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Genome wide analyses reveal little evidence for adaptive evolution in many plant species.

Publication ,  Journal Article
Gossmann, TI; Song, B-H; Windsor, AJ; Mitchell-Olds, T; Dixon, CJ; Kapralov, MV; Filatov, DA; Eyre-Walker, A
Published in: Molecular biology and evolution
August 2010

The relative contribution of advantageous and neutral mutations to the evolutionary process is a central problem in evolutionary biology. Current estimates suggest that whereas Drosophila, mice, and bacteria have undergone extensive adaptive evolution, hominids show little or no evidence of adaptive evolution in protein-coding sequences. This may be a consequence of differences in effective population size. To study the matter further, we have investigated whether plants show evidence of adaptive evolution using an extension of the McDonald-Kreitman test that explicitly models slightly deleterious mutations by estimating the distribution of fitness effects of new mutations. We apply this method to data from nine pairs of species. Altogether more than 2,400 loci with an average length of approximately 280 nucleotides were analyzed. We observe very similar results in all species; we find little evidence of adaptive amino acid substitution in any comparison except sunflowers. This may be because many plant species have modest effective population sizes.

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Published In

Molecular biology and evolution

DOI

EISSN

1537-1719

ISSN

0737-4038

Publication Date

August 2010

Volume

27

Issue

8

Start / End Page

1822 / 1832

Related Subject Headings

  • Sequence Analysis, DNA
  • Population Density
  • Plants
  • Mutation
  • Molecular Sequence Data
  • Mice
  • Genome, Plant
  • Genetic Fitness
  • Evolutionary Biology
  • Biological Evolution
 

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Gossmann, T. I., Song, B.-H., Windsor, A. J., Mitchell-Olds, T., Dixon, C. J., Kapralov, M. V., … Eyre-Walker, A. (2010). Genome wide analyses reveal little evidence for adaptive evolution in many plant species. Molecular Biology and Evolution, 27(8), 1822–1832. https://doi.org/10.1093/molbev/msq079
Gossmann, Toni I., Bao-Hua Song, Aaron J. Windsor, Thomas Mitchell-Olds, Christopher J. Dixon, Maxim V. Kapralov, Dmitry A. Filatov, and Adam Eyre-Walker. “Genome wide analyses reveal little evidence for adaptive evolution in many plant species.Molecular Biology and Evolution 27, no. 8 (August 2010): 1822–32. https://doi.org/10.1093/molbev/msq079.
Gossmann TI, Song B-H, Windsor AJ, Mitchell-Olds T, Dixon CJ, Kapralov MV, et al. Genome wide analyses reveal little evidence for adaptive evolution in many plant species. Molecular biology and evolution. 2010 Aug;27(8):1822–32.
Gossmann, Toni I., et al. “Genome wide analyses reveal little evidence for adaptive evolution in many plant species.Molecular Biology and Evolution, vol. 27, no. 8, Aug. 2010, pp. 1822–32. Epmc, doi:10.1093/molbev/msq079.
Gossmann TI, Song B-H, Windsor AJ, Mitchell-Olds T, Dixon CJ, Kapralov MV, Filatov DA, Eyre-Walker A. Genome wide analyses reveal little evidence for adaptive evolution in many plant species. Molecular biology and evolution. 2010 Aug;27(8):1822–1832.
Journal cover image

Published In

Molecular biology and evolution

DOI

EISSN

1537-1719

ISSN

0737-4038

Publication Date

August 2010

Volume

27

Issue

8

Start / End Page

1822 / 1832

Related Subject Headings

  • Sequence Analysis, DNA
  • Population Density
  • Plants
  • Mutation
  • Molecular Sequence Data
  • Mice
  • Genome, Plant
  • Genetic Fitness
  • Evolutionary Biology
  • Biological Evolution