Within and between population phenotypic variation in growth vigor and sensitivity to drought stress in five temperate tree species

Fririon, Victor; Davi, Hendrik; Oddou‐Muratorio, Sylvie; Lebourgeois, François; Lefèvre, François

doi:10.1016/j.foreco.2022.120754

Cited by 6 publications

(5 citation statements)

References 87 publications

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“…Soil provides nutrients and the matrix for plants to grow and develop. Other studies have shown that the physicochemical properties of soil affect plant variability [54][55][56]. In the present study, we found that most L. cubeba phenotypes were significantly correlated with the geographic features of the sampling sites.…”

Section: Environmental Factors Affecting Fruit and Leaf Characteristicssupporting

confidence: 72%

Main Habitat Factors Driving the Phenotypic Diversity of Litsea cubeba in China

Liao,

Ning,

Yang

et al. 2023

Plants

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Litsea cubeba (Lour.) Pers. is an important woody spice tree in southern China, and its fruit is a rich source of valuable essential oil. We surveyed and sampled L. cubeba germplasm resources from 36 provenances in nine Chinese provinces, and detected rich phenotypic diversity. The survey results showed that plants of SC-KJ, SC-HJ, and SC-LS provenance presented higher leaf area (LA); YN-SM and YN-XC plants had larger thousand-grain fresh weight (TFW); and HN-DX plants had the highest essential oil content (EOC). To explain the large differences in the phenotypes of L. cubeba among different habitats, we used Pearson’s correlation analysis, multiple stepwise regression path analysis, and redundancy analysis to evaluate the phenotypic diversity of L. cubeba. It was found that compared to other traits, leaf and fruit traits had more significant geographical distributions, and that leaf phenotypes were correlated to fruit phenotypes. The results showed that elevation, latitude, longitude, total soil porosity (SP), soil bulk density (SBD), and average annual rainfall (AAR, mm) contributed significantly to the phenotypic diversity of L. cubeba. Geographical factors explained a higher percentage of variation in phenotypic diversity than did soil factors and climate factors. Plants of SC-KJ and HN-DX provenances could be important resources for domestication and breeding to develop new high-yielding varieties of this woody aromatic plant. This study describes significant phenotypic differences in L. cubeba related to adaptation to different environments, and provides a theoretical basis for the development of a breeding strategy and for optimizing L. cubeba cultivation.

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Section: Environmental Factors Affecting Fruit and Leaf Characteristicssupporting

confidence: 72%

Main Habitat Factors Driving the Phenotypic Diversity of Litsea cubeba in China

Liao,

Ning,

Yang

et al. 2023

Plants

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“…Various patterns or processes not included in the model might reduce the intensity of selection on vigor compared with these simulations. For instance, environmental constraint limiting the phenotypic expression of vigor, within‐stand heterogeneity of disturbance regime, or phenotypic trade‐off between vigor and sensitivity to stress would reduce the correlation between vigor and tree size, thus reducing the intensity of indirect selection on vigor (Fririon et al., 2023). Resource allocation trade‐off between growth and reproductive functions (Wardlaw, 1990) or life history trade‐off between growth and longevity (Roskilly et al., 2019) would reduce the synergy of viability selection and fecundity selection on vigor.…”

Section: Discussionmentioning

confidence: 99%

“…We considered two cases of initial population: a reference with no phenotypic variation in vigor, i.e., no QTL effects and no environmental variance, and a panmictic population with genetic and environmental variation. In the second case, we fixed the additive genetic variance at VA = 0.0042 with a null “inter‐step” component of the environmental variance, which corresponds to the average within‐population variance estimated in 22 populations of five tree species (Fririon et al., 2023), and narrow sense heritability at h 2 = 0.3, which is usually found for growth‐related traits (Alberto et al., 2013; Cornelius, 1994). It is worth noting that, even in the case without phenotypic variation in vigor, background inter‐individual variation of tree size arises from the growth process, depending on the initial tree sizes and local growth and competition processes.…”

Section: Methodsmentioning

confidence: 99%

A demo‐genetic model shows how silviculture reduces natural density‐dependent selection in tree populations

Godineau,

Fririon,

Beudez

et al. 2023

Evolutionary Applications

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Biological production systems and conservation programs benefit from and should care for evolutionary processes. Developing evolution‐oriented strategies requires knowledge of the evolutionary consequences of management across timescales. Here, we used an individual‐based demo‐genetic modelling approach to study the interactions and feedback between tree thinning, genetic evolution, and forest stand dynamics. The model combines processes that jointly drive survival and mating success—tree growth, competition and regeneration—with genetic variation of quantitative traits related to these processes. In various management and disturbance scenarios, the evolutionary rates predicted by the coupled demo‐genetic model for a growth‐related trait, vigor, fit within the range of empirical estimates found in the literature for wild plant and animal populations. We used this model to simulate non‐selective silviculture and disturbance scenarios over four generations of trees. We characterized and quantified the effect of thinning frequencies and intensities and length of the management cycle on viability selection driven by competition and fecundity selection. The thinning regimes had a drastic long‐term effect on the evolutionary rate of vigor over generations, potentially reaching 84% reduction, depending on management intensity, cycle length and disturbance regime. The reduction of genetic variance by viability selection within each generation was driven by changes in genotypic frequencies rather than by gene diversity, resulting in low‐long‐term erosion of the variance across generations, despite short‐term fluctuations within generations. The comparison among silviculture and disturbance scenarios was qualitatively robust to assumptions on the genetic architecture of the trait. Thus, the evolutionary consequences of management result from the interference between human interventions and natural evolutionary processes. Non‐selective thinning, as considered here, reduces the intensity of natural selection, while selective thinning (on tree size or other criteria) might reduce or reinforce it depending on the forester's tree choice and thinning intensity.

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“…Despite a large body of literature from forest inventories (Mina et al, 2018;Etzold et al, 2019;Abegg et al, 2020;Del Río et al, 2021), provenance studies (Sáenz-Romero et al, 2017), niche modeling (De Rigo et al, 2016), dendroecological studies (Bottero et al, 2021) and experiments (Frank et al, 2017;Fririon et al, 2023), there is still considerable uncertainty regarding the factors that determine the survival, vitality and growth of tree species and provenances under climate change and assisted migration. For over two centuries, scientists have conducted common garden (CG) experiments, also known as experimental plantations, to study the performance of trees from different genetic and/or geographic origins under identical environmental conditions (Langlet, 1971).…”

Section: Introductionmentioning

confidence: 99%

The Swiss common garden network: testing assisted migration of tree species in Europe

Streit,

Brang,

Frei

2024

Front. For. Glob. Change

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A warmer climate with drier summers will affect the suitability of tree species in their current range in most of Europe. To preserve ecosystem services in the future, many European countries are looking for tree species adapted to the expected future climate and are setting up trials to test them in different environments. In collaboration with forest practitioners and federal and regional authorities, we have established a network of 57 common gardens across large environmental gradients in Switzerland. Over a period of 30 to 50 years, the vitality, growth and survival of 18 tree species from 117 seed sources will be monitored to develop tree species recommendations for forest managers. In this article, we outline the considerations, challenges and trade-offs involved in designing this experiment, as well as the participatory process with a variety of stakeholders, from local foresters to the Federal Office for the Environment. Further, we list experiments testing multiple species on multiple sites in Europe and compare experimental designs, tree species and environmental gradients. The Swiss common garden network complements other European experiments and broadens the potential network by extending the covered environmental gradients to colder and moister conditions. Such targeted assisted migration trials are key to promoting tree species that can cope with the future climate and can help us to foster forest ecosystems that can adapt to rapidly changing climates.

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Within and between population phenotypic variation in growth vigor and sensitivity to drought stress in five temperate tree species

Cited by 6 publications

References 87 publications

Main Habitat Factors Driving the Phenotypic Diversity of Litsea cubeba in China

Main Habitat Factors Driving the Phenotypic Diversity of Litsea cubeba in China

A demo‐genetic model shows how silviculture reduces natural density‐dependent selection in tree populations

The Swiss common garden network: testing assisted migration of tree species in Europe

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