary and commercial interest. This book provides a much-needed up-to-date, in-depth yet accessible text for the field. In lucid language, the author guides readers through the main concepts of population and quantitative ...
+4 more sources
2013
This chapter focuses on quantitative genetics, which analyses the inheritance of complex traits. Complex traits are multifactorial: their expression is influenced by multiple genes and various environmental factors. Most complex traits exhibit continuous phenotypic variation and threshold traits exhibit just two phenotypes.
J. Gai, J. Lu
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This chapter focuses on quantitative genetics, which analyses the inheritance of complex traits. Complex traits are multifactorial: their expression is influenced by multiple genes and various environmental factors. Most complex traits exhibit continuous phenotypic variation and threshold traits exhibit just two phenotypes.
J. Gai, J. Lu
openaire +2 more sources
QUANTITATIVE GENETICS IN PSYCHOLOGY
British Journal of Mathematical and Statistical Psychology, 1971The following paper proposes a simple theoretical model, capable of progressive expansion, to serve as a basis for the statistical investigation of mental inheritance. Formulae are deduced for the analysis of phenotypic variances, and for estimating the covariances and correlations between relatives of different degrees of kinship.
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2002
Abstract Quantitative genetics has traditionally been based on investigations of continuous or ‘metric’ phenotypes, where there are measurable differences between individuals, rather than on phenotypes that are simply present or absent (Falconer and Mackay 1996).
Alastair Cardno, Peter McGuffin
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Abstract Quantitative genetics has traditionally been based on investigations of continuous or ‘metric’ phenotypes, where there are measurable differences between individuals, rather than on phenotypes that are simply present or absent (Falconer and Mackay 1996).
Alastair Cardno, Peter McGuffin
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Understanding quantitative genetic variation
Nature Reviews Genetics, 2002Until recently, it was impracticable to identify the genes that are responsible for variation in continuous traits, or to directly observe the effects of their different alleles. Now, the abundance of genetic markers has made it possible to identify quantitative trait loci (QTL)--the regions of a chromosome or, ideally, individual sequence variants ...
N H, Barton, P D, Keightley
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2012
AbstractIn this chapter the authors consider the theoretical basis of inheritance and possible sources of phenotypic variation and familial resemblance. The investigation of the genetic basis of psychiatric disorders first requires us to examine to what extent genes and environment contribute to a given disorder or trait.
Anita Thapar, Peter McGuffin
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AbstractIn this chapter the authors consider the theoretical basis of inheritance and possible sources of phenotypic variation and familial resemblance. The investigation of the genetic basis of psychiatric disorders first requires us to examine to what extent genes and environment contribute to a given disorder or trait.
Anita Thapar, Peter McGuffin
openaire +1 more source
Quantitative Traits and Quantitative Genetics
2014In contrast with qualitative or dichotomous traits, quantitative traits are measured using quantitative or semi-quantitative variables and their inheritance is controlled by multiple genes acting independently or in association. Quantitative traits are also influenced to varying degrees by the environment and this explains why they are often designated
Jean-Louis Guénet +3 more
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