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49 results for “environmental cues”
Environmental cues for dispersal in a filamentous fungus in simulated islands
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Data for: The interplay of environmental cues and wood density in the vegetative and reproductive phenology of seasonally dry tropical forest trees
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Data from: Symbiont-specific responses to environmental cues in a threesome lichen symbiosis
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Data from: Genomic loci involved in sensing environmental cues and metabolism affect seasonal coat shedding in Bos taurus and Bos indicus cattle
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Multiple paths to cold tolerance: the role of environmental cues, morphological traits and the circadian clock gene vrille
<p><strong>Background</strong>: Tracing the association between insect cold tolerance and latitudinally and locally varying environmental conditions, as well as key morphological traits and molecular mechanisms, is essential for understanding the processes involved in adaptation. We explored these issues in two closely-related species, Drosophila montana and Drosophila flavomontana, originating from diverse climatic locations across several latitudes on the coastal and mountainous regions of North America. We also investigated the association between sequence variation in one of the key circadian clock genes, vrille, and cold tolerance in both species. Finally, we studied the impact of vrille on fly cold tolerance and cold acclimation ability by silencing it with RNA interference in D. montana.</p> <p><strong>Results</strong>: We performed a principal component analysis (PCA) on variables representing bioclimatic conditions on the study sites and used latitude as a proxy of photoperiod. PC1 separated the mountainous continental sites from the coastal ones based on temperature variability and precipitation, while PC2 arranged the sites based on summer and annual mean temperatures. Cold tolerance tests showed D. montana to be more cold-tolerant than D. flavomontana and chill coma resistance (CT<sub>min</sub>) of this species showed an association with PC2. Chill coma recovery time (CCRT) of both species improved towards northern latitudes, and in D. flavomontana this trait was also associated with PC1. D. flavomontana flies were darkest in the coast and in the northern mountainous populations, but coloration showed no linkage with cold tolerance. Body size decreased towards cold environments in both species, but only within D. montana populations largest flies showed fastest recovery from cold. Finally, both the sequence analysis and RNAi study on vrille suggested this gene to play an essential role in D. montana cold resistance and acclimation, but not in recovery time.</p> <p><strong>Conclusions</strong>: Our study demonstrates the complexity of insect cold tolerance and emphasizes the need to trace its association with multiple environmental variables and morphological traits to identify potential agents of natural selection. It also shows that a circadian clock gene vrille is essential both for short- and long-term cold acclimation, potentially elucidating the connection between circadian clock system and cold tolerance.</p> <p> </p>
Figure 1 in The effects of environmental cues on chorusing onset in a tropical frog assemblage
Figure 1. Ambient light level at first call* by tropical frog species, Gamboa, Panama. Groupings A, B, C are based on results from Tukey's HSD test with similarly behaving species grouped together. Box plots represent quartile ranges for each species. *CF1 refers to onset of Craugaster fitzingeri, CF0 refers to cessation of calling by C. fitzingeri. DE – Dendropsophus ebraccatus, DD – Diasporus diastema, SB – S. boulengeri, DM – Dendropsophus microcephalus, RA – R. alata, BR – B. rosenbergi, PT – P. taeniatus, AC – Agalychnis callidryas.
Nudging Nutrition With Monetary Incentives Environmental Cues
ClinicalTrials.gov study NCT02461108. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Multiple paths to cold tolerance: the role of environmental cues, morphological traits and the circadian clock gene vrille
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Data from: Controlled out-of-season spawning of reef-forming corals using offset environmental cues
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Figure 7 in Environmental cues affecting horseweed (ConyzO cOnOdensis) growth types and their sensitivity to glyphosate
Figure 7. Biomass of upright and rosette Conyza canadensis plants of the ISB-18 population in response to applications of glyphosate.
Data from: Light sensing by opsins and fungal ecology: NOP-1 modulates entry into sexual reproduction in response to environmental cues
Understanding the genetic basis of the switch from asexual to sexual lifestyles in response to sometimes rapid environmental changes is one of the major challenges in fungal ecology. Light appears to play a critical role in the asexual–sexual switch—but fungal genomes harbour diverse light sensors. Fungal opsins are homologous to bacterial green-light-sensory rhodopsins, and their organismal functions in fungi have not been well understood. Three of these opsin-like proteins were widely distributed across fungal genomes, but homologs of the Fusarium opsin-like protein CarO were present only in plant-associated fungi. Key amino acids, including potential retinal binding sites, functionally diverged on the phylogeny of opsins. This diversification of opsin-like proteins could be correlated with life history-associated differences among fungi in their expression and function during morphological development. In Neurospora crassa and related species, knockout of the opsin NOP-1 led to a phenotype in the regulation of the asexual–sexual switch, modulating response to both light and oxygen conditions. Sexual development commenced early in ∆nop-1 strains cultured in unsealed plates under constant blue and white light. Furthermore, comparative transcriptomics showed that the expression of nop-1 is light-dependent and that the ∆nop-1 strain abundantly expresses genes involved in oxidative stress response, genes enriched in NAD/NADP binding sites, genes with functions in proton transmembrane movement and catalase activity, and genes involved in the homeostasis of protons. Based on these observations, we contend that light and oxidative stress regulate the switch via light-responsive and ROS pathways in model fungus N. crassa and other fungi.
Data of publications on environmental reproductive cues and reproductive phenological shifts
<p><span>Males and females often desynchronise their </span><span>mating</span><span> activity during the breeding season (intersexual phenological asynchrony). This suggests that the two sexes differentially use environmental cues to initiate seasonal reproduction, and climate change may cause phenological shifts in a sex-specific manner, subsequently altering frequency distribution of mating attempts over time and influencing the emergence timing and recruitment success of juveniles. In this article, we tested these hypotheses through literature reviews and theoretical modelling. We found that the sex specificity of environmental cues and phenological shifts </span><span>remain</span><span> poorly understood in most sexually reproducing animal taxa because of sex-specific publication bias and data limitations. Meanwhile, our theoretical model predicted that the ecological consequences of phenological shifts are sexually asymmetric, with earlier mating onset of males having generally greater negative effects on population growth than that of females. We therefore suggest that further research is necessary to collect and incorporate sex-specific information on seasonal reproduction into the theory of phenological mismatch, for which previous work has mostly focused on interspecific trophic asynchrony. We also outline a future research agenda to better understand the consequences of sex-specific phenological shifts on seasonal population dynamics and long-term persistence of species.</span></p>
Beyond busy workers: Exploring the sensitivity of inactive ants to environmental cues
<p>Dataset corresponding to the results displayed in the article "Beyond the busy workers: exploring the sensitivity of inactive ants to environmental cues"</p>
Data from: Light sensing by opsins and fungal ecology: NOP-1 modulates entry into sexual reproduction in response to environmental cues
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Data from: Multimodal cues improve prey localization under complex environmental conditions
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Data of publications on environmental reproductive cues and reproductive phenological shifts
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Data from: Offspring development and life-history variation in a water flea depends upon clone-specific integration of genetic, non-genetic and environmental cues
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AHR-TFAP2A regulates epidermal differentiation in response to environmental cues
GEO Series GSE226047. Homo sapiens. 22 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Disc-Derived Induced Pluripotent Stem Cells and Environmental Cues for Nucleus Pulposus Regeneration
GEO Series GSE273124. Homo sapiens. 12 samples. Type: Expression profiling by high throughput sequencing.
The Ets-family transcription factors PU.1 and SpiB are redundantly required by mature B cells to sense and respond to environmental cues
GEO Series GSE90094. Mus musculus. 24 samples. Type: Expression profiling by high throughput sequencing.
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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.