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2,848 results for “sequence data”
Sequencing data for: Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge
<p>Rapid evolution may play an important role in the range expansion of invasive species and modify forecasts of invasion, which are the backbone of land management strategies. However, losses of genetic variation associated with colonization bottlenecks may constrain trait and niche divergence at leading range edges, thereby impacting management decisions that anticipate future range expansion. The spatial and temporal scales over which adaptation contributes to invasion dynamics remain unresolved. We leveraged detailed records of the ~130-year invasion history of the invasive polyploid plant, leafy spurge (<em>Euphorbia</em> <em>virgata</em>), across ~500km in Minnesota, U.S.A. We examined the consequences of range expansion for population genomic diversity, niche breadth, and the evolution of germination behavior. Using genotyping-by-sequencing, we found some population structure in the range core, where introduction occurred, but panmixia among all other populations. Range expansion was accompanied by only modest losses in sequence diversity, with small, isolated populations at the leading edge harboring similar levels of diversity to those in the range core. The climatic niche expanded during most of the range expansion, and the niche of the range core was largely non-overlapping with the invasion front. Ecological niche models indicated that mean temperature of the warmest quarter was the strongest determinant of habitat suitability and that populations at the leading edge had the lowest habitat suitability. Guided by these findings, we tested for rapid evolution in germination behavior over the time course of range expansion using a common garden experiment and temperature manipulations. Germination behavior diverged from early to late phases of the invasion, with populations from later phases having higher dormancy at lower temperatures. Our results suggest that trait evolution may have contributed to niche expansion during invasion and that distribution models, which inform future management planning, may underestimate invasion potential without accounting for evolution.</p>
Phantom measurement data for 'Myelin water imaging at 0.55 T using a multi-gradient-echo sequence'
<p>This dataset contains the phantom mGRE measurement data used in the submitted article Schäper et al. 'Myelin water imaging at 0.55 T using a multi-gradient-echo sequence'.<br> The acquisitions were done with a 0.55 T MRI system (Magnetom Free.Max; Siemens Healthcare, Erlangen, Germany) using a 12 channel head coil and a 3 T MRI system (Magnetom Prisma; Siemens Healthcare, Erlangen, Germany) using a 20 channel head coil. For further measurement details, please refer to the mentioned original article.</p> <p> </p>
HLA class I Sanger sequences data of Honduras HIV cohort
<p>HLA polymorphisms represent the strongest genetic modifier of HIV disease progression. Diverse HLA distribution can lead to distinct HIV control landscapes at the population level. We aimed to describe HLA allele and haplotype frequencies (linkage disequilibrium, LD), CCR5-Δ32 frequency and the impact of these variants on HIV disease outcome. HLA class I (cI) loci were typed at 4-digit resolution, and CCR5 variants were determined in 402 HIV clade B-infected, ART-naïve individuals from Honduras. HLA LD were assessed using Fisher's exact test. Using univariable and multivariable analyses we evaluated HLA associations with HIV pVL and CD4 counts. We did not find any effect on HIV control between CCR5 genotypes. Previously defined HLA associations were found: <em>B*57:01/03</em>, <em>B*42:01</em>, <em>A*25:01</em> and <em>C*12:03</em> (protective), and <em>B*53:01</em> and <em>A*68:01</em> (risk). Being consistent with our previous research in a Mesoamerican HIV cohort, Amerindian <em>B*35:12</em> was associated to poor HIV control. Other HLA-HIV associations not previously described were <em>C*03:04</em> and <em>B*08:01</em> that were associated with higher pVL. Overall, this first report highlights the immunogenetic uniqueness admixture of the Honduras population that express Amerindian, Caucasian and African HLA subtypes. These findings not only support this cohort as ideal for identifying HLA correlates of HIV control but also may improve future research regarding allotransplantation and disease association.</p>
HG002 data for Profiling Chromatin Accessibility in Humans Using Adenine Methylation and Long-Read Sequencing
<p>This dataset includes 6mA frequency data for the HG002 native DNA (untreated) sample sequenced on nanopore r9.4.1.</p>
NA12878 and MCF7 data for Profiling Chromatin Accessibility in Humans Using Adenine Methylation and Long-Read Sequencing
<p>This dataset includes 5mC and 6mA frequency data for NA12878 and MCF7 EcoGII-treated chromatin samples sequenced on nanopore r9.4.1.</p>
Neural and behavioral data from: A dynamic sequence of visual processing initiated by gaze shifts
<p>Animals move their head and eyes as they explore and sample the visual scene. Previous studies have demonstrated neural correlates of head and eye movements in rodent primary visual cortex (V1), but the sources and computational roles of these signals are unclear. We addressed this by combining measurement of head and eye movements with high density neural recordings in freely moving mice. V1 neurons responded primarily to gaze shifts, where head movements are accompanied by saccadic eye movements, rather than to head movements where compensatory eye movements stabilize gaze. A variety of activity patterns immediately followed gaze shifts, including units with positive, biphasic, or negative responses, and together these responses formed a temporal sequence following the gaze shift. These responses were greatly diminished in the dark for the vast majority of units, replaced by a uniform suppression of activity, and were similar to those evoked by sequentially flashed stimuli in head-fixed conditions, suggesting that gaze shift transients represent the temporal response to the rapid onset of new visual input. Notably, neurons responded in a sequence that matches their spatial frequency preference, from low to high spatial frequency tuning, consistent with coarse-to-fine processing of the visual scene following each gaze shift. Recordings in foveal V1 of freely gazing head-fixed marmosets revealed a similar sequence of temporal response following a saccade, as well as the progression of spatial frequency tuning. Together, our results demonstrate that active vision in both mice and marmosets consists of a dynamic temporal sequence of neural activity associated with visual sampling.</p>
Data from: Benchmarking ultra-high molecular weight DNA preservation methods for long-read and long-range sequencing
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Data from: Concealed by darkness: interactions between predatory bats and nocturnally migrating songbirds illuminated by DNA sequencing
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Establishing a robust genetic sequencing and gene expression data library in cardiovascularly healthy cats
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Data from: Adaptive radiation of the Callicarpa genus in the Bonin Islands revealed through double-digest restriction site–associated DNA sequencing analysis
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Sequencing method matters: Differential performance of DNA methylation data acquisition in epigenetic clock calibration
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Data from: CRISPR screening by AAV episome-sequencing (CrAAVe-seq): A scalable cell type-specific in vivo platform uncovers neuronal essential genes
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Data from: Inhibition of the dorsomedial striatal direct pathway is essential for the execution of action sequences
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Expanded phylogeny of Nomadinae (Hymenoptera: Apidae) with integration of UCE and DNA barcode sequence data
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Data for a preliminary molecular phylogeny of the family Hydroptilidae (Trichoptera): exploring the combination of targeted enrichment data and legacy Sanger sequence data
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Supplemental data from: Next-generation sequencing base calls for mosaic mutations
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Alfalfa genotyping-by-sequencing (GBS) data
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Effect of different types of sequence data on palaeognath phylogeny
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RNA sequencing data for polyphenic and monophenic Manduca sexta strains
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The phylogeny and global biogeography of Primulaceae based on high-throughput DNA sequence data
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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.