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.
13
datasets available to search
ShareScore release 0.9.0
Dataset results
13 results for “Themeda”
Herbarium specimen image of Themeda arguens (L.) Hack., part of the collection of Naturalis Biodiversity Center
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- Two PNG files containing segmented image overlays of the scanned herbarium sheet. The _all extension indicates that all labels, color charts and pieces of text have received a different color against a black background color. The _sel extension indicates that these elements are white if they're barcode labels, yellow if they're color charts and red if they're anything else.
Spatial, climate and ploidy factors drive genomic diversity and resilience in the widespread grass Themeda triandra
<p>This data set was used to assess the climate resilience of <i>Themeda triandra</i>, a foundational species and the most widespread plant in Australia, by assessing the relative contributions of spatial, environmental, and ploidy factors to contemporary genomic variation. Reduced-representation genome sequencing on 472 samples from 52 locations was used to test how the distribution of genomic variation, including ploidy polymorphism, supports adaptation to hotter and drier climates.</p>
FIGURE 4. A in Rediscovery and IUCN threat assessment of Themeda saxicola (Poaceae: Andropogoneae), an endemic grass from the Eastern Ghats, India
FIGURE 4. A. Estimation of habitat distribution from Google Earth. B. Google Earth Image of Raisili Hill.
FIGURE 2 in Rediscovery and IUCN threat assessment of Themeda saxicola (Poaceae: Andropogoneae), an endemic grass from the Eastern Ghats, India
FIGURE 2. Themeda saxicola Bor: A. Habit, B. Raceme; Involucral spikelet: C. Spikelet, D. Lower glume, E. Upper glume, F. Lower lemma, G. Upper lemma; Sessile spikelet: H. Spikelet, I. Lower glume, J. Upper glume K. Upper lemma; Pedicelled spikelet: L. Spikelet, M. Lower glume, N. Upper glume, O. Lower lemma.
Hybridisation and chloroplast capture between distinct Themeda triandra lineages in Australia
<p>Ecotypes are distinct populations within a species that are adapted to specific environmental conditions. Understanding how these ecotypes become established, and how they interact when reunited, is fundamental to elucidating how ecological adaptations are maintained. This study focuses on Themeda triandra, a dominant grassland species across Asia, Africa and Australia. It is the most widespread plant in Australia, where it has distinct ecotypes that are usually restricted to either wetter and cooler coastal regions or the drier and hotter interior. We generate a de novo reference genome for T. triandra and use whole genome sequencing for over 80 Themeda accessions to reconstruct the evolutionary history of T. triandra and related taxa. Organelle phylogenies confirm that Australia was colonised by T. triandra twice, with the division between ecotypes predating their arrival in Australia. The nuclear genome provides evidence of differences in the dominant ploidal level and gene-flow among the ecotypes. In northern Queensland there appears to be a hybrid zone between ecotypes with admixed nuclear genomes and shared chloroplast haplotypes. Conversely, in the cracking claypans of Western Australia, there is cytonuclear discordance with individuals possessing the coastal chloroplast and interior clade nuclear genome. This chloroplast capture is potentially a result of adaptive introgression, with selection detected in the rpoC2 gene which is associated with water use efficiency. The reason why T. triandra is the most widespread plant in Australia appears to be a result of distinct ecotypic genetic variation and genome duplication, with the importance of each depending on the geographic scale considered.</p>
FIGURE 1 in Lectotypification of Themeda strigosa (Poaceae, Panicoideae, Andropogoneae)
FIGURE 1. Lectotype of Anthistiria strigosa Buch.-Ham. ex Hook. f. (E00393919, © Royal Botanic Garden Edinburgh).
Spatial, climate and ploidy factors drive genomic diversity and resilience in the widespread grass Themeda triandra
Open the record for dataset details and reuse information.
Hybridisation and chloroplast capture between distinct Themeda triandra lineages in Australia
Open the record for dataset details and reuse information.
FIGURE 3 in Rediscovery and IUCN threat assessment of Themeda saxicola (Poaceae: Andropogoneae), an endemic grass from the Eastern Ghats, India
FIGURE 3. Distribution map of Themeda saxicola.
FIGURE 1. A in Rediscovery and IUCN threat assessment of Themeda saxicola (Poaceae: Andropogoneae), an endemic grass from the Eastern Ghats, India
FIGURE 1. A. Habitat of Themeda saxicola granite rock Hill
FIGURE 5. A in Rediscovery and IUCN threat assessment of Themeda saxicola (Poaceae: Andropogoneae), an endemic grass from the Eastern Ghats, India
FIGURE 5. A. Mining activity in Raisili Hill. B. Invasive alien species in Themeda saxicola habitat.
cpDNA sequecnes of Themeda triandra and Heteropogon contortus
<p>To investigate the historical continuity of grassy biomes in southwest China, we examined the biogeographies and evolutionary histories of two widespread and dominant C<sub>4</sub> grasses, <i>Themeda triandra</i> and <i>Heteropogon contortus</i>, in Yunnan and southern Sichuan provinces, using chloroplast DNA markers in combination with climate data.</p>
cpDNA sequecnes of Themeda triandra and Heteropogon contortus
Open the record for dataset details and reuse information.
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.