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590 results for “Targeted sequencing”
Figure 8 in Target-enriched DNA sequencing from historical type material enables a partial revision of the Madagascar giant stream frogs (genus Mantidactylus)
Figure 8. Lateral views of the heads of preserved adult males of Mantidactylus (Mantidactylus) radaka sp. nov. in comparison with M. (M.) guttulatus and M. (M.) grandidieri. Note the more distinct and larger tympanum (indicated by yellow arrows) in the latter two species. Not to scale.
Figure 6 in Target-enriched DNA sequencing from historical type material enables a partial revision of the Madagascar giant stream frogs (genus Mantidactylus)
Figure 6. Photographs of living specimens of Mantidactylus radaka sp. nov. (a, b) Male holotype ZSM 644/2001 (field number FGMV 2001.132) from Manarikoba forest, Tsaratanana Massif. (c–f) Female paratype ZSM 1800/2010 (ZCMV 12345) from Camp 1 (Antevialambazaha), Tsaratanana Massif. (g, h) Female paratype ZSM 97/2016 (MSZC 0080) from Ampotsidy. (i, j) Male paratype MSZC 0120 (uncatalogued in UADBA) from Ampotsidy. (k) Unidentified specimen from Camp 0 (Ankijagna Lagnana), Tsaratanana Massif. (l) Paratype ZSM 582/2014 (DRV 6073) from Camp 0 (Ankijagna Lagnana). (m, n) Unidentified female specimen from Manongarivo (Camp 0), probably preserved in UADBA collection.
Sequence assembly lengths of the target used reported by HybPiper.
<p>This dataser provides detailed information on the sequence assembly lengths of the targets used in our study. We successfully recovered between 386 and 488 loci for each species, with coverage varying from 43× in M. chiriquiensis A.Vázquez (ID MA3140B) to 1174.77× in M. aff. silvioi (Lozano) Govaerts (ID MA3129B), and a mean coverage of 309×. The mean sequence length for each target ranged from 7 to 2,721 bp, with an overall mean of 79 bp per target. On average, we recovered approximately 387,557 bp for each sample. Samples with less than 250 genes with sequences above 50% of the mean target length (GenesAt50pct) were discarded. This data is crucial for understanding the depth and breadth of our sequence coverage and provides valuable context for our findings.</p>
Targeted Next Generation Sequencing data for European Green Crab
<p class="western"><span>In the northeast Pacific Ocean there is high interest in developing eDNA-based survey methods to aid management of invasive populations of European green crab (<i>Carcinus maenas</i>). Expected benefits are improved sensitivity for early detection of secondary spread and to assess the outcome of eradication efforts. A new eDNA-based approach we term 'Targeted Next Generation Sequencing (tNGS)' is introduced here and shown to improve detection relative to qPCR at sites with lower green crab CPUE values measured by trapping. DNA standards (gBlock) with starting molecule copies that were 10- to 100- times lower than the qPCR limit of detection returned significant numbers of sequencing reads, which in our field assessments translated to a 7% - 10% increase in detection probability from tNGS relative to qPCR at sites with lower CPUE. We also found the number of sequencing reads from tNGS was significantly correlated with green crab CPUE whereas Ct values from qPCR were not. When sources of variation were partitioned for each assay, we found the difference between mean within-site and mean between-site variation was much larger and had non-overlapping confidence intervals for tNGS relative to qPCR, suggesting the former may offer more power for detecting spatial variation in eDNA availability. Results presented here indicate this approach is suitable for species of known low abundances where a positive detection has high economic or environmental consequences. Any species with an existing qPCR assay can be easily tested with a tNGS assay. We conclude with a discussion on the fit for purpose applications of tNGS vs. qPCR on how to best apply molecular surveys in management programs.</span></p>
Comprehensive discovery of CRISPR-targeted terminally redundant sequences in the human gut metagenome: viruses, plasmids, and more
<p>Supplementary Table 2-1. Samples and assembly summary <br> Supplementary Table 2-2. CRISPR-targeted TR sequence summary</p>
A new approach using targeted sequence capture for phylogenomic studies across Cactaceae
<p>Relationships within the major clades of Cactaceae are relatively well known based on DNA sequence data mostly from the chloroplast genome. Nevertheless, some nodes along the backbone of the phylogeny, and especially generic and species-level relationships, remain poorly resolved and are in need of more informative genetic markers. In this study, we propose a new approach to solve the relationships within Cactaceae, applying a targeted sequence capture pipeline. We designed a custom probe set for Cactaceae using MarkerMiner and complemented it with the Angiosperms353 probe set. We then tested both probe sets against 36 different transcriptomes using Hybpiper preferentially retaining phylogenetically informative loci and reconstructed the relationships using RAxML-NG and Astral. Finally, we tested each probe set through sequencing 96 accessions, representing 88 species across Cactaceae. Our preliminary analyses recovered a well-supported phylogeny across Cactaceae with a near identical topology among major clade relationships as that recovered with plastome data. As expected, however, we found incongruences in relationships when comparing our nuclear probe set results to plastome datasets, especially at the generic level. Our results reveal great potential for the combination of Cactaceae-specific and Angiosperm353 probe set application to improve phylogenetic resolution for Cactaceae and for other studies.</p>
Data from: Phylogenomic resolution of the cetacean tree of life using target sequence capture
The evolution of the cetaceans, from their early transition to an aquatic lifestyle to their subsequent diversification, has been the subject of numerous studies. However, while the higher-level relationships among cetacean families have been largely settled, several aspects of the systematics within these groups remain unresolved. Problematic clades include the oceanic dolphins (37 spp.), which have experienced a recent rapid radiation, and the beaked whales (22 spp.), which have not been investigated in detail using nuclear loci. The combined application of high-throughput sequencing with techniques that target specific genomic sequences provide a powerful means of rapidly generating large volumes of orthologous sequence data for use in phylogenomic studies. To elucidate the phylogenetic relationships within the Cetacea, we combined sequence capture with Illumina sequencing to generate data for ~3200 protein-coding genes for 68 cetacean species and their close relatives including the pygmy hippopotamus. By combining data from >38,000 exons with existing sequences from 11 cetaceans and seven outgroup taxa, we produced the first comprehensive comparative genomic dataset for cetaceans, spanning 6,527,596 aligned base pairs and 89 taxa. Phylogenetic trees reconstructed with maximum likelihood and Bayesian inference of concatenated loci, as well as with coalescence analyses of individual gene trees, produced mostly concordant and well-supported trees. Our results completely resolve the relationships among beaked whales as well as the contentious relationships among ocean dolphins, especially the problematic subfamily Delphininae, which includes the common and bottlenose dolphins. We performed Bayesian estimation of species divergence times using MCMCtree, integrating recently described fossils as calibration points (e.g., Mystacodon selenensis) that have not been used before. Integration of new fossil dates in the context of autocorrelated rates indicate that the diversification of Crown Cetacea began before the Late Eocene and the divergence of Crown Delphinidae as early as the Middle Miocene.
Sanger sequencing of target and off-target genomic regions for gene-edited iPSC clones with SETBP1 genetic variants
<p>This data set includes chromatograms generated using sanger sequencing of targeted regions of genomic DNA from clonal iPSC lines. The iPSC lines include clones generated using CRISPR/Cas9 homology directed repair to introduce genetic variants into <em>SETBP1,</em> and their wild-type controls. Additional files have been included in the data set to link chromatogram (ab1) files to specific iPSC clones for genomic regions across the variant in <em>SETBP1 (</em>SETBP1 clones genetic variant sanger sequencing.xslx)<em> </em>and top<em> </em>off-target sites (SETBP1 clones off-target sanger sequencing.xlsx). </p>
Data from: A phylogeny of birds based on over 1,500 loci collected by target enrichment and high-throughput sequencing
Evolutionary relationships among birds in Neoaves, the clade comprising the vast majority of avian diversity, have vexed systematists due to the ancient, rapid radiation of numerous lineages. We applied a new phylogenomic approach to resolve relationships in Neoaves using target enrichment (sequence capture) and high-throughput sequencing of ultraconserved elements (UCEs) in avian genomes. We collected sequence data from UCE loci for 32 members of Neoaves and one outgroup (chicken) and analyzed data sets that differed in their amount of missing data. An alignment of 1,541 loci that allowed missing data was 87% complete and resulted in a highly resolved phylogeny with broad agreement between the Bayesian and maximum-likelihood (ML) trees. Although results from the 100% complete matrix of 416 UCE loci was similar, the Bayesian and ML trees differed to a greater extent in this analysis, suggesting that increasing from 416 to 1,541 loci led to increased stability and resolution of the tree. Novel results of our study include surprisingly close relationships between phenotypically divergent bird families, such as tropicbirds (Phaethontidae) and the sunbittern (Eurypygidae) as well as between bustards (Otididae) and turacos (Musophagidae). This phylogeny bolsters support for monophyletic waterbird and landbird clades and also strongly supports controversial results from previous studies, including the sister relationship between passerines and parrots and the non-monophyly of raptorial birds in the hawk and falcon families. Although significant challenges remain to fully resolving some of the deep relationships in Neoaves, especially among lineages outside the waterbirds and landbirds, this study suggests that increased data will yield an increasingly resolved avian phylogeny.
In-house sequence database of S.pn recombinant protein vaccine target-related genes
<p>In-house sequence database of S.pn recombinant protein vaccine target-related genes.</p>
Analysis of RNA-seq, DNA target enrichment, and Sanger nucleotide sequence data resolves deep splits in the phylogeny of cuckoo wasps (Hymenoptera: Chrysididae)
<p>The wasp family Chrysididae (cuckoo wasps, gold wasps) comprises exclusively parasitoid and kleptoparasitic species, many of which feature a stunning iridescent coloration and phenotypic adaptations to their parasitic life style. Previous attempts to infer phylogenetic relationships among the family's major lineages (subfamilies, tribes, genera) based on Sanger sequence data were insufficient to statistically resolve the monophyly and the phylogenetic position of the subfamily Amiseginae and the phylogenetic relationships among the tribes Allocoeliini, Chrysidini, Elampini, and Parnopini (Chrysidinae). Here, we present a phylogeny inferred from nucleotide sequence data of 492 nuclear single-copy genes (230,915 aligned amino acid sites) from 94 species of Chrysidoidea (representing Bethylidae, Chrysididae, Dryinidae, Plumariidae) and 45 outgroup species by combining RNA-seq and DNA target enrichment data. We find support for Amiseginae being more closely related to Cleptinae than to Chrysidinae. Furthermore, we find strong support for Allocoeliini being the sister lineage of all remaining Chrysidinae, while Elampini represent the sister lineage of Chrysidini and Parnopini. Our study corroborates results from a recent phylogenomic investigation which revealed Chrysidoidea as likely paraphyletic</p>
Supplementary Information: Tracking an Occluded Visual Target with Sequences of Saccades
<p>Supplementary movie for the article "Tracking an Occluded Visual Target with Sequences of Saccades", showing the design and gaze behaviour in visual tracking with intermittent occlusions. Raw gaze data also provided.</p>
Data for: Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Satyrinae, Nymphalidae)
<p>The diverse, largely Neotropical subtribe Euptychiina (Satyrinae, Nymphalidae) is widely regarded as one of the most taxonomically challenging groups among all butterflies. Over the last two decades, morphological and molecular studies have revealed widespread paraphyly and polyphyly among genera, and a comprehensive, robust phylogenetic hypothesis is needed to build a firm generic classification to support ongoing taxonomic revisions at the species level. Here, we generated a dataset which includes sequences for up to nine nuclear genes and the mitochondrial COI 'barcode' for a total of 1280 specimens representing 449 described and undescribed species of Euptychiina and 39 outgroups, resulting in the most complete phylogeny for the subtribe to date. In combination with a recently developed genomic backbone tree this dataset resulted in a topology with strong support for most branches. </p>
FIGURE 39 Modica confusa comb.n in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 39 Modica confusa comb.n. (a–d) male genitalia (dissection KW-21-64), lateral (a) with posterior view juxta, dorsal (b), aedeagus lateral (c) and aedeagus dorsal (d); (e–h) female genitalia (dissection KW-21-65), lateral view exterior tip abdomen (e), ventral view exterior tip abdomen (f), dorsal view interior abdomen (g), corpus bursae perpendicular to signa (h). Scale bars 1 mm.
FIGURE 36 Deltaya gen.n in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 36 Deltaya gen.n. Species diversity mapped on a 2 degree grid. Colours ranging from dark green to red represent increasing diversity.
FIGURE 33 Deltaya ocypete comb.n in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 33 Deltaya ocypete comb.n. (a) male wing venation; (b and c) male (FLMNH-MGCL-209681) dorsal (b) and ventral (c); (d and e) female dorsal (d) and ventral (e). Scale bars 1 cm.
FIGURE 30 Occulta ocnus comb.n in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 30 Occulta ocnus comb.n. (a) male wing venation; (b and c) male (LEP-10408) dorsal (b) and ventral (c); (d and e) female (ST ocnus) dorsal (d) and ventral (e), with specimen labels. Scale bars 1 cm.
FIGURE 35 Deltaya ocypete comb.n. A-E in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 35 Deltaya ocypete comb.n. A-E, male genitalia (dissection KW-21-66), lateral (a) with posterior view juxta, dorsal (b), aedeagus lateral (c) and aedeagus dorsal (d), vesica everted showing cornuti (e); (f–i) female genitalia (dissection KW-21-67), lateral view exterior tip abdomen with 8th segment retracted (f), lateral view exterior tip abdomen with 8th segment extended (g), ventral view exterior tip abdomen (h), dorsal view interior abdomen (i). Scale bars 1 mm.
FIGURE 31 Occulta ocnus comb.n in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 31 Occulta ocnus comb.n. (a and b) male genitalia (dissection SN-19-157), lateral (a) with posterior view juxta, aedeagus lateral (b); (c–e) female genitalia (dissection NHMUK010402850), lateral view exterior tip abdomen (c), ventral view exterior tip abdomen (d), dorsal view interior abdomen (e), corpus bursae perpendicular to signa (f). Scale bars 1 mm.
FIGURE 27 Trico tricolor fulgoracomb.n in Combining target enrichment and Sanger sequencing data to clarify the systematics of the diverse Neotropical butterfly subtribe Euptychiina (Nymphalidae, Satyrinae)
FIGURE 27 Trico tricolor fulgoracomb.n. (a and b) male dorsal (a) and ventral (b); (c and d) female dorsal (c) and ventral (d). Scale bars 1 cm.
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.