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650
datasets available to search
ShareScore release 0.7.1
Dataset results
650 results for “angiosperm”
Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - inflorescence - lateral view of flower
Image of Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - inflorescence - lateral view of flower
Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - inflorescence - ventral view of flower + perianth
Image of Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - inflorescence - ventral view of flower + perianth
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - inflorescence - whole - unspecified
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - inflorescence - whole - unspecified
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - inflorescence - lateral view of flower
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - inflorescence - lateral view of flower
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - inflorescence - whole - unspecified
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - inflorescence - whole - unspecified
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - whole plant - in flower - general view
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - whole plant - in flower - general view
Fraxinus americana (Oleaceae) - woody angiosperms - twig - winter overall
Image of Fraxinus americana (Oleaceae) - woody angiosperms - twig - winter overall
Fraxinus americana (Oleaceae) - woody angiosperms - bark - of a large tree
Image of Fraxinus americana (Oleaceae) - woody angiosperms - bark - of a large tree
Fraxinus americana (Oleaceae) - woody angiosperms - fruit - immature
Image of Fraxinus americana (Oleaceae) - woody angiosperms - fruit - immature
Fraxinus americana (Oleaceae) - woody angiosperms - fruit - immature
Image of Fraxinus americana (Oleaceae) - woody angiosperms - fruit - immature
Fraxinus americana (Oleaceae) - woody angiosperms - fruit - immature
Image of Fraxinus americana (Oleaceae) - woody angiosperms - fruit - immature
Fraxinus americana (Oleaceae) - woody angiosperms - whole tree (or vine) - general
Image of Fraxinus americana (Oleaceae) - woody angiosperms - whole tree (or vine) - general
Fraxinus americana (Oleaceae) - woody angiosperms - fruit - as borne on the plant
Image of Fraxinus americana (Oleaceae) - woody angiosperms - fruit - as borne on the plant
High rates of evolution preceded shifts to sex-biased gene expression in Leucadendron, the most sexually dimorphic angiosperms
<p>Differences between males and females are usually more subtle in dioecious plants than animals, but strong sexual dimorphism has evolved convergently in the South African Cape plant genus <i>Leucadendron</i>. Such sexual dimorphism in leaf size is expected largely to be due to differential gene expression between the sexes. We compared patterns of gene expression in leaves among ten <i>Leucadendron </i>species across the genus. Surprisingly, we found no positive association between sexual dimorphism in morphology and the number or the percentage of sex-biased genes. Sex bias in most sex-biased genes evolved recently and was species-specific. We compared rates of evolutionary change in expression for genes that were sex-biased in one species but unbiased in others and found that sex-biased genes evolved faster in expression than un-biased genes. This greater rate of expression evolution of sex-biased genes, also documented in animals, might suggest the possible role of sexual selection in the evolution of gene expression. However, our comparative analysis clearly indicates that the more rapid rate of expression evolution of sex-biased genes predated the origin of bias, and shifts towards bias were depleted in signatures of adaptation. Our results are thus more consistent with the view that sex bias is simply freer to evolve in genes less subject to constraints in expression level.</p>
A nuclear phylogenomic study of the angiosperm order Myrtales, exploring the potential and limitations of the universal Angiosperms353 probe set
<p>The premise of this study is to further advance the understanding of the species-rich, economically and ecologically important Myrtales, an angiosperm order in the rosid clade comprising nine families, approximately 400 genera and almost 14000 species occurring on all continents (except Antarctica). The potential of High Throughput Sequencing (HTS) and target enrichment with the Angiosperms353 probe kit is evaluated on a sample of 485 species in 305 genera (76% of all genera in the order). Results provide technical considerations for processing HTS data and the most comprehensive phylogenetic hypothesis for the order to date. Relationships at all ranks such as the relationship of the early diverging families, often reflect previous studies, but gene conflict is evident, and relationships previously found to be uncertain often remain so. HTS and the Angiosperms353 probe kit are powerful tools for phylogenomic analysis, but better understanding of the genetic data available is required to enable selection of genes and gene trees that account for incomplete lineage sorting and hybridisation events. </p>
Global distribution and evolutionary transitions of floral symmetry in angiosperms
<p><span>Floral symmetry plays a crucial role in plant-pollinator interactions and has remarkable impacts on angiosperm evolution. However, the spatiotemporal patterns in floral symmetry and drivers of these patterns </span><span>remain poorly known</span><span>. Here, using global distributions and </span><span>floral symmetry data </span><span>of 280,140 angiosperm species, we presented the global geographic and evolutionary patterns of floral symmetry </span><span>composition and demonstrated the climatic drivers of these patterns</span><span>. We found that the frequency of actinomorphic (radial) species increased with latitude, while that of </span><span>zygomorphic</span><span> (</span><span>bilateral</span><span>) species decreased</span><span>.</span><span> Solar radiation, present-day temperature and Quaternary temperature change explained the geographic variation in floral symmetry. Evolutionary transitions from actinomorphy to</span><span> zygomorphy dominated floral symmetry evolution, although the rate of this transition decreased through the Cenozoic associated with decreasing </span><span>paleo-temperature</span><span>. </span><span>Our study </span><span>provides novel insights into the ecology and evolution of angiosperm floral symmetry and suggests that climate change may influence species distributions via its effect on floral symmetry.</span></p>
Text-fig. 1. Map of Primorye region, Russia. a – Razdolnaya coal basin; b – Partizansk coal basin. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 1. Map of Primorye region, Russia. a – Razdolnaya coal basin; b – Partizansk coal basin.
Text-fig. 6. Cathodoluminescence (CL) images of selected zircons from sample 160/4. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 6. Cathodoluminescence (CL) images of selected zircons from sample 160/4.
Text-fig. 7. U-Pb concordia diagram for zircons from tuff sample 160/4. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 7. U-Pb concordia diagram for zircons from tuff sample 160/4.
Text-fig. 13. Dispersed platanoid cuticle. a: LM; b: SEM, upper surface. s – stoma; b – hair base. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 13. Dispersed platanoid cuticle. a: LM; b: SEM, upper surface. s – stoma; b – hair base.
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.