Selection patterns on early-life phenotypic traits in Pinus sylvestris are associated with precipitation and temperature along a climatic gradient in Europe

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Ramirez-Valiente , J A , Sole-Medina , A , Pyhäjärvi , T , Cervantes , S , Kesalahti , R , Kujala , S T , Kumpula , T , Heer , K , Opgenoorth , L , Siebertz , J , Danusevicius , D , Notivol , E , Benavides , R & Robledo-Arnuncio , J J 2021 , ' Selection patterns on early-life phenotypic traits in Pinus sylvestris are associated with precipitation and temperature along a climatic gradient in Europe ' , New Phytologist , vol. 229 , no. 5 , pp. 3009-3025 . https://doi.org/10.1111/nph.17029

Title: Selection patterns on early-life phenotypic traits in Pinus sylvestris are associated with precipitation and temperature along a climatic gradient in Europe
Author: Ramirez-Valiente, Jose Alberto; Sole-Medina, Aida; Pyhäjärvi, Tanja; Cervantes, Sandra; Kesalahti, Robert; Kujala, Sonja T.; Kumpula, Timo; Heer, Katrin; Opgenoorth, Lars; Siebertz, Jan; Danusevicius, Darius; Notivol, Eduardo; Benavides, Raquel; Robledo-Arnuncio, Juan Jose
Other contributor: University of Helsinki, Viikki Plant Science Centre (ViPS)



Date: 2021-03
Language: eng
Number of pages: 17
Belongs to series: New Phytologist
ISSN: 0028-646X
DOI: https://doi.org/10.1111/nph.17029
URI: http://hdl.handle.net/10138/335624
Abstract: Understanding the dynamics of selection is key to predicting the response of tree species to new environmental conditions in the current context of climate change. However, selection patterns acting on early recruitment stages and their climatic drivers remain largely unknown in most tree species, despite being a critical period of their life cycle. We measured phenotypic selection on Pinus sylvestris seed mass, emergence time and early growth rate over 2 yr in four common garden experiments established along the latitudinal gradient of the species in Europe. Significant phenotypic plasticity and among-population genetic variation were found for all measured phenotypic traits. Heat and drought negatively affected fitness in the southern sites, but heavy rainfalls also decreased early survival in middle latitudes. Climate-driven directional selection was found for higher seed mass and earlier emergence time, while the form of selection on seedling growth rates differed among sites and populations. Evidence of adaptive and maladaptive phenotypic plasticity was found for emergence time and early growth rate, respectively. Seed mass, emergence time and early growth rate have an adaptive role in the early stages of P. sylvestris and climate strongly influences the patterns of selection on these fitness-related traits.
Subject: climate adaptation
emergence time
growth rate
intraspecific genetic variation
natural selection
phenotypic plasticity
seed mass
seedling mortality
EARLY SEEDLING GROWTH
TREE MORTALITY
SCOTS PINE
NATURAL-SELECTION
LOCAL ADAPTATION
ECOPHYSIOLOGICAL TRAITS
ESTABLISHMENT SUCCESS
ASSISTED MIGRATION
GENETIC-VARIATION
FROST HARDINESS
1181 Ecology, evolutionary biology
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