Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
3,505
datasets available to search
ShareScore release 0.9.0
Dataset results
3,505 results for “completive”
Data from: Complete species phylogeny of the marine midge Pontomyia (Diptera: Chironomidae) reveals a cosmopolitan species and a new synonym
Pontomyia (Diptera: Chironomidae) is an exclusively marine and flightless insect genus with four described species from the Indo-Pacific and one undescribed taxon known only by its larvae, pupal skins and females from the western Atlantic. A previous study of relationships among three of the Indo-Pacific species reported each of them to be monophyletic, with high genetic diversity within P. natans Edwards, the type species, and P. pacifica Tokunaga. The evolutionary affinities of the Australian endemic P. cottoni Womersley that resembles P. natans, as well as the putative Atlantic species are hitherto undetermined. A complete molecular phylogeny of the genus based on two nuclear and two mitochondrial DNA markers indicates that P. cottoni and a Puerto Rican (Atlantic) larval population are nested within the P. natans clade. Furthermore, P. natans and P. cottoni are inseparable in all morphological characters used previously to distinguish them. Therefore, we synonymize P. cottoni with P. natans, syn. nov., whose known range now encompasses all three ocean basins after including the Puerto Rican population. This distribution warrants further investigation into the life history of Pontomyia, a midge with one of the shortest known adult lifespans among insects.
Data from: Complete loss of the MHC II pathway in an anglerfish, Lophius piscatorius
Genome studies in fish provide evidence for the adaptability of the vertebrate immune system, revealing alternative immune strategies. The reported absence of the major compatibility complex (MHC) class II pathway components in certain species of pipefish (genus <i>Syngnathus</i>) and cod-like fishes (order Gadiformes) is of particular interest. The MHC II pathway is responsible for immunization and defence against extracellular threats through the presentation of exogenous peptides to T helper cells. Here we demonstrate the absence of all genes encoding MHC II components (CD4, CD74 A/B, and both classical and non-classical MHC II α/β) in the genome of an anglerfish, <i>Lophius piscatorius</i>, indicating loss of the MHC II pathway. In contrast, it has previously been reported that another anglerfish, <i>Antennarius striatus</i>, retains all MHC II genes, placing the loss of MHC II in the <i>Lophius</i> clade to their most recent common ancestor. In the three taxa where MHC II loss has occurred, the gene loss has been restricted to four or five core MHC II components, suggesting that, in teleosts, only these genes have functions that are restricted to the MHC II pathway.
FIGURES 40–54 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURES 40–54. SEM of several eunotioid elements: Figs 40–41 Perforated and opened valvocopula and detail of short internal raphe slit of Eunotia ventriosa var. brevis. Rimoportulae not visible; note the alternating short striae at the dorsal valve mantle and the thick apical cell wall; Fig. 42 Detail of internally uncovered areolae of E. ventriosa var. brevis; Figs 43–45 Bicudoa amazonica: Fig. 43 Detail of external uncovered areolae; Fig. 44 Transversal view of the valve face showing areolae aperture not covered and thick silicified cell wall; Fig. 45 Apex detail of B. amazonica with no external raphe nor apical pore field; Fig. 46 Detail of E. ventriosa var. brevis in oblique external view showing well developed raphe branch and perforated connective bands; Figs 47–54 SEM of different Eunotia species from the Brazilian Amazon showing distinct external and internal evolutionary patterns of raphe system: Fig. 47 Eunotia siolii Hustedt—Holotype (AM 1310). Raphe located mainly on the ventral valve mantle; Fig. 48 Eunotia synedraeformis Hustedt. Prominent "J" shaped raphe with dilated distal and proximal ends; rimoportulae aperture distinct; Fig. 49 Eunotia tapacumopsis Metzeltin & Lange-Bertalot. Large raphe slit located on the valve mantle and valve face; Fig. 50 Eunotia sp. from the Rio Negro with prominent spines and areolae covered externally by velum; Figs 51–52 Eunotia waimiriorum C.E. Wetzel. Reduced raphe system (white arrows) and poorly developed helictoglossae; Fig. 53 Eunotia bidens Ehrenberg. Note internal arrangement of the striae areolae aligned in a narrow "ditch" as in Fragilariforma hamiltonii; Fig. 54 Eunotia sp. showing a well developed helictoglossa. Scale bars: Figs 40–41, 45–47 and 53–54: 5 µm; Figs 42–44: 0.5 µm; Fig. 48: 2 µm; Fig. 49: 3 µm; Figs 50–52: 1 µm..
FIGURES 21–27 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURES 21–27. SEM micrographs of Bicudoa amazonica in external view. Fig. 21 Whole frustule in valvar view showing irregular silica deposition along the central part of the valve; central valve face with somewhat concentrated silica deposition at the apical axis; Fig. 22 Valve face apex detail showing the complete absence of raphe aperture system; small foramina forming the striae; Figs 23–24 Detail of both extremities showing reduced slightly radiate striae; note the absence of apical pore fields and external raphe openings on the mantle; axial area narrow, more or less eccentric; Fig. 25 Apex detail with small wart-like silicate on the valve edges (arrow); Fig. 26 Detail of apical valve outline in oblique view; Fig. 27 Detail of one valve and the cingulum in girdle view showing perforated Eunotia-like open copulae (white arrows) with multiporoid striae. Note the numerous open connective bands. Scale bars: Fig. 21: 10 µm; Figs 22–25: 2 µm; Figs 26–27: 5 µm.
FIGURES 7–20 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURES 7–20. LM micrographs (bright field optics) of Bicudoa amazonica (Figs 7–14). Holotype population from the Rio Negro hydrographical basin, Brazil (SP–400.477). Fig. 7 Large cell showing slight dorsiventrality and irregular pattern of striae; Fig. 8 Holotype specimen; Figs 7–13 Micrographs illustrating size reduction series in the type population; Fig. 14 Two cells in connective view; Figs 15–17 Three Eunotia species similar in size and shape: Fig. 15 Eunotia pileus var. guianense (Ehrenberg) E. Reichardt; Fig. 16 Eunotia coringii Metzeltin & Lange-Bertalot; Fig. 17 Eunotia ventriosa R.M. Patrick. Note the helictoglossae present and visible on all Eunotia species (black arrow); Figs 18–20 Size reduction series of Fragilariforma hamiltonii Metzeltin & Lange-Bertalot. All specimens from the Rio Negro basin. Scale bar: 10 µm.
FIGURE 6 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURE 6. Sampling sites (black dots) located along the Negro River hydrographical basin, the Brazilian Amazon for (a) planktonic samples (n = 119), including tributaries and the main channel. (b) Periphytic samples collected on distinct tributaries (n = 153). Turtle sampling site area highlighted.
FIGURES 33–39 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURES 33–39. Fragilariforma species from Europe (Weierbach basin, Luxembourg, Figs 33–35) and South America (Rio Negro basin, Brazilian Amazon, Figs 36–39). Fig. 33 Valve and cingulum of F. virescens (Ralfs) D.M. Williams & Round showing marginal spines, apical pore fields, rimoportulae opening (white arrow) and connective bands with one row of areolae. Striae uniseriate composed by areolae with simple closing plates; sternum centrally located; Fig. 34 F. virescens in connective view showing mantle margin with siliceous plaques, spines present on valve face/mantle border, having spathulate tips and open girdle bands and Fig. 35 Detail of rimoportula (transapically) located on the valve pole usually aligned with the striae; Figs 36–39 Fragilariforma hamiltonii Metzeltin & Lange-Bertalot; Fig. 36 Detail of apical area showing thickened marginal spines, areola structure and absence of apical pore field; central sternum clearly visible; Fig. 37 Small specimen showing no rimoportulae aperture nor apical pore fields; Figs 38–39 Oblique internal view of F. hamiltonii showing the internal arrangement of the striae with the inner openings of areolae aligned in a narrow "ditch"; apical pore field and rimoportula absent in both species. Scale bars: Figs 33–34: 10 µm; Figs 35–37: 1 µm; Figs 38–39: 3 µm.
FIGURES 1–5 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURES 1–5. SEM. South American representatives of the subclass Eunotiophycideae from freshwater environments: Fig. 1 Eunotia sp. and Fig. 2 Perinotia diamantina F. Ferrari & C.E. Wetzel from the 'Chapada Diamantina' range mountains in northeastern Brazil (Bahia State)—Holotype (Sample SP–391.701), 'Instituto de Botânica', São Paulo, Brazil; Fig. 3 Actinella peronioides Hustedt, from Rio Negro basin, Brazilian Amazon—Sample SP–400.309, 'Instituto de Botânica', São Paulo, Brazil; Fig. 4 Peronia brasiliensis Hustedt from Lake Jurucuí (Pará state), Brazilian Amazon—Paratype. Sample AM1018, Hustedt Collection, Bremerhaven; Fig. 5 Actinella falcifera (Metzeltin & Lange-Bertalot) Metzeltin & Lange-Bertalot (subgenus Cultria Metzeltin & Lange-Bertalot 1998) from Ereri River, Cachimbo Mountains, in southern Pará, Brazilian Amazon—Sample AM1310, Hustedt Collection, Bremerhaven. Scale bars: Figs 1–2: 10 µm; Figs 3–5: 5 µm.
FIGURES 28–32 in Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta)-a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage
FIGURES 28–32. SEM micrographs of Bicudoa amazonica in internal view. Apices details showing the absence of structures typical of Eunotiophycideae (raphe, helictoglossae and rimoportulae). Fig. 28 Valve with vestigial raphe at both extremities (arrows); Fig. 29 Detail of apex with no vestigial raphe; Figs 30–32 Vestigial slit (Figs 30–31) until the complete raphe loss (Fig. 32) in different individuals of the type population. Raphe slits rarely found. Striae interrupted and misaligned near the ventral margin. Scale bars: Figs 28–29: 10 µm; Figs 30–32: 5 µm.
FIGURE 2. Weberbauerella chilensis. A. Complete specimen. B. Corolla, frontal view. C. Flower, lateral view. D. Leaf. E in Weberbauerella chilensis (Fabaceae: Papilionoideae), a new species from the Atacama Desert, Chile
FIGURE 2. Weberbauerella chilensis. A. Complete specimen. B. Corolla, frontal view. C. Flower, lateral view. D. Leaf. E. Habit. Photographs by Luis Faúndez (A, E), Bárbara Larraín (B) and Pablo Sandoval (C, D).
FIGURE 3. Kieslingia chilensis. A. Habitat and habit. B. Complete specimen. C. Capitula, lateral view. D. Capitula, superior view. E. Capitula with fruit dispersion. F in Kieslingia chilensis (Asteraceae: Astereae), a new genus and species from northern Chile
FIGURE 3. Kieslingia chilensis. A. Habitat and habit. B. Complete specimen. C. Capitula, lateral view. D. Capitula, superior view. E. Capitula with fruit dispersion. F. Leaves, detail. Photographs by Gustavo Mieres.
FIGURE 2 in Gastrodia flexistyloides (Orchidaceae), a new mycoheterotrophic plant with complete cleistogamy from Japan
FIGURE 2. Gastrodia flexistyloides (from the holotype). A. Habit. B–D. Flower. (B, back view; C, front view; D, side view). E. Flattened flower. F. Flattened perianth tube with lip. G. Longitudinal section of the flower. H. Lip. I–K. Column (I, front view; J, back view; K, lateral view). A. Bar = 3 cm. B–G. Bar = 5 mm. I–K = 3 mm. H. Bar = 1 mm.
FIGURE 1. A in Gastrodia flexistyloides (Orchidaceae), a new mycoheterotrophic plant with complete cleistogamy from Japan
FIGURE 1. A. Flowering plants of Gastrodia flexistyloides (from the type locality; bar = 2 cm). B. Dissected flower. C. Lip. D–F. Column (D, front view; E, back view; F, lateral view). A. Bar = 2 cm. B. Bar = 5 mm. C–F. Bar = 2 mm.
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 1. Dasyphyllum diamantinense. A. Fertile branch. B. Branch spines. C. Leaf apex. D. Capitula. E. Outermost involucral bract. F. Innermost involucral bract. G. Complete bisexual flower. H in Dasyphyllum diamantinense (Asteraceae, Barnadesioideae): a new species from the Chapada Diamantina, Bahia State, Brazil
FIGURE 1. Dasyphyllum diamantinense. A. Fertile branch. B. Branch spines. C. Leaf apex. D. Capitula. E. Outermost involucral bract. F. Innermost involucral bract. G. Complete bisexual flower. H. Corolla, anthers, and style. I. Cypselae and pappus. J. Internal portion of corolla (Saavedra et al 968, RB). Drawn by Maria Alice Rezende.
Figure 16 in The complete larval development of the lobster shrimp Boasaxius princeps Boas, 1880 (Decapoda: Axiidea: Axiidae) obtained in the laboratory
Figure 16. Boasaxius princeps, megalopa. (A) First maxilliped; (B) second maxilliped; (C) third maxilliped; (D) pereiopod 1, left; (E) pereiopod 1, right; (F) pereiopod 2; (G) pereiopod 3; (H) pereiopod 4; (I) pereiopod 5; (J) pleopod; (K) telson with uropods, dorsal view.
Figure 9 in The complete larval development of the lobster shrimp Boasaxius princeps Boas, 1880 (Decapoda: Axiidea: Axiidae) obtained in the laboratory
Figure 9. Boasaxius princeps, sixth zoea. (A) Complete larva, dorsal view; (B) same, lateral view; (C) antennule; (D) antenna; (E) mandibles; (F) maxillule; (G) maxilla.
Figure 12 in The complete larval development of the lobster shrimp Boasaxius princeps Boas, 1880 (Decapoda: Axiidea: Axiidae) obtained in the laboratory
Figure 12. Boasaxius princeps, seventh zoea. (A) First maxilliped; (B) second maxilliped; (C) third maxilliped; (D) pereiopod 1; (E) pereiopod 2; (F) pereiopod 3; (G) pereiopod 4; (H) pereiopod 5; (I) telson with uropods, dorsal view.
Figure 6 in The complete larval development of the lobster shrimp Boasaxius princeps Boas, 1880 (Decapoda: Axiidea: Axiidae) obtained in the laboratory
Figure 6. Boasaxius princeps, fourth zoea. (A) First maxilliped; (B) second maxilliped; (C) third maxilliped; (D) pereiopod 1; (E) pereiopod 2; (F) pereiopod 3; (G) pereiopod 4; (H) pereiopod 5; (I) telson, with uropods, ventral view.
Figure 5 in The complete larval development of the lobster shrimp Boasaxius princeps Boas, 1880 (Decapoda: Axiidea: Axiidae) obtained in the laboratory
Figure 5. Boasaxius princeps, fourth zoea. (A) Complete larva, dorsal view; (B) same, lateral view; (C) antennule; (D) antenna; (E) mandibles; (F) maxillule; (G) maxilla.
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.