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Signatures of demography and recombination at coding genes in naturally-distributed populations of Arabidopsis lyrata subsp. petraea.

Publication ,  Journal Article
Vigueira, CC; Rauh, B; Mitchell-Olds, T; Lawton-Rauh, AL
Published in: PloS one
January 2013

Demography impacts the observed standing level of genetic diversity present in populations. Distinguishing the relative impacts of demography from selection requires a baseline of expressed gene variation in naturally occurring populations. Six nuclear genes were sequenced to estimate the patterns and levels of genetic diversity in natural Arabidopsis lyrata subsp. petraea populations that differ in demographic histories since the Pleistocene. As expected, northern European populations have genetic signatures of a strong population bottleneck likely due to glaciation during the Pleistocene. Levels of diversity in the northern populations are about half of that in central European populations. Bayesian estimates of historical population size changes indicate that central European populations also have signatures of population size change since the last glacial maxima, suggesting that these populations are not as stable as previously thought. Time since divergence amongst northern European populations is higher than amongst central European populations, suggesting that the northern European populations were established before the Pleistocene and survived glaciation in small separated refugia. Estimates of demography based on expressed genes are complementary to estimates based on microsatellites and transposable elements, elucidating temporal shifts in population dynamics and confirming the importance of marker selection for tests of demography.

Duke Scholars

Published In

PloS one

DOI

EISSN

1932-6203

ISSN

1932-6203

Publication Date

January 2013

Volume

8

Issue

3

Start / End Page

e58916

Related Subject Headings

  • Recombination, Genetic
  • Quantitative Trait Loci
  • Population Density
  • Haplotypes
  • Geography
  • Genetics, Population
  • Genetic Variation
  • Genes, Plant
  • General Science & Technology
  • Evolution, Molecular
 

Citation

APA
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ICMJE
MLA
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Vigueira, C. C., Rauh, B., Mitchell-Olds, T., & Lawton-Rauh, A. L. (2013). Signatures of demography and recombination at coding genes in naturally-distributed populations of Arabidopsis lyrata subsp. petraea. PloS One, 8(3), e58916. https://doi.org/10.1371/journal.pone.0058916
Vigueira, Cynthia C., Brad Rauh, Thomas Mitchell-Olds, and Amy L. Lawton-Rauh. “Signatures of demography and recombination at coding genes in naturally-distributed populations of Arabidopsis lyrata subsp. petraea.PloS One 8, no. 3 (January 2013): e58916. https://doi.org/10.1371/journal.pone.0058916.
Vigueira, Cynthia C., et al. “Signatures of demography and recombination at coding genes in naturally-distributed populations of Arabidopsis lyrata subsp. petraea.PloS One, vol. 8, no. 3, Jan. 2013, p. e58916. Epmc, doi:10.1371/journal.pone.0058916.

Published In

PloS one

DOI

EISSN

1932-6203

ISSN

1932-6203

Publication Date

January 2013

Volume

8

Issue

3

Start / End Page

e58916

Related Subject Headings

  • Recombination, Genetic
  • Quantitative Trait Loci
  • Population Density
  • Haplotypes
  • Geography
  • Genetics, Population
  • Genetic Variation
  • Genes, Plant
  • General Science & Technology
  • Evolution, Molecular