Ecological divergence of sibling allopolyploid marsh orchids is associated with species specific plasticity and distinct fungal communities

The Plant Journal, Journal Year: 2025, Volume and Issue: 121(4)

Published: Feb. 1, 2025

SUMMARY Phenotypic plasticity, the dynamic adjustment of traits to environmental variations, is crucial for enabling species exploit broader niches and withstand suboptimal conditions. This adaptability particularly relevant newly formed allopolyploids, which possess redundant gene copies must become established in diverse environments distinct from their parents other relatives. By evaluating expression root mycobiome among two ecologically divergent sibling allopolyploid marsh orchids ( Dactylorhiza majalis D. traunsteineri ) reciprocal transplants at localities where both are native, we aimed understand drivers persistence face interspecific flow. Despite consistent abiotic differences characterising alternative each locality, majority between allopolyploids appears be plastic. Ecologically processes, such as photosynthesis transmembrane transport, include some genes that differentially expressed regardless environment, while others change activity plastically one or other. suggests although plasticity helps define specific ecological range allopolyploid, it also mediates flow them, thereby preventing differentiation. Extending our investigations mycobiome, uncover more fungal communities either when grown environment with nutrient‐poor soils, indicating biotic factors drive distribution orchids. Altogether, results indicate can simultaneously promote diversification homogenisation lineages, influencing establishment recurrently species.

Language: Английский

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Genetically based trait coordination and phenotypic plasticity of growth, gas exchange, allometry, and hydraulics across the distribution range of Pinus pinaster

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Studying intraspecific trait variation across environments is key for understanding how resource-use strategies evolve. It hypothesized that plants from mesic have evolved toward a more acquisitive strategy with high growth potential and phenotypic plasticity, while populations xeric continental climates exhibit conservative slower better physiological performance under drier conditions. We tested this hypothesis through the phenotypical characterization of 14-yr-old Pinus pinaster Aiton trees 20 range-wide growing in two climatically contrasting common gardens. measured traits related to growth, leaf morphology, gas exchange, photochemistry, hydraulics. Consistent our hypothesis, we found oceanic areas exhibited higher rates allocation surface area conditions, along greater plasticity these traits. By contrast, had status, showing exchange photochemical efficiency, but lower sapwood-specific hydraulic conductivity Together, results provide evidence climate drives joint evolution stem their following an acquisitive-conservative axis resource use. Overall, coordination be highly plastic, likely maximize plant environmental

Language: Английский

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Variations in Acorn Characteristics Between Two Mediterranean Quercus Species and Their Hybrids Through Contrasting Environmental Gradients in Spain

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 718 - 718

Published: Feb. 26, 2025

Oaks are characterized by high plasticity and intense interspecific gene flow due to natural hybridization. This generates a wide phenotypic spectrum, which creates taxonomic confusion within the genus. We compared acorn traits across temperature gradient in two types of Mediterranean Quercus (Quercus faginea Lam. Q. pyrenaica Willd.) their hybrids. Genetic groups were identified using amplified fragment length polymorphism (AFLPs) analysis. Acorns sampled from each three genetic used for comparative purposes means 15 morphological characteristics. Eight showed discriminant value among groups. The height tended decrease with decreasing temperatures gradient, whereas width exhibited opposite response. However, fruit allowed discrimination between groups, differences consistent different zones. Both number acorns produced individual size larger pyrenaica. Hybrids intermediate both parent species. Traditionally, persistence parental species absence reproductive barriers has been explained lower fitness Our results, however, do not reveal presence transgressive characteristics hybrids that could justify competitive capacity.

Language: Английский

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Usage of the term provenance in LIS literature: An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Abstract Provenance is the story of how something has come to be. In this paper, we provide a systematic literature review categorize various notions provenance in Information Sciences. The goal paint broader picture multiple uses at play and enhance our understanding importance research practice. Through seven‐step process, investigated 245 articles total, collected through Web Science, arrived six types: as , authenticity performance compliance process discriminator system characterization . Based on article abstracts, further employed BERTopics found top sub‐disciplines LIS that focus efforts, including archival research, digital preservation, linked data, data management. contributions work are two‐fold: (1) many faces provenance; (2) synthesize state‐of‐the‐art information science related fields.

Language: Английский

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Contrasting adaptive trait variation in response to drought in two Mediterranean shrubs

Environmental and Experimental Botany, Journal Year: 2023, Volume and Issue: 208, P. 105253 - 105253

Published: Feb. 4, 2023

Adaptive evolution and phenotypic plasticity are key mechanisms of climate change responses. However, we still lack a detailed understanding the strategies different species use to cope with climatic changes such as increased droughts, particularly for special edaphic requirements limited dispersal gypsum endemics. In this study, assessed genotypic selection, genetic variation in traits potentially related drought response two dominant Mediterranean species, Helianthemum squamatum Centaurea hyssopifolia. We established common garden which 524 plants from 79 maternal families both were grown under contrasting watering treatments. Our results revealed that selection was stronger than well-watered conditions but found adaptive variation. H. squamatum, drought-escape strategy advanced reproductive phenology faster growth rates positively associated fitness dry conditions, most exhibited quantitative contrast, C. hyssopifolia, favored drought-tolerance thicker leaves longer phenologies, all lacked variation, indicating their evolutionary potential may be limited. Most significant trait can evolve independently means these gypsophiles. show endemic vary drought, contributes our responses specialists.

Language: Английский

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Climatic variations along an aridity gradient drive significant trait intraspecific variability in Mediterranean plant species

Journal of Arid Environments, Journal Year: 2023, Volume and Issue: 217, P. 105042 - 105042

Published: July 29, 2023

Drought represents one of the main sources stress for plants in Mediterranean region, and climate change is further escalating this stress. Plants can employ several response strategies to cope with stress, reflected adoption specific Plant Functional Traits (PFTs). Trait-based approaches commonly meet three issues: they may overlook Intraspecific Variability (ITV), could focus on large spatial scales, or few traits. Here we present evidence that it's possible observe ITV morphological anatomical trait syndromes between local populations Phillyrea latifolia, Pistacia lentiscus, Quercus ilex, distributed along an aridity gradient. Thicker, physiologically expensive leaves lower heights found drier sites mainly conform drought-resistance strategies, while spectra from Cistus salviifolius were not vary significantly across sites. Thus, amount observable at a scale varies species. We conclude easily drive significant species, their spectra, among plant are geographically close each other. This highlights importance environmental variability implies different hailing nearby might respond differently change.

Language: Английский

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Constrained trait variation by water availability modulates radial growth in evergreen and deciduous Mediterranean oaks

Agricultural and Forest Meteorology, Journal Year: 2024, Volume and Issue: 346, P. 109884 - 109884

Published: Jan. 6, 2024

Spatial and temporal variation in functional traits allows trees to adjust shifting environmental conditions such as water stress. However, the change of traits, both mean variances, along availability gradients across growing seasons, well their covariation with tree performance, have been rarely assessed. We examined intraspecific trait coexisting evergreen (Quercus ilex ssp. Q. ballota) deciduous faginea Quercus humilis) Mediterranean oaks a wide gradient northeastern Spain during six years. measured leaf area (LA), shoot twig mass (Sm), per (LMA) ratio biomass (Sm:Lm). characterized performance through basal increment (BAI) drought resilience indices. Higher was found within individuals than between populations Within species, we adjustments toward more conservative water-use (low LA Sm high LMA) increasing drier conditions. Intraspecific constrained by availability, particularly on species. In ilex, variance LMA positively covaried annual BAI, whereas LA, Sm:Lm related resistance against severe 2012 oaks. Our results support tradeoff ability tolerate capacity cope unpredictable changes environment increased variation, which may implications face extreme events.

Language: Английский

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Drivers of phenotypic variation and plasticity to drought in populations of a Mediterranean shrub along an environmental gradient

Environmental and Experimental Botany, Journal Year: 2024, Volume and Issue: 228, P. 106011 - 106011

Published: Oct. 18, 2024

Language: Английский

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Drivers of population differentiation in phenotypic plasticity in a temperate conifer: A 27‐year study

Evolutionary Applications, Journal Year: 2022, Volume and Issue: 15(11), P. 1945 - 1962

Published: Oct. 31, 2022

Abstract Phenotypic plasticity is a main mechanism for organisms to cope with changing environments and broaden their ecological range. Plasticity genetically based can evolve under natural selection, such that populations within species show distinct phenotypic responses the environment if evolved different conditions. Understanding how intraspecific variation in arises critical assess potential adaptation ongoing climate change. Theory predicts favored more favorable but variable environments. Yet, many theoretical predictions about benefits, costs, selection on remain untested. To test these predictions, we took advantage of three genetic trials northern Rocky Mountains, USA, which assessed 23 closely located Pinus ponderosa over 27 years. Mean environmental conditions spatial patterns at seed source were characterized six basic parameters. Despite small area origin, there was significant tree growth among populations. We found negative correlation between patch size heterogeneity populations, not total variance. These results exposed high microhabitat have higher trigger grain rather than magnitude heterogeneity. Contrary also positive relationship population summer drought source, indicating act as plasticity. Finally, quantitative variance plasticity, suggesting compensatory adaptive mechanisms lack diversity. improve our understanding microevolutionary drivers process resilience long‐lived change, support decision‐making improvement programs transfer strategies.

Language: Английский

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Intraspecific variation of Quercus ilex L. seed morphophysiological traits in Tunisia reveals a trade-off between seed germination and shoot emergence rates along a thermal gradient

Annals of Forest Science, Journal Year: 2023, Volume and Issue: 80(1)

Published: Feb. 23, 2023

Abstract Key message Quercus ilex populations from cold habitats display a large lag between seed germination and shoot emergence time, favouring avoidance of late frost events. Populations mild show the fastest rates at moderate temperatures, enabling them to synchronize in winter-early spring period rapid seed-to-seedling transition, during favourable rainy period. Context is most abundant representative Mediterranean oak species. Identifying describing intraspecific variation traits necessary characterize niche, elucidate drivers species’ range. Aims In order identify adaptations local environments that may reflect ecological strategies for stress survival, we tested under common optimal conditions whether functional vary, subsp. rotundifolia Lam., along climatic gradients within its distribution range Tunisia. Methods We have explored variations morphological traits, desiccation sensitivity level, different controlled temperature conditions, among 15 Q. sampled throughout Tunisian Results Significant between-populations differences were observed but no relationships could be established with climate sampling sites. contrast, key physiological varied significantly elevation temperature. Specifically, temperatures lowland regions associated higher moisture content, fast (13 °C) germination. Seeds sites displayed low (5 as well greatest time. Conclusion Intraspecific climate. This diversity should considered when evaluating germplasm predicting suitability reforestation assisted migration programs.

Language: Английский

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