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Genetics. 1995 Dec;141(4):1605-17.

Deleterious background selection with recombination.

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1
Department of Ecology and Evolutionary Biology, University of California, Irvine 92717, USA. rhudson@uci.edu

Abstract

An analytic expression for the expected nucleotide diversity is obtained for a neutral locus in a region with deleterious mutation and recombination. Our analytic results are used to predict levels of variation for the entire third chromosome of Drosophila melanogaster. The predictions are consistent with the low levels of variation that have been observed at loci near the centromeres of the third chromosome of D. melanogaster. However, the low levels of variation observed near the tips of this chromosome are not predicted using currently available estimates of the deleterious mutation rate and of selection coefficients. If considerably smaller selection coefficients are assumed, the low observed levels of variation at the tips of the third chromosome are consistent with the background selection model.

PMID:
8601498
PMCID:
PMC1206891
[Indexed for MEDLINE]
Free PMC Article
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