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502 results for “natural populations”
Data from: Long distance dispersal and genetic structure of natural populations: an assessment of the inverse isolation hypothesis in peat mosses
It is well accepted that the shape of the dispersal kernel, especially its tail, has a substantial effect on the genetic structure of species. Theory predicts that dispersal by fat-tailed kernels reshuffles genetic material and thus preserves genetic diversity during colonization. Moreover, if efficient long distance dispersal is coupled with random colonization, an inverse isolation effect is predicted to develop in which increasing genetic diversity per colonizer is expected with increasing distance from a genetically variable source. By contrast, increasing isolation leads to decreasing genetic diversity when dispersal is via thin-tailed kernels. Here we use a well-established model group for dispersal biology (peat mosses: genus Sphagnum) with a fat-tailed dispersal kernel, and the natural laboratory of the Stockholm archipelago to study the validity of the inverse isolation hypothesis in spore-dispersed plants in island colonization. Population genetic structure of three species (S. fallax, S. fimbriatum and S. palustre) with contrasting life histories and ploidy levels were investigated on a set of islands using microsatellites. Our data show (φ'st, AMOVA, IBD) that dispersal of the two most abundant species can be well approximated by a random colonization model. We find that genetic diversity per colonizer on islands increases with distance from the mainland for S. fallax and S. fimbriatum. By contrast, S. palustre deviates from this pattern, owing to its restricted distribution in the region affecting its source pool strength. Therefore, the inverse isolation effect appears to hold in natural populations of peat mosses and, likely, in other organisms with small diaspores.
Natural History of Systemic and Nasal Mucosal Immunity After Influenza Vaccination in a Pediatric Population
ClinicalTrials.gov study NCT04963166. IPD Sharing: NO. Countries: 1. Publications: 0.
A National Retrospective Population Based Cohort Study of the Natural History of Ataxia Telangiectasia
ClinicalTrials.gov study NCT04991701. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Mixture modeling of transcript abundance classes in natural populations
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Data from: Contrasting pattern of natural variation in global Drosophila melanogaster populations
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Data from: Long distance dispersal and genetic structure of natural populations: an assessment of the inverse isolation hypothesis in peat mosses
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Data from: Evidence that Egfr contributes to cryptic genetic variation for photoreceptor determination in natural populations of Drosophila melanogaster
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Data from: Footprints of divergent selection in natural populations of Castanopsis fargesii (Fagaceae)
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Data from: Rapid and unpredictable changes of the G-matrix in a natural bird population over 25 years
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Development of gene expression profile for a seasonal variation study in a natural population of Riba-Roja, in the Ebro River, Spain
GEO Series GSE35353. Dreissena polymorpha. 10 samples. Type: Expression profiling by array.
Multiplexed mosaic tumor models reveal natural phenotypic variations in drug response within and between populations [8 cancer cell lines]
GEO Series GSE283141. Homo sapiens. 2 samples. Type: Expression profiling by high throughput sequencing.
A mechanistic basis for genetic assimilation in natural fly populations
GEO Series GSE255258. Drosophila melanogaster. 3 samples. Type: Other.
A mechanistic basis for genetic assimilation in natural fly populations
GEO Series GSE255491. Drosophila melanogaster. 17 samples. Type: Other.
Variation in tissue-specific gene expression among natural populations of Fundulus heteroclitus
GEO Series GSE2293. Fundulus heteroclitus. 108 samples. Type: Expression profiling by array.
FIGURE 3. Govenia utriculata. A. Flowering plant. B. Floral bract, flattened. C. Flower, side view. D. Flower, front view. E in Natural history of the often-misunderstood Govenia utriculata (Orchidaceae): discovery of a Mexican population upsets West Indies endemism
FIGURE 3. Govenia utriculata. A. Flowering plant. B. Floral bract, flattened. C. Flower, side view. D. Flower, front view. E. Labellum and column in natural position, side view. F. Perianth dissection, segments flattened. G. Column, side view. H. Column, front view. I. Column apex with anther removed, showing the pollinia, front view. J. Anther, side view. K. Anther, bottom view. L. Developing capsule. All from Salazar & Octaviano-Landa 10282. Drawn by Rolando Jiménez-Machorro.
Natural variation in photosynthetic traits in a diverse population of Oryza glaberrima
<p>Supplementary data and figures to support the above publication.</p>
Endolymphatic Sac Tumors in a Population of Patients With Von Hippel-Lindau Disease:The Natural History and Pathobiology, and a Prospective Non-Randomized Clinical Trial of Hearing Preservation Surger
ClinicalTrials.gov study NCT00001668. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Transcriptome response to the Deepwater Horizon oil spill identifies novel candidate genes for oil tolerance in natural populations of the foundation plant Spartina alterniflora
GEO Series GSE114635. Sporobolus alterniflorus. 18 samples. Type: Expression profiling by array.
Genomic and physiological responses to strong selective pressure during late organogenesis: how natural Fundulus heteroclitus populations cope with persistent environmental pollution Superfund Site
GEO Series GSE47654. Fundulus heteroclitus. 48 samples. Type: Expression profiling by array.
The expansion of unconventional CD56dim CD16neg cells is a hallmark of the natural killer cell population in COVID-19
GEO Series GSE165461. Homo sapiens. 72 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.