Variance components of fitness under stabilizing selection
نویسندگان
چکیده
منابع مشابه
Evolution of molecular phenotypes under stabilizing selection
Molecular phenotypes are important links between genomic information and organismic functions, fitness, and evolution. Complex phenotypes, which are also called quantitative traits, often depend on multiple genomic loci. Their evolution builds on genome evolution in a complicated way, which involves selection, genetic drift, mutations and recombination. Here we develop a coarse-grained evolutio...
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Directional selection is prevalent in nature, yet phenotypes tend to remain relatively constant, suggesting a limit to trait evolution. However, the genetic basis of this limit is unresolved. Given widespread pleiotropy, opposing selection on a trait may arise from the effects of the underlying alleles on other traits under selection, generating net stabilizing selection on trait genetic varian...
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Variance-stabilizing transformations are commonly exploited in order to make non-homoskedastic data easily tractable by standard methods. However, for the most common families of distributions (e.g., binomial, Poisson, etc.) exact stabilization is not possible and even achieving some approximate stabilization turns out to be rather challenging. We approach the variance stabilization problem as ...
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The form of Darwinian selection has important ecological and management implications. Negative effects of harvesting are often ascribed to size truncation (i.e. strictly directional selection against large individuals) and resultant decrease in trait variability, which depresses capacity to buffer environmental change, hinders evolutionary rebound and ultimately impairs population recovery. How...
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Grieshop, K. 2017. Sexual conflict, sexual selection, and genetic variance in fitness. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1538. 38 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0022-1. Understanding sex-specific genetic variance for fitness is of fundamental importance to our understanding of evolution. This thesis ...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 1988
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672300023934