Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 369756
Title The quantitative genetics of phenotypic variation in animals
Author(s) Hill, W.G.; Mulder, H.A.; Zhang, X.S.
Source Acta Agriculturae Scandinavica Section A-Animal Science 57 (2007)4. - ISSN 0906-4702 - p. 175 - 182.
DOI https://doi.org/10.1080/09064700801959353
Department(s) LR - Backoffice
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) mutation-selection balance - environmental variance - drosophila-melanogaster - residual variance - stabilizing selection - directional selection - changing environments - artificial selection - plastic traits - heterogeneity
Abstract Considerable attention has been paid to estimating genetic variability in quantitative traits and to how it is maintained and changed by selection in natural and domesticated populations, but rather little attention has been paid to how levels of environmental and phenotypic variance are influenced. We review recent estimates, showing there is substantial genetic variation in levels of environmental and phenotypic variation. We review evolutionary forces that can affect the level of environmental variation, and find that most models lead to a predicted reduction. We thus argue that its maintenance is a consequence of factors such as the intrinsic cost of homogeneity, phenotypic plasticity to variable environments, or mutants that increase variance. We show how to construct a selection index to predict the magnitude of changes in variance as a result of artificial selection, and consider the opportunities for artificial selection to increase uniformity
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