ArticleGenetics2007
Patterns of molecular variation and evolution in Drosophila americana and its relatives.
Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Article
- Article
- Adaptive evolution and effective population size in wild house mice.Molecular biology and evolution · 2012Article
- Weak selection and protein evolution.Genetics · 2012Review
- Selection on codon usage and base composition in Drosophila americana.Biology letters · 2012Article
- Weighing the evidence for adaptation at the molecular level.Trends in genetics : TIG · 2011Article
- Evidence for pervasive adaptive protein evolution in wild mice.PLoS genetics · 2010Article
- Pervasive natural selection in the Drosophila genome?PLoS genetics · 2009Article
- Nucleotide polymorphism and within-gene recombination in Daphnia magna and D. pulex, two cyclical parthenogens.Genetics · 2009Article
- Article
- Similar rates of protein adaptation in Drosophila miranda and D. melanogaster, two species with different current effective population sizes.BMC evolutionary biology · 2008Article
- Molecular evolution of synonymous codon usage in Populus.BMC evolutionary biology · 2008Article
- Article
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2 authors.
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Abstract
We present the results of a survey of DNA sequence variability at X-linked and autosomal loci in Drosophila americana and of patterns of DNA sequence evolution among D. americana and four other related species in the virilis group of Drosophila. D. americana shows a typical level of silent polymorphism for a Drosophila species, but has an unusually low ratio of nonsynonymous to silent variation. Both D. virilis and D. americana also show a low ratio of nonsynonymous to synonymous substitutions along their respective lineages since the split from their common ancestor. The proportion of amino acid substitutions between D. americana and its relatives that are caused by positive selection, as estimated by extensions of the McDonald-Kreitman test, appears to be unusually high. We cannot, however, exclude the possibility that this reflects a recent increase in the intensity of selection on nonsynonymous mutations in D. americana and D. virilis. We also find that base composition at neutral sites appears to be in overall equilibrium among these species, but there is evidence for departure from equilibrium for codon usage in some lineages.
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