Common garden experiments to study local adaptation need to account for population structure

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Serval ID
serval:BIB_07E8157C6B8F
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Common garden experiments to study local adaptation need to account for population structure
Journal
Journal of Ecology
Author(s)
Villemereuil Pierre, Gaggiotti Oscar E., Goudet Jérôme
Publication state
Published
Issued date
15/10/2020
Peer-reviewed
Oui
Volume
n/a
Number
n/a
Language
english
Abstract
Abstract Common garden experiments are valuable to study adaptive phenomenon and adaptive potential, in that they allow to study local adaptation without the confounding effect of phenotypic plasticity. The QST?FST comparison framework, comparing genetic differentiation at the phenotypic and molecular level, is the usual way to test and measure whether local adaptation influences phenotypic divergence between populations. Here, we highlight that the assumptions behind the expected equality QST = FST under neutrality correspond to a very simple model of population genetics. While the equality might, on average, be robust to violation of such assumptions, more complex population structure can generate strong evolutionary noise. Synthesis: We highlight recent methodological developments aimed at overcoming this issue and at providing a more general framework to detect local adaptation, using less restrictive assumptions. We invite empiricists to look into these methods and theorists to continue developing even more general methods.
Keywords
common garden, Local adaptation, phenotypic divergence, population genetics, population structure, QST ? FST comparison, quantitative genetics
Funding(s)
Swiss National Science Foundation / 31003A_179358
Swiss National Science Foundation / 31003A_138180
Create date
22/10/2020 16:15
Last modification date
23/10/2020 7:08
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