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.
3,465
datasets available to search
ShareScore release 0.9.0
Dataset results
3,465 results for “Embryo”
Fig. 2 in An Investigation Of Embryo And Eggshell Development In Trichuris Suis (Nematoda, Trichuridae0 Under Laboratory Conditions
Fig. 2. Eggs of Trichuris suis at blastomere cleavage stage of development: а — sampled from nematode gonads, 15th day of cultivation (×400); b — sampled from faeces of infected pigs, 10th day of cultivation (×500).
Fig. 4 in An Investigation Of Embryo And Eggshell Development In Trichuris Suis (Nematoda, Trichuridae0 Under Laboratory Conditions
Fig. 4. Eggs of Trichuris suis at the stage of developing larvae: а — sampled from nematode gonads, 30th day of cultivation (×300); b — sampled from faeces of infected pigs, 20th day of cultivation (×450).
Dataset for "The first mitotic division of human embryos is highly error prone"
<p>Data for The first mitotic division of human embryos is highly error prone. [Dataset]<br> Research output available from https://omero.warwick.ac.uk/webclient/?show=project-8301<br> Details for how to access the dataset are available on the public data page: https://warwick.ac.uk/fac/sci/med/research/biomedical/facilities/camdu/publicdata/</p> <p>The dataset contains movies of human embryos consented to research progressing through the first two embryonic mitoses. The chromosomes have been visualised using SiR-DNA dye and imaged using a deltavision widefield microscope.The dataset consists only of time lapse imaging movies.</p>
Reproductive compensation and selection among viable embryos drive the evolution of polyembryony
<p>Simple polyembryony -- where one gametophyte produces multiple embryos with different sires but the same maternal haplotype -- is common among vascular plants. We develop an infinite-site, forward population genetics model showing that together polyembryony's two benefits -- "reproductive compensation" achieved by providing a backup for inviable embryos, and the opportunity to favor the fitter of surviving embryos, can favor its evolution. Our model tests how these factors can favor the evolution of polyembryony, and how these underlying benefits of polyembryony shape the genetic load under a range of biological parameters. While these two benefits are difficult to disentangle in nature, we construct variant models of polyembryony that either only include or only exclude the opportunity for reproductive compensation. We find that reproductive compensation strongly favors the evolution of polyembryony, and that polyembryony is favored much more weekly in its absence, suggesting that the benefit of a backup embryo is a major force favoring polyembryony. Remarkably we find nearly identical results in cases in which mutations impact either embryo or post-embryonic fitness (no pleiotropy), and in cases in which mutations have identical fitness effects embryo or post-embryonic fitness (extreme pleiotropy). Finally, we find that the consequences of polyembryony depends on its function – polyembryony results in a decrease in mean embryonic fitness when acting as a mechanism of embryo compensation, and ultimately increases mean embryonic fitness when we exclude this potential benefit.</p>
Zebrafish Embryos Imaging Data for Virtual Orientation Tools Article
<p>The zebrafish embryos were imaged in a 96-well plate using an Acquifer IM (Bruker, Heidelberg), an automated fluorescence widefield screening microscope, and a Nikon objective</p>
Responsiveness to cold snaps by turtle embryos depends on exposure timing and duration
<p>Characterizing how organisms respond to transient temperatures may further our understanding of their susceptibility to climate change. In animals with temperature-dependent sex determination (TSD), unusual transient temperatures during incubation result in sex bias and may therefore impair population breeding capacity. Past studies in the red-eared slider turtle (<em>Trachemys scripta</em>) have demonstrated that the timing and duration of heat exposure ("heat waves") can have major implications for the response of genes involved in gonadal development and the production of female hatchlings. Yet, no study has considered how the response of these genes to transient cold exposure ("cold snaps") may affect gene expression and influence the resulting production of males.</p> <p>We investigated how cold snap timing and duration affect gonadal gene expression in <em>T. scripta</em> embryos. Additionally, we explored the effect of early cold snap exposure duration on resulting hatchling sex ratios. Results show that responsiveness to cool temperatures changes rapidly across development, such that genes that responded to cold snaps when exposure began on incubation day 14 responded differently when cold exposure occurred just 4 to 8 days later. The sex ratio experiment revealed that embryos experiencing an early cold snap also require a long exposure (> 20 days) before most commit to testis development, further suggesting that early development under warm temperatures may lower their sensitivity to later cold snaps. These results highlight how individual responses to incubation temperature can change rapidly across development in turtles and have important effects on sex ratios. We discuss how variation in responsiveness to transient temperatures might help maintain mixed-sex ratios under variable thermal conditions in nature and may permit adaptive population responses to climate change.</p>
Fig. 1 in Survival Of Embryos And Larvae Of The Rainbow Trout (Oncorhynchus Mykiss, Walbaum, 1792) Under Influence Of Optical Radiation At Various Temperature Regimes
Fig. 1. Linear dependencies of the probit (logit) effect of the death of rainbow trout larvae in vitro from the logarithm of days of fasting for various types of optical radiation at a temperature of 12 (a), 11 (b), 10 (c), 9 (d), 8(e) ° C.
Fig. 7 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 7. (A) The relationship between total gill area (cm2) and Relative Opening of the spiracle. (B) Linear regression of the mass-specific gill area (cm2 g-1) and body surface area (cm2) of different potamotrygonid embryos: upsidedown triangle - Plesiotrygon iwamae; star - Paratrygon aiereba; diamond - Potamotrygon motoro (from Negro River); dot - Potamotrygon motoro (from Solimões River); triangle - Potamotrygon orbignyi; square - cururu ray Potamotrygon sp.
Fig. 6 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 6. The two main axes of a principal component analysis based on total gill area, mass-specific gill area, body mass, total length, Anatomical Diffusion Factor and Relative Opening of Spiracule (ROSp) in the different potamotrygonid embryos: black triangle - Plesiotrygon iwamae; open diamond - Paratrygon aiereba; circle - Potamotrygon motoro (from Negro River); open triangle - Potamotrygon motoro (from Solimões River); black square - Potamotrygon orbignyi; open square - Potamotrygon sp. (cururu ray).
Fig. 5 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 5. Triplot of log (Anatomic Diffusion Factor) versus log(water/blood barrier thickness) versus log(mass-specific gill area) of the potamotrygonid embryos.
Fig. 3 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 3. Mass-specific gill area of the anterior and posterior hemibranchs of the gill arches in different potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba.
Fig. 2 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 2. Total superficial gill area of the anterior and posterior hemibranchs of the gill arches in different potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba.
Fig. 1 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 1. The potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) cururu ray Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba. Scale bars= 1 cm.
Fig 1 in Determination of limited histotrophy as the reproductive mode in Mustelus schmitti Springer, 1939 (Chondrichthyes: Triakidae): analysis of intrauterine growth of embryos
Fig 1. Mean embryo total length and standard deviation as a function of the ordinal day of the year considering the two consecutive years (2006 and 2007) for Mustelus schmitti embryos. Dashed line represents the linear model adjusted to the individual data, continuous line is for the Gompertz model and the pointed line represents the Von Bertalanffy growth curve.
Fig 3 in Determination of limited histotrophy as the reproductive mode in Mustelus schmitti Springer, 1939 (Chondrichthyes: Triakidae): analysis of intrauterine growth of embryos
Fig 3. Relationship between total dry weight (g) (Mustelus schmitti embryos and its yolk sac) and time (ordinal days), along 2006 and 2007. The bottom and top of the box are the first and third quartiles, and the band inside is the median, the ends of the whiskers represent the range of the distribution. This graphic shows a clear increase in mass that has been associated with matrotrophy.
Fig 2 in Determination of limited histotrophy as the reproductive mode in Mustelus schmitti Springer, 1939 (Chondrichthyes: Triakidae): analysis of intrauterine growth of embryos
Fig 2. Mean yolk mass and standard deviation as a function of the ordinal day of the year considering the two consecutive years (2006 and 2007) for Mustelus schmitti embryos. Using the same y axis values the continuous line represents the logistic curve adjusted for presence/absence of yolk sac, the probability of an embryo having external yolk sac is given by Yt=1/(1+e(-13.749 + 0.072*t)) for 2006 and Yt=1/(1+e(-10.472 + 0.054*t)) for 2007.
Figure 4 in Use of melatonin as an inhibitor of apoptotic process for cryopreservation of zebrafish (Danio rerio) embryos
Figure 4. Representative images of zebrafish (Danio rerio) embryos showing reactive oxygen species (ROS) formation (A-D) and DNA fragmentation (E-H) following vitrification for the control group and vitrified treatments with 0, 1 µM and 1 mM melatonin respectively. Arrows and arrow heads point to tissues affected in the body axis and those in close proximity to the yolk respectively.
Figure 3 in Use of melatonin as an inhibitor of apoptotic process for cryopreservation of zebrafish (Danio rerio) embryos
Figure 3. Percentage area of zebrafish (Danio rerio) embryos affected by reactive oxygen species (ROS) formation and DNA fragmentation after vitrification for the control group and vitrified treatments with 0, 1 µM and 1 mM melatonin respectively. Bars with different letter within the same assay were significantly different from one another (P <0.05).
Figure 2 in Use of melatonin as an inhibitor of apoptotic process for cryopreservation of zebrafish (Danio rerio) embryos
Figure 2. Bax, bcl-2 and caspase-3 mRNA expression levels in zebrafish (Danio rerio) embryos for the control group and vitrified treatments with 0, 1 µM and 1 mM melatonin respectively obtained by the 2-∆∆CT method. Boxes with same letter are not significantly different from one another (P> 0.05).
Figure 1 in Use of melatonin as an inhibitor of apoptotic process for cryopreservation of zebrafish (Danio rerio) embryos
Figure 1. Representative scanning electron micrographs of vitrified and non-vitrified zebrafish (Danio rerio) embryos. (A) Control group; (B-D) Vitrified with 0, 1 µM and 1 mM melatonin respectively. Arrows, arrow head and asterisk point to invaginations and perforations, rupture of the vitelline membrane and wrinkling of the epidermis respectively.
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.