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322
datasets available to search
ShareScore release 0.7.1
Dataset results
322 results for “Helianthus”
Helianthus microcephalus (Asteraceae) - whole plant - in flower - general view
Image of Helianthus microcephalus (Asteraceae) - whole plant - in flower - general view
Helianthus microcephalus (Asteraceae) - stem - showing leaf bases
Image of Helianthus microcephalus (Asteraceae) - stem - showing leaf bases
Helianthus microcephalus (Asteraceae) - inflorescence - whole - unspecified
Image of Helianthus microcephalus (Asteraceae) - inflorescence - whole - unspecified
Helianthus microcephalus (Asteraceae) - leaf - basal or on lower stem
Image of Helianthus microcephalus (Asteraceae) - leaf - basal or on lower stem
Helianthus microcephalus (Asteraceae) - inflorescence - whole - unspecified
Image of Helianthus microcephalus (Asteraceae) - inflorescence - whole - unspecified
Hybrid evolution repeats itself across environmental contexts in Texas sunflowers (Helianthus)
<p>To what extent is evolution repeatable? Little is known about whether the evolution of hybrids is more (or less) repeatable than non-hybrids. We used field experimental evolution in annual sunflowers (<em>Helianthus</em>) in Texas to ask the extent to which hybrid evolution is repeatable across environments compared to non-hybrid controls. We created hybrids between <em>Helianthus annuus</em> (L.) and <em>H. debilis</em> (Nutt.) and grew plots of both hybrids and non-hybrid controls through eight generations at three sites in Texas. We collected seeds from each generation and grew each generation × treatment × home site combination at two final common gardens. We estimated the strength and direction of evolution in terms of fitness and 24 traits, tested for repeated versus non-repeated evolution, and assessed overall phenotypic evolution across lineages and in relation to a locally adapted phenotype. Hybrids consistently evolved higher fitness over time while controls did not, though trait evolution varied in strength across home sites. Repeated evolution was more evident in hybrids versus non-hybrid controls, and hybrid evolution was often in the direction of the locally adapted phenotype. Our findings have implications for both the nature of repeatability in evolution and the contribution of hybridization to evolution across environmental contexts.</p>
Helianthus tuberosus L. (BR0000011715931)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000009413337)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000012189687)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000009723153)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000011760696)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000011716532)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000005410187)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000011562085)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000011562054)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000012189021)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000024747547)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000024747875)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000012102211)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Helianthus tuberosus L. (BR0000012290475)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
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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.
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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.