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18 results for “Developmental Stability”
Data for: Associations between leaf developmental stability, canalization and phenotypic plasticity in an architectural perspective
<p class="MsoNormal"><span>Associations between developmental stability, canalization and phenotypic plasticity have been predicted, but rarely supported by direct evidence. Architectural analysis may provide a more powerful approach to finding correlations among these mechanisms in plants. T</span><span>o investigate the relationships among the three mechanisms in architectural perspective, w</span><span>e </span><span>subjected plants of </span><em><span>Abutilon theophrasti</span></em><span> to three densities, measured and calculated </span><span>fluctuating asymmetry (FA), coefficients of variation (CV)</span><span> and </span><span>plasticity (PI) of three leaf traits, to analyze the </span><span>correlations among these variables.</span><span> As density increased, mean leaf size, petiole length and angle of most layers and mean leaf FA of some layers decreased (at both stages), CV of petiole angle increased (at day 50), and PI of petiole length and angle across all layers decreased (at day 70); leaf FA and CV of traits generally increased with higher layers at all densities. At both stages, there were more positive correlations between FA and CV at lower vs. high densities; at day 50, little correlation of plasticity with FA or CV was found; at day 70, more positive correlations between FA and PI occurred for response to high vs. low density than for response to medium vs. low density, and more positive correlations between CV and PI occurred at lower vs. high densities. Results suggested that developmental instability, decreased canalization and plasticity can be cooperative and the relationships between decreased canalization and plasticity are more likely to be positive if decreased canalization is due to vibrant growth rather than stressful effects. The relationships of plasticity with developmental instability differed from its relationship with decreased canalization in the way of variation. Decreased canalization should be more beneficial for possible plasticity in the future, while canalization may result from already-expressed plasticity.</span></p>
Figure 1 in Using of fluctuating asymmetry in adult Pelophylax ridibundus (Amphibia: Anura: Ranidae) meristic traits as a method for assessing developmental stability of population and environmental quality of their habitat: industrial area in southern Bulgaria
Figure 1. An indicative map of the sites in southern Bulgaria where P. ridibundus individuals were captured in 2019.
Figure 2 in Using of fluctuating asymmetry in adult Pelophylax ridibundus (Amphibia: Anura: Ranidae) meristic traits as a method for assessing developmental stability of population and environmental quality of their habitat: industrial area in southern Bulgaria
Figure 2. Photos of some asymmetric P. ridibundus individuals from site 1: the Chaya River in southern Bulgaria. Legend: a–d: asymmetric morphological traits on the back of the body and hind limbs of frogs, e–f: asymmetric morphological traits on the fingers of frogs. Trait 1 – number of stripes on the dorsal side of the thigh (femur); trait 2 – number of spots on the dorsal side of the thigh; trait 3 – number of stripes on the dorsal side of the shank (crus); trait 4 – number of spots on the dorsal side of the shank; trait 5 – number of stripes on the foot (pes); trait 6 – number of spots on the foot; trait 7 – number of stripes and spots on the back (dorsum); trait 8 – number of white spots on the ventral side of the second finger of the hind leg; trait 9 – number of white spots on the ventral side of the third finger of the hind leg; trait 10 – number of white spots on the ventral side of the fourth finger of the hind leg.
Data for: Associations between leaf developmental stability, canalization and phenotypic plasticity in an architectural perspective
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Data from: Associations between developmental stability, canalization and phenotypic plasticity in plants with temporally heterogeneous environmental experience
<p>We subjected eight plant species to a first round of alternating inundation and drought vs. constantly moderate water treatments and a second round of water conditions. Fluctuating asymmetry (FA), intra- and inter-individual variations (CV<sub>intra</sub> and CV<sub>inter</sub>), and plasticity in traits were measured and correlations between variables were calculated for each species. Early temporally heterogeneous experience decreased the leaf size of half of the species, but had complex effects on leaf fluctuating asymmetry (FA) and inter-individual variation (CV<sub>inter</sub>) in traits immediately or in late conditions, with little effects on intra-individual variation (CV<sub>intra</sub>). There were several positive correlations between FA and CV<sub>inter</sub>, while there were correlations between CV<sub>inter</sub> and plasticity in early treatments, but negative ones in late treatments.</p>
Quantitative genetics of developmental stability in flower traits of Solanum rostratum
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Data from: Associations between developmental stability, canalization and phenotypic plasticity in plants with temporally heterogeneous environmental experience
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Associations among cotyledon developmental stability, canalization and phenotypic plasticity in response to shading and burial depth in five herbaceous species at early seedling stage
<p class="MsoNormal"><strong><span>Premise of research. </span></strong></p> <p class="MsoNormal"><span>Cotyledons have important functions in early seedling stage and have important effects on later stages, but we know little about the relationships among developmental stability, canalization and phenotypic plasticity in cotyledons. </span></p> <p class="MsoNormal"><strong><span>Methodology. </span></strong></p> <p class="MsoNormal"><span>We conducted </span><span><span>a field</span></span><span> experiment with five herbaceous species, by subjecting them to contrasting light conditions and burial depths and measuring their cotyledon size and fluctuating asymmetry (random deviation from perfect bilateral symmetry, indicating developmental stability or instability), coefficient of variation and plasticity of cotyledon size,</span><span> </span><span>to investigate the relationships among</span><span> </span><span>cotyledon developmental stability, canalization and plasticity in response to shading and deep burial. </span></p> <p class="MsoNormal"><strong><span>Pivotal </span><span><span>r</span></span><span>esults. </span></strong></p> <p class="MsoNormal"><em><span>Pharbitis purpurea</span></em><span>, </span><em><span>Convolvulus arvensis</span></em><span> and </span><em><span>Carpesium</span></em><span> </span><em><span>abrotanoides</span></em><span> had increased cotyledon size in response to shading at both burial depths;</span><em><span> Abutilon theophrasti</span></em><span> showed reduced cotyledon size in response to shading vs. full light at shallow depth, but greater cotyledon size </span><span>in response to </span><span>both shading and deep burial. </span><span>Shading increased cotyledon fluctuating asymmetry of</span><em><span> </span></em><em><span>P</span></em><em><span><span>.</span></span></em><em><span> purpurea</span></em><span> and </span><em><span>C</span></em><em><span><span>.</span></span></em><span> </span><em><span>abrotanoides</span></em><span>, while deep burial decreased it. Cotyledon fluctuating asymmetry had positive correlations with coefficient of variation and plasticity in response to shade in shading, with little correlation between coefficient of variation and plasticity. </span></p> <p class="MsoNormal"><strong><span><span>C</span></span><span>onclusions. </span></strong></p> <p class="MsoNormal"><span>Results suggested</span><span> </span><em><span>A</span></em><em><span><span>.</span></span></em><em><span> theophrasti</span></em><span> </span><span>may have greater tolerance for multiple stresses than the other species,</span><span> and deep burial may improve shade tolerance of cotyledons through moderate level of stress selection</span><span>. Both developmental instability</span><span> and decreased canalization may indicate </span><span><span>the</span></span><span> state of faster growth. </span><span>Developmental instability</span><span> can facilitate more-active response to shading in cotyledon, while the relationship between canalization and plasticity should be more complex. </span></p>
Associations between leaf developmental stability, variability, canalization and phenotypic plasticity in Abutilon theophrasti
<p>Developmental stability, canalization, and phenotypic plasticity are the most common sources of phenotypic variation, yet comparative studies investigating the relationships between these sources, specifically in plants, are lacking. To investigate the relationships among developmental stability or instability, developmental variability, canalization and plasticity in plants, we conducted a field experiment with Abutilon theophrasti, by subjecting plants to three densities under infertile vs. fertile soil conditions. We measured the leaf width (leaf size) and calculated fluctuating asymmetry (FA), coefficient of variation within and among individuals (CVintra and CVinter), and plasticity (PIrel) in leaf size at day 30, 50 and 70 of plant growth, to analyze the correlations among these variables in response to density and soil conditions, at each of or across all growth stages. Results showed increased density led to lower leaf FA, CVintra and PIrel and higher CVinter in fertile soil. A positive correlation between FA and PIrel occurred in infertile soil, while correlations between CVinter and PIrel and between CVinter and CVintra were negative at high density and/or in fertile soil, with non-significant correlations among them in other cases. Results suggested the complexity of responses of developmental instability, variability and canalization in leaf size as well as their relationships, which depend on the strength of stresses. Intense aboveground competition that accelerates the decrease in leaf size (leading to lower plasticity) will be more likely to reduce developmental instability, variability and canalization in leaf size. Increased developmental instability and intra- and inter-individual variability should be advantageous and facilitate adaptive plasticity in less stressful conditions, thus they are more likely to positively correlate with plasticity; whereas developmental stability and canalization with lower developmental variability should be beneficial for stabilizing plant performance in more stressful conditions, where they tend to have more negative correlations with plasticity. </p>
Associations between leaf developmental stability, variability, canalization and phenotypic plasticity in Abutilon theophrasti
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Data from: Effects of environmental disturbance on phenotypic variation: an integrated assessment of canalization, developmental stability, modularity and allometry in lizard head shape
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Associations among cotyledon developmental stability, canalization and phenotypic plasticity in response to shading and burial depth in five herbaceous species at early seedling stage
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Data from: No relationship between canalization and developmental stability in the skull of a natural population of Mastomys natalensis (Rodentia: Muridae)
The aim of the present work was to investigate the relationship between canalization and developmental stability under varying environmental conditions. Three different cohorts of Mastomys natalensis (Rodentia, Muridae), displaying different growth trajectories, were analyzed by means of Geometric morphometrics. A set of 23 landmarks was digitalized on the dorsal skull of 292 specimens from Morogoro (Tanzania). Patterns of among- and within-individual (measured as fluctuating asymmetry) variation were assessed and compared among and within the three groups in order to test for the presence of a common mechanism between canalization and developmental stability. Results showed that there was no congruence between canalization and developmental stability: 1) levels of FA and among-individual variation varied in a discordant fashion, 2) no correspondence between variance-covariance matrix of among- and within individual variation was found, 3) environmental effects were able to alter the covariance structure of among- individual variation living patterns associated with fluctuating asymmetry unaffected. These findings support the view of multiple mechanisms underlying developmental buffering of shape variation.
Data from: A study of canalization and developmental stability in the sternopleural bristle system of Drosophila melanogaster
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Data from: No relationship between canalization and developmental stability in the skull of a natural population of Mastomys natalensis (Rodentia: Muridae)
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Data from: Postnatal dynamics of developmental stability and canalization of lizard head shape under different environmental conditions
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Single-cell RNAseq Reveals Developmental Origins and Ontogenetic Stability of Neurexin Alternative Splicing Profiles
GEO Series GSE121653. Mus musculus. 162 samples. Type: Expression profiling by high throughput sequencing.
Figure 3 in Using of fluctuating asymmetry in adult Pelophylax ridibundus (Amphibia: Anura: Ranidae) meristic traits as a method for assessing developmental stability of population and environmental quality of their habitat: industrial area in southern Bulgaria
Figure 3. Proportion of individuals with respective FAMI values by sexes (a) and by sites (b).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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