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2,315 results for “Comparative analysis”
FIGURE 4 in Comparative analysis of rDNA distribution in 29 species of Begonia sect. Coelocentrum Irmsch.
FIGURE 4. Simultaneous localization of 5S (red) and 45S (green) rDNA sites in B. longistyla (a), B. masoniana (b), B. debaoensis (c), B. liuyanii (d), B. cirrosa (e), B. fangii (f), and B. wangii (g). The arrows in Fig. a and Fig. b indicate longer metacentric chromosomes. Bars, 5μm
Comparative Analysis of Gut Microbiota in Hepatocellular Carcinoma and Hepatitis
<p><span><span> </span></span><span>The differential abundance of flora was modeled using support vector machine (SVM) methodology. Predictive performance for hepatocellular carcinoma and hepatitis was assessed using the model. 3 genera including <em>Paraprevotella</em>, <em>Pasteurellaceae</em>, and <em>Prevotellaceae</em> showed superior predictive performance for HCC, whereas <em>Oscillibacter</em>, <em>Clostridium_XVIII</em>, while 5 genera including <em><span> </span>Eggerthella</em> exhibited better predictive ability for HBV.</span></p> <p><span> </span></p>
Supporting data for: A comparative analysis of planarian genomes reveals regulatory conservation in the face of rapid structural divergence
<p>This upload contains genome assemblies and annotation files for four planarian species. </p> <h2>Genome assemblies</h2> <p>The genome assemblies are deposited as FASTA files with the ending '.fa.gz'.</p> <h2>Genome annotations</h2> <p>The genome annotations are deposited as gff3 files and contain the 'ENCODE' keyword.</p> <p>Integration into Wormbase are currently ongoing to provide userfriendly access.</p> <h2>Transposable element annotation</h2> <p>Transposable element annotation performed with the EDTA pipeline are deposited as GFF3 files with the file ending '.EDTA.TEanno.gff3.gz'.</p> <h2>Satellite DNA</h2> <p>Repetitive satellite regions annotated using RepeatExplorer and SRF are deposited as GFF3 files with the ending 'satDNA.gff3'.</p>
Database of research methods in the educational field. Bibliometric analysis: comparative study between Scopus and WoS
<p>Data package on research methods in the educational field in the Web of Science and Scopus databases between 2000 and 2023</p>
DeepRNA-Reg: A Deep-Learning Based Approach for Comparative Analysis of CLIP Experiments
<p>GEO series accession information for datasets associated with DeepRNA-Reg</p>
Annex to paper entitled From Collective Action to Civil Disorder: Comparative Analysis of Pandemic-ridden Czechia and Slovakia. From: March 1, 2020; To: March 1, 2022
<p>This databasis draws on ACLED DATA PROJECT. It was elaborated for the research project <em>Civil Disorder in Pandemic-ridden European Union</em>. The latter was financially supported by the National Science Centre, Poland [grant number 2021/43/B/HS5/00290].</p>
Towards the conservation of Brazilian legumes: Summary, land cover and use analytics, and a comparative analysis of locations count methods (curated vs. automated [buffer-dissolution])
<p>This dataset presents key findings from the study "<strong>Automating and Enhancing Species Extinction Risk Assessments with Historical Land Use and Land Cover Data</strong>."</p> <p>The file `<em>summary-threatened-legume-species.ods</em>` provides a summary of all threatened species of the Leguminosae family native to Brazil, including IUCN category and criteria, location counts, and the year of the latest assessment, sourced from official records. Additionally, it includes calculated values for Area of Occupancy (AOO) and Extent of Occurrence (EOO), along with trend data indicating natural area change rates (decline [positive number, red] or growth [negative number, green]) within both AOO and EOO. Location counts are further detailed across various buffer radii (1-5 km), utilizing a buffer-dissolution method for automated location counting. Each buffer radius is analyzed to assess AOO and EOO decline, where '1' indicates a species is threatened and '0' indicates it is not. This data provides an efficient method for screening threatened species under criterion B of the IUCN Red List guidelines.</p> <p>The file `<em>overlay-analysis.ods</em>` contains overlay analysis results for AOO and EOO of each species using MapBiomas land use and land cover (LULC) data (specifically MapBiomas Brazil, collection 7.1) from 1985 to 2021, covering all threatened legume species. This file provides both absolute area in square kilometers and percentages for each LULC class. The overlay analysis results support estimates of growth and decline trends for each LULC class.</p> <p>The file `<em>trend-analysis.ods</em>` presents results of annual rate estimates from trend analysis across LULC classes, and including both natural and anthropic groupings. A complete JSON database with p-values and R² values is provided in `<em>trend-analysis.json</em>`.</p> <p>This approach, combining all results for each species in a comprehensive, merged dataset, allows for effective filtering and ranking of the most threatened species as well as identification of their primary threats.</p> <p>We recommend opening the ODS files with LibreOffice, as Microsoft Excel may experience issues parsing decimal formats accurately.</p> <p>More detailed maps and graphs are available at <a title="LULC-MapBiomas-Leguminosae" href="https://github.com/lsbjordao/LULC-MapBiomas-Leguminosae" target="_blank" rel="noopener">https://github.com/lsbjordao/LULC-MapBiomas-Leguminosae</a>.</p>
Data from: Leukocyte profiles are associated with longevity and survival, but not migratory effort: a comparative analysis of shorebirds
1. Assessment of leukocyte profiles has become an increasingly popular tool in the fields of ecology and ecophysiology. The ratio of heterophils to lymphocytes (H/L ratio) is of special utility, as it reflects physiological adaptation of an organism to cope either with an infection through injury (via heterophils) or a communicable disease (via lymphocytes). Thus, elevated H/L ratios may constitute an adaptation to risky environments (i.e. associated with high risk of injury). While intra-population variation in avian H/L ratio has been extensively studied, we are aware of no studies that linked this trait to life-history components at the inter-specific level. 2. We measured H/L ratio in over 400 shorebirds from 19 species during their autumn migration through Central Europe. Phylogenetically informed comparative methods were used to test whether H/L ratio was related to: i) annual survival and lifespan; ii) migratory effort, as measured with total migration distance and migratory energy reserves; and iii) confounding variables such as body size or breeding latitude. 3. A relatively strong phylogenetic signal and spatial phylogenetic autocorrelation indicated that most diversification in shorebird H/L ratios occurred relatively early in radiation of this group. 4. Comparative analysis gave strong support for the negative associations of H/L ratio with residual lifespan and annual survival. In contrast, we found no support for the effect of migratory behaviour on H/L ratios, suggesting that leukocyte profiles in shorebirds may not constitute an important physiological adaptation for long-distance migration. 5. Our study provided the first comparative evidence for a link between H/L ratios and important life-history traits in birds. Strong negative associations with annual survival and residual lifespan indicate that leukocyte profiles may form an adaptive basis for life-history strategies in birds.
Data from: Comparative landscape genetic analysis of three Pacific salmon species from subarctic North America
We examined the assumption that landscape heterogeneity similarly influences the spatial distribution of genetic diversity in closely related and geographically overlapping species. Accordingly, we evaluated the influence of watershed affiliation and nine habitat variables from four categories (spatial isolation, habitat size, climate, and ecology) on population divergence in three species of Pacific salmon (Oncorhynchus tshawytscha, O. kisutch, and O. keta) from three contiguous watersheds in subarctic North America. By incorporating spatial data we found that the three watersheds did not form the first level of hierarchical population structure as predicted. Instead, each species exhibited a broadly similar spatial pattern: a single coastal group with populations from all watersheds and one or more inland groups primarily in the largest watershed. These results imply that the spatial scale of conservation should extend across watersheds rather than at the watershed level which is the scale for fishery management. Three independent methods of multivariate analysis identified two variables as having influence on population divergence across all watersheds: precipitation in all species and subbasin area (SBA) in Chinook. Although we found general broad-scale congruence in the spatial patterns of population divergence and evidence that precipitation may influence population divergence in each species, we also found differences in the level of population divergence (coho > Chinook and chum) and evidence that SBA may influence population divergence only in Chinook. These differences among species support a species-specific approach to evaluating and planning for the influence of broad-scale impacts such as climate change.
Data from: Why migrate during the day: a comparative analysis of North American birds
Migration can take place primarily during the day, or at night, or during both depending on the species. Why the timing of migration varies among species has been the object of much research but the underlying ecological processes are still unclear. Proximally, migration timing may be influenced by the timing of other activities or may be more prevalent in species that migrate over long distances. Adaptive scenarios emphasize the reduction in flight costs at night especially in smaller species and the advantages of travelling in groups during the day to locate staging sites more efficiently. I used phylogenetic independent contrasts to examine these hypotheses in all North American nesting birds. I uncovered 24 evolutionary transitions in migration timing, most of which involved a switch from nocturnal to diurnal migration. Few of these transitions involved a concomitant change in the timing of foraging habits or migration distance. However, species in diurnal clades were larger, travelled in larger flocks and were generally more sociable than their nocturnal counterparts. The results support the hypotheses that a reduction in flight costs and the ability to pool information from companions are associated with migration timing in North American bird species.
Data set of the article "Comparative analysis of the unbinding pathways of antiviral drug Indinavir from HIV and HTLV1 proteases by supervised molecular dynamics simulation"
<p>Data set of the article "Comparative analysis of the unbinding pathways of antiviral drug Indinavir from HIV and HTLV1 proteases by supervised molecular dynamics simulation"</p>
Comparative Analysis of Complete Chloroplast Genomes and Multiple DNA Sequences Reveals Interspecific Relationships of C. bretschneideri and Related Species in China
<p><strong> ITS, and <em>LEAFY</em> intron 1 sequencing of 36 Crataegus accessions.</strong></p>
Figure 7 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 7. Egg production of Subulina octona. (a) Mean number of eggs per reproductive event; (b) mean shell height and mean number of eggs produced.
Figure 3 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 3. Histological sections of the free-oviduct of the subulinid species Subulina octona (a,b); Allopeas gracile (c); Allopeas micra (d) and Leptinaria unilamellata (e,f). Black asterisk, oviduct lumen; white asterisk: underlying connective tissue.
Figure 4 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 4. Histological sections showing the bursa copulatrix and prostate of the subulinid species Allopeas gracile (a–c); Subulina octona (d–f); and Leptinaria unilamellata (g,h). Black asterisk, bursa copulatrix lumen; white asterisk: prostate.
Figure 1 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 1. Morphology of the reproductive system of Subulina octona. (a) Shelled embryo; (b) prostate; (c) free-oviduct; (d) epithelia and basal membrane of the free-oviduct; (e) eggshell; (f,g) bursa copulatrix; (h) general view of the reproductive apparatus; (i, j) general view of the body, showing the spermoviduct which occupies the body whorl and the penultimate whorl of the shell. es, egg shell; eg, egg; se, shelled embryo; sov, spermoviduct; pr, prostate; bc, bursa copulatrix; fo, free-oviduct; pc, penial complex.
Figure 2 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 2. Histological sections of the spermoviduct and egg of the subulinid species Allopeas micra (a,b); Allopeas gracile (c–e); Leptinaria unilamellata (f) and Subulina octona (g,h). SC, secretory cells; black arrow, calcified egg shell; black asterisk, secretory cells; white asterisk, egg with non-calcified egg shell.
Figure 5 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 5. Histological sections showing the spermatheca (indicated by black arrows) of the subulinid species Allopeas micra (a); Subulina octona (b); Allopeas gracile (c) and Leptinaria unilamellata (d).
Figure 6 in Life history of Subulina octona (Brugüière) (Gastropoda: Pulmonata: Subulinidae) based on four-year laboratory observations and a comparative histological analysis of egg-retaining and ovoviviparous subulinids
Figure 6. Growth and mortality of Subulina octona during juvenile, adult and senescent stages. (a) Mean shell height; (b) survival. (c) growth rate.
Figure 5 in Comparative analysis of the karyotype sensitivities of Apodemus flavicollis and laboratory mice to DNA-damaging agents
Figure 5. Polyploid metaphase in bone marrow cell of A. flavicollis after Mitomycin C treatment. Some of the chromosomes are also damaged. Pericentric inversions and fragments are observed.
ScienceDex guides
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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.