Impact of selection, mutation rate and genetic drift on human genetic variation
نویسندگان
چکیده
منابع مشابه
Impact of selection, mutation rate and genetic drift on human genetic variation.
The accumulation of genome-wide information on single nucleotide polymorphisms in humans provides an unprecedented opportunity to detect the evolutionary forces responsible for heterogeneity of the level of genetic variability across loci. Previous studies have shown that history of recombination events has produced long haplotype blocks in the human genome, which contribute to this heterogenei...
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Although there have many studies of the population genetical consequences of environmental variation, little is known about the combined effects of genetic drift and fluctuating selection in structured populations. Here we use diffusion theory to investigate the effects of temporally and spatially varying selection on a population of haploid individuals subdivided into a large number of demes. ...
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Genetic robustness is defined as the constancy of a phenotype in the face of deleterious mutations. Overexpression of chaperones, to assist the folding of proteins carrying deleterious mutations, is so far one of the most accepted molecular mechanisms enhancing genetic robustness. Most theories on the evolution of robustness have focused on the implications of high mutation rate. Here we show t...
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ژورنال
عنوان ژورنال: Human Molecular Genetics
سال: 2003
ISSN: 1460-2083
DOI: 10.1093/hmg/ddg359