scholarly journals Genetic signatures of divergent selection in European beech ( Fagus sylvatica L .) are associated with the variation in temperature and precipitation across its distribution range

2021 ◽  
Author(s):  
D. Postolache ◽  
S. Oddou‐Muratorio ◽  
E. Vajana ◽  
F. Bagnoli ◽  
E. Guichoux ◽  
...  
Keyword(s):  
Fagus Sylvatica ◽  
European Beech ◽  
Divergent Selection ◽  
Distribution Range ◽  
Temperature And Precipitation ◽  
Fagus Sylvatica L ◽  
Genetic Signatures

scholarly journals Genetic signatures of divergent selection in European beech (Fagus sylvatica L.) are associated with the variation in temperature and precipitation across its distribution range

2021 ◽  
Author(s):  
Dragos Postolache ◽  
Sylvie ODDOU-MURATORIO ◽  
Elia Vajana ◽  
Francesca Bagnoli ◽  
Erwann Guichoux ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Gene Flow ◽  
Genetic Structure ◽  
Fagus Sylvatica ◽  
European Beech ◽  
Divergent Selection ◽  
Forest Trees ◽  
Temperature And Precipitation ◽  
Precipitation Regimes ◽  
Fagus Sylvatica L

High genetic variation and extensive gene flow may help forest trees with adapting to ongoing climate change, yet the genetic bases underlying their adaptive potential remain largely unknown. We investigated range-wide patterns of potentially adaptive genetic variation in 64 populations of European beech (Fagus sylvatica L.) using 270 SNPs from 139 candidate genes involved either in phenology or in stress responses. We inferred neutral genetic structure and processes (drift and gene flow) and performed differentiation outlier analyses and gene-environment association (GEA) analyses to detect signatures of divergent selection. Beech range-wide genetic structure was consistent with the species previously identified postglacial expansion scenario and recolonization routes. Populations showed high diversity and low differentiation along the major expansion routes. A total of 52 loci were found to be putatively under selection and 15 of them turned up in multiple GEA analyses. Temperature and precipitation related variables were equally represented in significant genotype-climate associations. Signatures of divergent selection were detected in the same proportion for stress response and phenology-related genes. The range-wide adaptive genetic structure of beech appears highly integrated, suggesting a balanced contribution of phenology and stress-related genes to local adaptation, and of temperature and precipitation regimes to genetic clines. Our results imply a best-case scenario for the maintenance of high genetic diversity during range shifts in beech (and putatively other forest trees) with a combination of gene flow maintaining within-population neutral diversity and selection maintaining between-population adaptive differentiation.

scholarly journals How Does Radial Growth of Water-Stressed Populations of European Beech (Fagus sylvatica L.) Trees Vary under Multiple Drought Events?

Forests ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 129
Author(s):  
Tamalika Chakraborty ◽  
Albert Reif ◽  
Andreas Matzarakis ◽  
Somidh Saha
Keyword(s):  
Soil Water ◽  
Fagus Sylvatica ◽  
Tree Growth ◽  
Radial Growth ◽  
Basal Area ◽  
European Beech ◽  
Canopy Openness ◽  
Fagus Sylvatica L ◽  
The Impact ◽  
Neighborhood Competition

European beech (Fagus sylvatica L.) trees are becoming vulnerable to drought, with a warming climate. Existing studies disagree on how radial growth varies in European beech in response to droughts. We aimed to find the impact of multiple droughts on beech trees’ annual radial growth at their ecological drought limit created by soil water availability in the forest. Besides, we quantified the influence of competition and canopy openness on the mean basal area growth of beech trees. We carried out this study in five near-natural temperate forests in three localities of Germany and Switzerland. We quantified available soil water storage capacity (AWC) in plots laid in the transition zone from oak to beech dominated forests. The plots were classified as ‘dry’ (AWC < 60 mL) and ‘less-dry’ (AWC > 60 mL). We performed dendroecological analyses starting from 1951 in continuous and discontinuous series to study the influence of climatic drought (i.e., precipitation-potential evapotranspiration) on the radial growth of beech trees in dry and less-dry plots. We used observed values for this analysis and did not use interpolated values from interpolated historical records in this study. We selected six drought events to study the resistance, recovery, and resilience of beech trees to drought at a discontinuous level. The radial growth was significantly higher in less-dry plots than dry plots. The increase in drought had reduced tree growth. Frequent climatic drought events resulted in more significant correlations, hence, increased the dependency of tree growth on AWC. We showed that the recovery and resilience to climatic drought were higher in trees in less-dry plots than dry plots, but it was the opposite for resistance. The resistance, recovery, and resilience of the trees were heterogeneous between the events of drought. Mean growth of beech trees (basal area increment) were negatively impacted by neighborhood competition and positively influenced by canopy openness. We emphasized that beech trees growing on soil with low AWC are at higher risk of growth decline. We concluded that changes in soil water conditions even at the microsite level could influence beech trees’ growth in their drought limit under the changing climate. Along with drought, neighborhood competition and lack of light can also reduce beech trees’ growth. This study will enrich the state of knowledge about the ongoing debate on the vulnerability of beech trees to drought in Europe.

scholarly journals Potential Elevation Shift of the European Beech Stands (Fagus sylvatica L.) in Serbia

2019 ◽  
Vol 10 ◽  
Author(s):  
Lazar Pavlović ◽  
Dejan Stojanović ◽  
Emina Mladenović ◽  
Milena Lakićević ◽  
Saša Orlović
Keyword(s):  
Fagus Sylvatica ◽  
European Beech ◽  
Fagus Sylvatica L

scholarly journals Does low soil base saturation affect fine root properties of European beech (Fagus sylvatica L.)?

2007 ◽  
Vol 298 (1-2) ◽  
pp. 69-79 ◽  
Author(s):  
Anika K. Richter ◽  
Lorenz Walthert ◽  
Emmanuel Frossard ◽  
Ivano Brunner
Keyword(s):  
Fagus Sylvatica ◽  
Fine Root ◽  
European Beech ◽  
Base Saturation ◽  
Soil Base ◽  
Fagus Sylvatica L ◽  
Root Properties

Time shifts in height and diameter growth allocation in understory European beech (Fagus sylvatica L.) following canopy release

Trees ◽  
2018 ◽  
Vol 33 (2) ◽  
pp. 333-344 ◽  
Author(s):  
Estelle Noyer ◽  
François Ningre ◽  
Jana Dlouhá ◽  
Mériem Fournier ◽  
Catherine Collet
Keyword(s):  
Fagus Sylvatica ◽  
European Beech ◽  
Diameter Growth ◽  
Growth Allocation ◽  
Fagus Sylvatica L
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