NDLI: Signatures of Demography and Recombination at Coding Genes in Naturally-Distributed Populations of Arabidopsis Lyrata Subsp. Petraea

Content Provider	PubMed Central
Author	Vigueira, Cynthia C. Rauh, Brad Thomas, Mitchell-olds Lawton-rauh, Amy L.
Editor	Ingvarsson, Pär K.
Copyright Year	2013
Abstract	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.
Related Links	http://dx.doi.org/10.1371/journal.pone.0058916
Starting Page	58916
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	3
Volume Number	8
Language	English
Publisher	Public Library of Science
Publisher Date	2013-03-12
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Contrasting Patterns of Genetic Structuring in Natural Populations of Arabidopsis lyrata Subsp. petraea across Different Regions in Northern Europe

Natural variation in tolerance to sub-zero temperatures among populations of Arabidopsis lyrata ssp. petraea

Demography and weak selection drive patterns of transposable element diversity in natural populations of Arabidopsis lyrata

Data from: Relatively weak inbreeding depression in selfing but also in outcrossing populations of North American Arabidopsis lyrata (Dataset)

Data from: Arabidopsis hybrid speciation processes (Dataset)

Testing for Effects of Recombination Rate on Nucleotide Diversity in Natural Populations of Arabidopsis lyrata

Data from: Strong inbreeding depression in two Scandinavian populations of the self-incompatible perennial herb Arabidopsis lyrata (Dataset)

Genetic consequences of seed banks in the perennial herb Arabidopsis lyrata subsp. petraea (Brassicaceae).

Data from: Tissue culture as a source of replicates in non-model plants: variation in cold response in Arabidopsis lyrata ssp. petraea (Dataset)

Signatures of Demography and Recombination at Coding Genes in Naturally-Distributed Populations of Arabidopsis Lyrata Subsp. Petraea

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Contrasting Patterns of Genetic Structuring in Natural Populations of Arabidopsis lyrata Subsp. petraea across Different Regions in Northern Europe

Natural variation in tolerance to sub-zero temperatures among populations of Arabidopsis lyrata ssp. petraea

Demography and weak selection drive patterns of transposable element diversity in natural populations of Arabidopsis lyrata

Data from: Relatively weak inbreeding depression in selfing but also in outcrossing populations of North American Arabidopsis lyrata (Dataset)

Data from: Arabidopsis hybrid speciation processes (Dataset)

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Signatures of Demography and Recombination at Coding Genes in Naturally-Distributed Populations of Arabidopsis Lyrata Subsp. Petraea