Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
540
datasets available to search
ShareScore release 0.9.0
Dataset results
540 results for “Transgenerational”
Data from: Transcriptomics reveal transgenerational effects in purple sea urchin embryos: adult acclimation to upwelling conditions alters the response of their progeny to differential pCO2 levels
Understanding the mechanisms with which organisms can respond to a rapidly changing ocean is an important research priority in marine sciences, especially in light of recent predictions regarding the pace of ocean change in the coming decades. Transgenerational effects, in which the experience of the parental generation can shape the phenotype of their offspring, may serve as such a mechanism. In this study, adult purple sea urchins, Strongylocentrotus purpuratus, were conditioned to regionally and ecologically relevant pCO2 levels and temperatures representative of upwelling (low temperature, high pCO2) and non-upwelling (average temperature, low pCO2) conditions typical of coastal upwelling regions in the California Current System. Following 4.5 months of conditioning, adults were spawned and offspring were raised under either high or low pCO2 levels, to examine the role of maternal effects. Using RNA-seq and comparative transcriptomics, our results indicate that differential conditioning of the adults had an effect on the gene expression patterns of the progeny during the gastrula stage of early development. For example, maternal conditioning under upwelling conditions intensified the transcriptomic response of the progeny when they were raised under high versus low pCO2 conditions. Additionally, mothers that experienced upwelling conditions produced larger progeny. The overall findings of this study are complex, but do suggest that transgenerational plasticity in situ could act as an important mechanism by which populations might keep pace with rapid environmental change.
Data from: Adaptive responses and transgenerational plasticity of a submerged plant to benthivorous fish disturbance
<p>Benthivorous fish dominance in some subtropical lakes may alter submerged plant growth, reproduction, and progeny germination by changing water-submerged plant-algae interactions. We conducted mesocosm experiments to examine the effects of three densities of benthivorous fish, <em>Misgurnus anguillicaudatus</em>, on the water properties, the growth, asexual reproduction, and the germination of turions of <em>Potamogeton crispus</em> L.</p> <p>The dataset includes water environment characteristics, macrophyte traits, algae traits, and sediment nutrient characteristics. Macrophyte traits include morphological, stoichiometric, turion traits, and germination traits.</p>
Sex-specific transgenerational effects of diet on offspring life history and physiology
<p>Dietary variation in males and females can shape the expression of offspring life histories and physiology. However, the relative contributions of maternal and paternal dietary variation to phenotypic expression of latter generations are currently unknown. We provided male and female <em>Drosophila melanogaster</em> grandparents with<em> </em>diets differing in sucrose concentration prior to reproduction, and similarly subjected their grandoffspring to the same treatments. We then investigated the phenotypic consequences of this dietary variation among the grandsons and granddaughters. We observed transgenerational effects of dietary sucrose, mediated through the grandmaternal lineage, which mimic the direct effects of sucrose on lifespan, with opposing patterns across sexes; low sucrose increased female, but decreased male, lifespan. Dietary mismatching of grandoffspring-grandparent diets increased lifespan and reproductive success, and moderated triglyceride levels of grandoffspring, providing insights into the physiological underpinnings of the complex transgenerational effects on life histories.</p>
Parasite resistance and parasite tolerance: insights into transgenerational immune priming in an invertebrate host
<p>Parasites impose different selection regimes on their hosts, which respond by increasing their resistance and/or tolerance. Parental challenge with parasites can enhance the immune response of their offspring, a phenomenon documented in invertebrates and termed transgenerational immune priming. We exposed two parental generations of the model organism <em>Daphnia magna</em> to the horizontally-transmitted parasitic yeast <em>Metschnikowia bicuspidata</em>, and recorded resistance- and tolerance-related traits in the offspring generation. We hypothesized that parentally-primed offspring will increase either their resistance or their tolerance to the parasite. Our susceptibility assays revealed no impact of parental exposure on offspring resistance. Nonetheless, different fitness-related traits, which are indicative of tolerance, were altered. Specifically, maternal priming increased offspring production and decreased survival. Grandmaternal priming positively affected age at first reproduction and negatively affected brood size at first reproduction. Interestingly, both maternal and grandmaternal priming significantly reduced within-host parasite proliferation. Nevertheless, <em>Daphnia </em>primed for two consecutive generations had no competitive advantage in comparison to unprimed ones, implying additive maternal and grandmaternal effects. Our findings do not support evidence of transgenerational immune priming from bacterial infections in the same host species, thus emphasizing that transgenerational immune responses may not be consistent even within the same host species.</p>
Data of transgenerational effects of thermal stress in embryos of O. maya
<p>To evaluate the transgenerational effect of thermal stress on the cephalopod <em>Octopus maya</em>, this study experimentally tests the morphology, respiratory metabolism, antioxidant mechanisms, and oxidative stress indicators of the embryos incubated at two temperatures (24 and 30°C) produced by females acclimated at 24 (non-stressed) and 30°C (stressed). The data set is organized in such a form that researchers will have embryo morphometric data (eye diameter, arm length, mantle length, yolk length, egg length egg wide, and wet weight of O. maya. Also, there is the oxygen consumption and antioxidant defense enzymes, oxidant damage, and esterase activity of embryos from stressed and nonstressed females. The results demonstrate that, regardless of their incubation temperature, embryos from females acclimated at 30°C are smaller, show more accelerated development, and have higher respiratory rates than those from females acclimated at 24°C. These embryos confirmed a greater oxidative stress degree, as well as an increased amount of soluble carbonylated proteins and catalase activity as the main enzyme during the activation development stage (even the highest in the embryos incubated at 30°C). Finally, a collapse of the antioxidant defense system was observed, measured as lower both CAT activity and GSH concentrations. Additionally, soluble carbonylated proteins reduced and GST activity increased in embryos incubated at 30°C from females maintained at high temperatures in a clear deleterious and transgenerational effect of thermal stress on this octopus species.</p>
Evolutionary consequences of pesticide exposure include transgenerational plasticity and potential terminal investment transgenerational effects
<p>Transgenerational plasticity, the influence of the environment experienced by parents on the phenotype and fitness of subsequent generations, is being increasingly recognised. Human-altered environments, such as those resulting from the increasing use of pesticides, may be major drivers of such cross-generational influences, which in turn may have profound evolutionary and ecological repercussions. Most of these consequences are, however, unknown. Whether transgenerational plasticity elicited by pesticide exposure is common, and the consequences of its potential carry-over effects on fitness and population dynamics remains to be determined. Here we investigate whether exposure of parents to a common pesticide elicits intra-, inter- and transgenerational responses (in F0, F1 and F2 generations) in life-history (fecundity, longevity, and lifetime reproductive success-LRS-), in an insect model system, the seed beetle <em>Callosobruchus</em> <em>maculatus</em>. We also assessed sex-specificity of the effects. We found sex-specific and hormetic intergenerational and transgenerational effects on longevity and lifetime reproductive success, manifested both in the form of maternal and paternal effects. In addition, the transgenerational effects via mothers detected in this study are consistent with a new concept: terminal investment transgenerational effects. Such effects could underlie cross-generational responses to environmental perturbation. Our results indicate that pesticide exposure leads to unanticipated effects on population dynamics and have far-reaching ecological and evolutionary implications.</p>
Transgenerational effects of mycorrhiza are stronger in sexual than in clonal offspring of Fragaria vesca and are partly adaptive (dataset)
Open the record for dataset details and reuse information.
Stronger transgenerational plasticity in clonal compared to sexual offspring of Fragaria vesca: effects of drought, elevated temperature and CO2 conditions
<div>The dataset contains phenotypic data of woodland strawberry (<em>Fragaria vesca</em>) regarding its reproductive strategy, as well as climate and water availability for both parental and offspring generations.</div> <div> </div> <div><u>F1StatGPT.csv</u>: Table containing Ramet Number at Harvest, Fruit Number at Harvest, Ramet Biomass, Offspring Ramet Biomass, and Total Biomass.</div> <div><u>StomataStatGPT.csv:</u> Table containing Number of Stomata per mm² and Stomata Size.</div>
Genetic differences in the temporal and environmental stability of transgenerational environmental effects
<p><span><span><span><span><span><span><span><span><span><span><span>Environments influence the expression of phenotypes of individuals, their progeny, and even their grandprogeny. The duration of environmental effects and how they are modified by subsequent environments are predicted to be targets of natural selection in variable environments. However, little is known about the genetic basis of the temporal persistence of environmental effects and their stability of expression across subsequent environments, or even the extent to which natural genotypes differ in these attributes of environmental effects. We factorially manipulated the thermal environment experienced in three successive generations, to quantify the temporal persistence and environmental stability of temperature effects in contrasting genotypes of <i>Arabidopsis thaliana</i>. We found that genotypes differed in the manner in which environmental effects dissipated across successive generations, the manner in which responses to ancestral environments were stably expressed in present environments, the manner in which ancestral environments altered responses to present environments, and in the manner in which ancestral environments altered fitness in present conditions. Genetic variation exists in nature for these trait-specific environmental responses, suggesting that the temporal persistence and stability of environmental effects in variable environments have the potential to evolve in response to natural selection imposed by different environments and sequences of environments.</span></span></span></span></span></span></span></span></span></span></span></p>
Within-generation and transgenerational social plasticity interact during rapid adaptive evolution
<p>The effects of within-generation plasticity versus transgenerational plasticity on trait expression are poorly understood, but important for evaluating plasticity's evolutionary consequences. We tested how genetics, within-generation plasticity, and transgenerational plasticity jointly shape traits influencing rapid evolution in the field cricket <em>Teleogryllus oceanicus</em>. In Hawaiian populations attacked by acoustically-orienting parasitoid flies, a protective, X-linked variant ("<em>flatwing</em>") eliminates male acoustic sexual signals. Silent males rapidly spread to fixation, dramatically changing the acoustic environment. First, we found evidence supporting <em>flatwing</em>-associated pleiotropy in juveniles: pure-breeding <em>flatwing</em> males and females exhibit greater locomotion than those with <em>normal-wing</em> genotypes. Second, within-generation plasticity caused homozygous-<em>flatwing</em> females developing in silence, which mimics all-<em>flatwing</em> populations, to attain lower adult body condition and reproductive investment than those experimentally exposed to song. Third, maternal song exposure caused transgenerational plasticity in offspring, affecting adult, but not juvenile, size, condition, and reproductive investment. This contrasted with behavioral traits, which were only influenced by within-generation plasticity. Fourth, we matched and mismatched maternal and offspring social environments and found that transgenerational plasticity sometimes interacted with within-generation plasticity and sometimes opposed it. Our findings stress the importance of evaluating the plasticity of different traits and stages across generations when evaluating their fitness consequences and role in adaptation.</p>
Exploring links between climatic predictability and the evolution of within- and transgenerational plasticity
<p>In variable environments, phenotypic plasticity can increase fitness by providing tight environment-phenotype matching. However, adaptive plasticity is expected to evolve only when the future selective environment can be predicted based on the prevailing conditions. That is, the juvenile environment should be predictive of the adult environment (within-generation plasticity) or the parental environment should be predictive of the offspring environment (transgenerational plasticity). Moreover, environmental predictability can also shape transient responses such as stress responses in an adaptive direction. Here, we test links between environmental predictability and the evolution of adaptive plasticity by combining time series analyses and a common garden experiment using temperature as a stressor in a temperate butterfly (Melitaea cinxia). Time series analyses revealed that across-season fluctuations in temperature over 48 years are overall predictable. However, within the growing season, temperature fluctuations showed high heterogeneity across years with low autocorrelations and the timing of temperature peaks was asynchronous. Most life-history traits showed strong within-generation plasticity for temperature and traits such as body size and growth rate broke the temperature-size rule. Evidence for transgenerational plasticity, however, was weak and detected for only two traits each in an adaptive and non-adaptive direction. We suggest that the low predictability of temperature fluctuations within the growing season likely disfavours the evolution of adaptive transgenerational plasticity but instead favours strong within-generation plasticity.</p>
Transgenerational coexistence history attenuates negative direct interactions and strengthens facilitation
<p>Data set for the study <strong>Transgenerational coexistence history attenuates negative direct interactions and strengthens facilitation</strong></p>
Transgenerational phenotypic plasticity of diapause induction and related fitness cost in a commercial strain of the parasitoid Aphidius ervi Haliday
<p>Dataset.</p> <p>Diapause is an adaptation that insects have evolved to synchronize their life cycle with that of seasonal climatic changes and resources availability. However, cues for its induction are not always clear and, in some cases, a maternal effect may be involved. At the population level, just a part of the individuals may exhibit diapause with important consequences in terms of winter survival. Moreover, clear indicators of diapause state are difficult to identify. Diapause induction was thus investigated in the aphid parasitoid species Aphidius ervi Haliday (Hymenoptera: Braconidae) developing in the aphid Sitobion avenae (Hemiptera: Aphididae) at four crossed photothermal regimes (16 °C and 8 °C, 16:8 h L:D and 8:16 h L:D), and during 2 successive generations. We analyzed the reliability of changes in mummy color to assess for the diapausing state compared to dissections, and we measured parasitoid morphological and physiological traits. We observed that the proportion of dark brown mummies increased after one generation under low photothermal regime compared to other regimes. No diapause was recorded at 16 °C, 16:8 h L:D, while we observed 16.2% and 67.5% diapause incidence at 8 °C, 8:16 h L:D, at 1st and 2nd generation, respectively. Diapause induction is thus increased by short day-length conditions and low temperatures as well as by maternal effects. All parasitoid life-history traits (weight, size, fat content, water content, egg-load, and longevity) were affected by the photothermal regime and/or the generation. These results raise new questions on the environmental thresholds needed to induce diapause and on survival and adaptation potential of commercially available parasitoid strains in different environments.</p>
Data for: Sex-specific transgenerational plasticity: Developmental temperatures of mothers and fathers have different effects on sons and daughters
<p>Each parent can influence offspring phenotypes via provisioning of the zygote or sex-specific DNA methylation. Transgenerational plasticity may therefore depend on environmental conditions experienced by each parent. We tested this hypothesis by conducting a fully factorial experiment across three generations of guppies (<em>Poecilia reticulata</em>), determining the effects of warm (28°C) and cold (21°C) thermal backgrounds of mothers and fathers on mass and length, and thermal performance (sustained [Ucrit] and sprint swimming speeds, citrate synthase and lactate dehydrogenase activities; 18, 24, 28, 32 and 36°C test temperatures) of sons and daughters. Offspring sex was significant for all traits except for sprint speed. Warmer mothers produced sons and daughters with reduced mass and length, and warmer fathers produced shorter sons. U<sub>crit</sub> of male offspring was greatest when both parents were raised at 28°C, and warmer fathers produced daughters with greater U<sub>crit</sub>. Similarly, warmer fathers produced sons and daughters with greater metabolic capacities. We show that thermal variation experienced by parents can modify offspring phenotypes, and that predicting the impacts of environmental change on populations would require knowledge of the thermal background of each mothers and fathers, particularly where sexes are spatially segregated.</p>
Within-generation and transgenerational social plasticity interact during rapid adaptive evolution
Open the record for dataset details and reuse information.
EBAX-1/ZSWIM8 destabilizes miRNAs resulting in transgenerational inheritance of a predatory trait
Open the record for dataset details and reuse information.
Endocrine disruptors cause multigenerational and transgenerational epigenetic changes in fish exposed during early life
Open the record for dataset details and reuse information.
Data from: Transgenerational effects in an ecological context: conditioning of adult sea urchins to upwelling conditions alters maternal provisioning and progeny phenotype
Open the record for dataset details and reuse information.
The transgenerational physiological and molecular data of Oryzias melastigma under seawater acidification stress
Open the record for dataset details and reuse information.
Data for: Parent-specific transgenerational immune priming enhances offspring defense – unless heat stress negates it all
Open the record for dataset details and reuse information.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.