Floral phenotypic plasticity as a buffering mechanism in the globeflower–fly mutualism

Hemborg, Åsa M.; Després, Laurence

doi:10.1007/s11258-011-9898-y

Cited by 4 publications

(2 citation statements)

References 37 publications

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“…; Table ). Analogously, Hemborg & Despres () found less plasticity in flower number of high elevation Trollius europaeus populations and suggested that reduced reproductive meristem availability, which could have evolved as a response to adverse climate conditions, might constrain plasticity in high elevation plants.…”

Section: Discussionmentioning

confidence: 99%

Plant population differentiation and climate change: responses of grassland species along an elevational gradient

Frei

Ghazoul

Matter

et al. 2013

Global Change Biology

101

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Mountain ecosystems are particularly susceptible to climate change. Characterizing intraspecific variation of alpine plants along elevational gradients is crucial for estimating their vulnerability to predicted changes. Environmental conditions vary with elevation, which might influence plastic responses and affect selection pressures that lead to local adaptation. Thus, local adaptation and phenotypic plasticity among low and high elevation plant populations in response to climate, soil and other factors associated with elevational gradients might underlie different responses of these populations to climate warming. Using a transplant experiment along an elevational gradient, we investigated reproductive phenology, growth and reproduction of the nutrient-poor grassland species Ranunculus bulbosus, Trifolium montanum and Briza media. Seeds were collected from low and high elevation source populations across the Swiss Alps and grown in nine common gardens at three different elevations with two different soil depths. Despite genetic differentiation in some traits, the results revealed no indication of local adaptation to the elevation of population origin. Reproductive phenology was advanced at lower elevation in low and high elevation populations of all three species. Growth and reproduction of T. montanum and B. media were hardly affected by garden elevation and soil depth. In R. bulbosus, however, growth decreased and reproductive investment increased at higher elevation. Furthermore, soil depth influenced growth and reproduction of low elevation R. bulbosus populations. We found no evidence for local adaptation to elevation of origin and hardly any differences in the responses of low and high elevation populations. However, the consistent advanced reproductive phenology observed in all three species shows that they have the potential to plastically respond to environmental variation. We conclude that populations might not be forced to migrate to higher elevations as a consequence of climate warming, as plasticity will buffer the detrimental effects of climate change in the three investigated nutrient-poor grassland species.

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Section: Discussionmentioning

confidence: 99%

Plant population differentiation and climate change: responses of grassland species along an elevational gradient

Frei

Ghazoul

Matter

et al. 2013

Global Change Biology

101

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“…However, differences between the performance of progeny in the garden and that of their mother plants in the field were much smaller for populations from high elevations and to a lesser degree also for those from high latitudes, indicating that they were less plastic. The reduced plasticity of arctic and alpine populations could be due to reduced genetic diversity but could also be an evolutionary response to adverse climate conditions (Berg et al, 2005; Hemborg and Després, 2011; Mägi et al, 2011). Arctic and alpine populations of A. vulneraria may have a cautious strategy of early cessation of growth with a switch to reproduction even in conditions favorable for growth.…”

Section: Discussionmentioning

confidence: 99%

Clinal variation in quantitative traits but not in evolutionary potential along elevational and latitudinal gradients in the widespread Anthyllis vulneraria

Daco,

Colling,

Matthies

2024

American J of Botany

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PremiseStrong elevational and latitudinal gradients allow the study of genetic differentiation in response to similar environmental changes. However, it is uncertain whether the environmental changes along the two types of gradients result in similar genetically based changes in quantitative traits. Peripheral arctic and alpine populations are thought to have less evolutionary potential than more central populations do.MethodsWe studied quantitative traits of the widespread Anthyllis vulneraria in a common garden. Plants originated from 20 populations along a 2000‐m elevational gradient from the lowlands to the elevational limit of the species in the Alps, and from 20 populations along a 2400‐km latitudinal gradient from the center of the distribution of the species in Central Europe to its northern distributional margin.ResultsMost traits showed similar clinal variations with elevation and latitude of origin, and the magnitude of all measured traits in relation to mean annual temperature was similar. Higher QST values than FST values in several traits indicated diversifying selection, but for others QST was smaller than FST. Genetic diversity of quantitative traits and neutral molecular markers was not correlated. Plasticity in response to favorable conditions declined with elevation and less strongly with latitude of origin, but the evolvability of traits did not.ConclusionsThe clinal variation suggests adaptive differentiation of quantitative traits along the two gradients. The evolutionary potential of peripheral populations is not necessarily reduced, but lower plasticity may threaten their survival under rapidly changing climatic conditions.

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Vanilla insignisAmes. (Orchidaceae): morphological variation of the labellum in Quintana Roo, Mexico

Herrera-Cabrera,

Hernández-Silva,

Delgado-Alvarado

et al. 2023

Plant Genet. Resour.

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The shape of the flower can vary based on the type of pollinator or the environment in which the plant develops. In Vanilla insignis, there are no studies that analyse the shape of the labellum of the flower as has been done in V. planifolia. Therefore, the study aimed to determine the variation in the shape of the labellum of V. insignis through a morphometric analysis in different environmental conditions in the state of Quintana Roo, Mexico. The results showed that there were significant differences in the variables analysed. Principal component analysis and dendrogram analysis reveal that four V. insignis morphotypes were possibly associated with soil water availability conditions because there were significant differences between the variables that define the apical region. In addition, the distribution of the morphotypes corresponded with the presence of humidity regardless of geographical distances such as in the populations of Tenampulco, Puebla and Caobas, Quintana Roo. The presence of these morphotypes allows the development of conservation programmes and genetic improvement of the species of V. insignis and related commercial species.

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Floral phenotypic plasticity as a buffering mechanism in the globeflower–fly mutualism

Cited by 4 publications

References 37 publications

Plant population differentiation and climate change: responses of grassland species along an elevational gradient

Plant population differentiation and climate change: responses of grassland species along an elevational gradient

Clinal variation in quantitative traits but not in evolutionary potential along elevational and latitudinal gradients in the widespread Anthyllis vulneraria

Vanilla insignisAmes. (Orchidaceae): morphological variation of the labellum in Quintana Roo, Mexico

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