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317 results for “embryogenesis”
Figure 2. Stage 1, about 31–33 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 2. Stage 1, about 31–33 h development: (A) general view of embryo, dorsal side; (B) posterior end of embryo, dorsal view; (C) anterior end, dorsal view; (D) the same, ventral view; (E) rudiment of second antennae; (F) rudiments of thoracic limbs. Scale bars: (A) 50 mm; (B–F) 25 mm.
Figure 12 in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 12. First juvenile stage: (A) head and thorax; (B) abdomen and postabdomen; (C) eye; (D) swimming setae of second antenna. Scale bars: (A, B) 100 mm; (C, D) 25 mm.
Figure 11. Stage 4, about 69–75 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 11. Stage 4, about 69–75 h development: (A) ovaries; (B) heart and carapace, lateral view; (C) heart, dorsal view; (D) carapace and maxillar gland. Scale bar: 25 mm.
Figure 8. Stage 3, about 56 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 8. Stage 3, about 56 h development: (A) general view of embryo, dorsal side; (B) eye capsule, beginning of pigmentation; (C) rudiment of carapace; (D) ovary. Scale bars: (A) 50 mm; (B–D) 25 mm.
Figure 7. Stage 3, about 53–55 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 7. Stage 3, about 53–55 h development: (A) dorsal organ; (B) 'maxillary processes' of the first thoracic limbs; (C) thoracic limbs; (D) maxillae I and mandibles; (E) proximal segment of first thoracic limb; (F) gut. Scale bars: 25 mm.
Figure 4. Stage 2, about 41 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 4. Stage 2, about 41 h development: (A) general view of embryo, dorsal side; (B) the same, ventral side; (C) anterior end of embryo, ventral side; (D) rudiments of second antenna and thoracic limbs. Scale bars: (A, B) 50 mm; (C, D) 25 mm.
Figure 10. Stage 4, about 60 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 10. Stage 4, about 60 h (A), 69 h (B), and 64 h (C–F) development: (A, B) eye; (C) first antennae; (D) mouth parts; (E) lateral lobe of lower lip; (F) seta natatoriae. Scale bars: 25 mm.
Figure 1 in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 1. (A) Parthenogenetic egg; (B) gamogenetic egg taken from brood pouch; (C) remains of shed outer egg membrane of parthenogenetic egg; (D) parthenogenetic egg; (E) gamogenetic egg. Scale bars: (A–C) 50 mm; (D, E) 20 mm.
Figure 3. Stage 1 in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 3. Stage 1, (A,B) about 35 h development, (C,D) about 39 h development. (A) maxillae I and II; (B) rudiment of second antenna, ventral view; (C) general view of embryo, dorsal side; (D) mandibles and thoracic limbs. Scale bars: (A, B, D) 25 mm; (C) 50 mm.
Figure 9. Stage 4, about 60–64 h in Comparative investigation of the late embryogenesis of Leptodora kindtii (Focke, 1844) (Crustacea: Branchiopoda), with notes on types of embryonic development and larvae in Cladocera
Figure 9. Stage 4, about 60–64 h development: (A) general lateral view; (B) head and thorax; (C) abdomen and postabdomen; (D) carapace. Scale bar: 100 mm.
Adding Cytokines to In Vitro Human Culture Media to Improve Embryogenesis and Implantation
ClinicalTrials.gov study NCT02420886. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Effects of radiation from contaminated soil and moss in Fukushima on embryogenesis and egg hatching of the aphid Prociphilus oriens
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Oxygen consumption of juvenile brown trout, Salmo trutta, under varying thermal conditions during embryogenesis
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Temperature regime during embryogenesis alters subsequent behavioural phenotypes of juvenile brown trout
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Data from: The dynamic transmission of positional information in stau-mutants during Drosophila embryogenesis.
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Data from: A lineage-resolved molecular atlas of C. elegans embryogenesis at single-cell resolution
C. elegans is an animal with few cells, but a striking diversity of cell types. Here, we characterize the molecular basis for their specification by profiling the transcriptomes of 86,024 single embryonic cells. We identify 502 terminal and pre-terminal cell types, mapping most single cell transcriptomes to their exact position in C. elegans' invariant lineage. Using these annotations, we find that: 1) the correlation between a cell's lineage and its transcriptome increases from mid to late gastrulation, then falls dramatically as cells in the nervous system and pharynx adopt their terminal fates; 2) multilineage priming contributes to the differentiation of sister cells at dozens of lineage branches; and 3) most distinct lineages that produce the same anatomical cell type converge to a homogenous transcriptomic state.
The novel ciliogenesis regulator DYRK2 governs Hedgehog signaling during mouse embryogenesis
<p>Mammalian Hedgehog (Hh) signaling plays key roles in embryogenesis and uniquely requires primary cilia. Functional analyses of several ciliogenesis-related genes led to the discovery of the developmental diseases known as ciliopathies. Hence, identification of mammalian factors that regulate ciliogenesis can provide insight into the molecular mechanisms of embryogenesis and ciliopathy. Here, we demonstrate that DYRK2 acts as a novel mammalian ciliogenesis-related protein kinase. Loss of <i>Dyrk2</i> in mice causes suppression of Hh signaling and results in skeletal abnormalities during <i>in vivo</i> embryogenesis<i>.</i> Deletion of <i>Dyrk2</i> induces abnormal ciliary morphology and trafficking of Hh pathway components. Mechanistically, transcriptome analyses demonstrate down-regulation of <i>AurkA</i> and other disassembly genes following <i>Dyrk2</i> deletion. Taken together, the present study demonstrates for the first time that DYRK2 controls ciliogenesis and is necessary for Hh signaling during mammalian development.</p>
Data from: Drosophila embryogenesis scales uniformly across temperature in developmentally diverse species
Temperature affects both the timing and outcome of animal development, but the detailed effects of temperature on the progress of early development have been poorly characterized. To determine the impact of temperature on the order and timing of events during Drosophila melanogaster embryogenesis, we used time-lapse imaging to track the progress of embryos from shortly after egg laying through hatching at seven precisely maintained temperatures between 17.5°C and 32.5°C. We employed a combination of automated and manual annotation to determine when 36 milestones occurred in each embryo. D. melanogaster embryogenesis takes 33 hours at 17.5°C, and accelerates with increasing temperature to a low of 16 hours at 27.5°C, above which embryogenesis slows slightly. Remarkably, while the total time of embryogenesis varies over two fold, the relative timing of events from cellularization through hatching is constant across temperatures. To further explore the relationship between temperature and embryogenesis, we expanded our analysis to cover ten additional Drosophila species of varying climatic origins. Six of these species, like D. melanogaster, are of tropical origin, and embryogenesis time at different temperatures was similar for them all. D. mojavensis, a sub-tropical fly, develops slower than the tropical species at lower temperatures, while D. virilis, a temperate fly, exhibits slower development at all temperatures. The alpine sister species D. persimilis and D. pseudoobscura develop as rapidly as tropical flies at cooler temperatures, but exhibit diminished acceleration above 22.5°C and have drastically slowed development by 30°C. Despite ranging from 13 hours for D. erecta at 30°C to 46 hours for D. virilis at 17.5°C, the relative timing of events from cellularization through hatching is constant across all species and temperatures examined here, suggesting the existence of a previously unrecognized timer controlling the progress of embryogenesis that has been tuned by natural selection as each species diverges.
Shedding light on the embryogenesis and eye development of the troglophile cave spider Tegenaria pagana C. L. Koch, 1840 (Araneae: Agelenidae)
<p>Confocal images of <em>T. pagana</em> embryos, DAPI, HCR of RDGN network. </p>
Table 3 in Direct somatic embryogenesis of drought resistance pistachio (Pistacia vera L.) and expression analysis of somatic embryogenesis-related genes
<p><b>Table 3</b> Effect of different plant growth regulators on induction of somatic embryos in three pistachio genotypes' explants (immature zygotic embryos) under light condition.</p><table><tbody><tr><th></th><th>Induction of somatic embryos %</th><th></th><th>Number of embryos/explant</th><th></th></tr></tbody><tbody><tr><th></th><td>Ghazvini</td><td>Badami Riz</td><td>Sarakhs</td><td>Ghazvini</td><td>Badami Riz</td><td>Sarakhs</td></tr><tr><th>E1</th><td>23.22 ± 3.39 c</td><td>22.74 ± 1.46d</td><td>24.67 ± 1.45 c</td><td>4.3 ± 1.2b</td><td>12.33 ± 1.45b</td><td>8 ± 0.58b</td></tr><tr><th>E2</th><td>34.25 ± 0.92b</td><td>34.66 ± 0.22 c</td><td>35.31 ± 0.85b</td><td>12.33 ± 1.45a</td><td>45 ± 2.88 a</td><td>11.33 ± 1.45a</td></tr><tr><th>E6</th><td>43.75 ± 3.6ab</td><td>43.58 ± 0.87b</td><td>42.83 ± 2.80a</td><td>5.33 ± 0.88b</td><td>10 ± 1.15b</td><td>7.67 ± 0.88b</td></tr><tr><th>E11</th><td>50.00 ± 4.12a</td><td>49.95 ± 1.19a</td><td>48.67 ± 2.03a</td><td>4.67 ± 0.88b</td><td>9.33 ± 1.20b</td><td>6 ± 0.58b</td></tr></tbody></table><p>Data within a column followed by different letters indicate significantly differences according to the LSD test at p <.05.</p>
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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.