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.
57
datasets available to search
ShareScore release 0.9.0
Dataset results
57 results for “Ctenomys”
Figura 3 in Primer Ctenomys provincia registro de coloración melánica en famosus (Rodentia: Ctenomyidae) en la de La Rioja, Argentina
Figura 3. Fotografías del ejemplar de Ctenomys famosus con patrón de coloración melánico. A) Vista dorsal. B) Vista ventral. C) Individuo en el ambiente natural, donde se ve el contraste de los colores del pelaje y del suelo. Figure 3. Photographs of the specimen of Ctenomys famosus with melanic color pattern. A) Dorsal view. B) Ventral view. C) Individual in the natural environment, where the contrast of the colors of the pelage and the soil is seen.
Figura 2 in Primer Ctenomys provincia registro de coloración melánica en famosus (Rodentia: Ctenomyidae) en la de La Rioja, Argentina
Figura 2. Ubicación geográfica del sitio de muestreo (ícono naranja) donde se capturó ejemplar melánico de Ctenomys famosus. Figure 2. Geographic location of the sampling site (orange icon) where the melanic specimen of Ctenomys famosus was captured.
Figura 1 in Primer Ctenomys provincia registro de coloración melánica en famosus (Rodentia: Ctenomyidae) en la de La Rioja, Argentina
Figura 1. Fotografías de Ctenomys famosus con coloración agoutí característica de la especie. a) Vista dorsal. b) Vista ventral. c) Cachorro capturado junto a hembra Melanica. d) Fotografía del área de muestreo, se observa características ambientales de la zona. Figure 1. Photographs of Ctenomys famosus with agoutí coloration characteristic of the species. a) Dorsal view. b) Ventral view. c) Puppy captured together with the melanic female. d) Photograph of the sampling area, environmental characteristics of the area are observed.
FIGURE 3 in Reassessing the causal connection between satDNA dynamics and chromosomal evolution in Ctenomys (Rodentia, Ctenomyidae): Unveiling the overlooked importance of the Y chromosome
FIGURE 3 Ancestral RPCS copy number reconstruction. RPCS copy number was mapped along the mtDNA phylogeny using the phytools function anc.ML, for males and females of the Ctenomys Corrientes group separately. The projection of the reconstruction onto the edges of the tree was made with the function contMap. RPCS copy number is expressed as thousands of copies. The scale of the tree is expressed in substitutions per site. Letters A–D correspond to the four main clades of the group.
FIGURE 2 in Reassessing the causal connection between satDNA dynamics and chromosomal evolution in Ctenomys (Rodentia, Ctenomyidae): Unveiling the overlooked importance of the Y chromosome
FIGURE 2 Geographic distribution of mean RPCS copy number. The Corrientes group lineages are surrounded by dashed lines. Locality numbers are: 1 – San Alonso, 2 – Loreto, 3 – Contreras_Cué, 4 – Estancia La Tacuarita, 5 – Saladas Sur, 6 – Saladas, 7 – Santa Rosa, 8 – San Roque, 9 – Estancia San Luis, 10 – Pago Alegre, 11 – Mbarigüí, 12 – Paraje Angostura, 13 – Goya, 14 – Chavarría, 15 – Colonia 3 de abril, 16 – Rincón de Ambrosio.
FIGURE 1 in Reassessing the causal connection between satDNA dynamics and chromosomal evolution in Ctenomys (Rodentia, Ctenomyidae): Unveiling the overlooked importance of the Y chromosome
FIGURE 1 Differences in RPCS copy number in males and females. Scatter plot showing differences in RPCS copy numbers between males and females of the Ctenomys Corrientes group, expressed as thousands of copies. Clades A-D correspond to the four different clades of the phylogeny (figs 3 and 4). A smoothing function was applied with the package ggplot2.
FIGURE 4 in Reassessing the causal connection between satDNA dynamics and chromosomal evolution in Ctenomys (Rodentia, Ctenomyidae): Unveiling the overlooked importance of the Y chromosome
FIGURE 4 Ancestral reconstruction of diploid numbers (2n) and main RPCS reductions and amplifications in the Ctenomys Corrientes group. Ancestral diploid numbers were inferred with the ChromEvol model implemented in RevBayes, over the mtDNA Bayesian phylogeny of the Corrientes group. Numbers in internal nodes/ terminals represent inferred/observed 2n. Colored circles depict 2n (size) and posterior probability of the inferred value (color). Red and green branches depict significant reductions and amplifications in diploid numbers, respectively. Smaller equal-sized black circles show well-supported nodes (posterior probability> 0.75). Black arrowheads denote a marked increase/decrease in RPCS copy numbers (inferred from females). The scale bar is expressed in substitutions per site.
Figure 7 in Intra- and interspecific skull variation in two sister species of the subterranean rodent genus Ctenomys (Rodentia, Ctenomyidae): coupling geometric morphometrics and chromosomal polymorphism
Figure 7. Phenogram computed from the Mahalanobis distances between chromosomal groups for Ctenomys torquatus from Brazil (2n = 40, 44, and 46), C. torquatus from Uruguay (2n = 44u), and Ctenomys pearsoni (2n = 66 and 70). Tree made by using the neighbour-joining method with branch lengths proportional to morphological distances. Scale bar: 4 units.
Figure 4 in Intra- and interspecific skull variation in two sister species of the subterranean rodent genus Ctenomys (Rodentia, Ctenomyidae): coupling geometric morphometrics and chromosomal polymorphism
Figure 4. Kernel density estimates on principal components (PC) 1 and 2 of shape variables and convex hulls for specimens of Ctenomys torquatus (•) and Ctenomys pearsoni (Δ). Variance percentages are given on the y axis. Dark areas indicate higher density regions.
Figure 6 in Intra- and interspecific skull variation in two sister species of the subterranean rodent genus Ctenomys (Rodentia, Ctenomyidae): coupling geometric morphometrics and chromosomal polymorphism
Figure 6. Plot of the six chromosomal populations for the first two axes of the linear discriminant analysis (LDA) for three integrated views. Ctenomys torquatus, 2n = 40, 44, 44u, and 46; Ctenomys pearsoni, 2n = 66 and 70.
Figure 3 in Intra- and interspecific skull variation in two sister species of the subterranean rodent genus Ctenomys (Rodentia, Ctenomyidae): coupling geometric morphometrics and chromosomal polymorphism
Figure 3. Box-and-whisker plots showing the distribution of centroid size for the lateral view of the skull of two Ctenomys torquatus and Ctenomys pearsoni specimens, and for each sex. Upper and lower hinges correspond to the first and third quartiles, and whiskers correspond to the 95% confidence interval.
Figure 2 in Intra- and interspecific skull variation in two sister species of the subterranean rodent genus Ctenomys (Rodentia, Ctenomyidae): coupling geometric morphometrics and chromosomal polymorphism
Figure 2. Ctenomys torquatus skull, with indication of morphological landmarks for the dorsal (A), ventral (B), and lateral (C) views of the cranium. Appendix 2 gives the key to the landmarks. Scale bar: 1 cm.
Ctenomys fulvus 769
Espécimen de la Colección del Área Zoología Vertebrados del Museo Nacional de Historia Natural - Ctenomys fulvus 769 Source: Objaverse 1.0 / Sketchfab
Ctenomys fulvus 774
Espécimen de la Colección del Área Zoología Vertebrados del Museo Nacional de Historia Natural - Ctenomys fulvus 774 Source: Objaverse 1.0 / Sketchfab
Ctenomys fulvus 1112
Espécimen de la Colección del Área Zoología Vertebrados del Museo Nacional de Historia Natural - Ctenomys fulvus 1112 Source: Objaverse 1.0 / Sketchfab
Ctenomys fulvus 1113
Espécimen de la Colección del Área Zoología Vertebrados del Museo Nacional de Historia Natural - Ctenomys fulvus 1113 Source: Objaverse 1.0 / Sketchfab
Cráneo de Ctenomys magellanicus (Tucu-tucu)
Cráneo de *Ctenomys magellanicus* de la colección comparativa del [CADIC/CONICET](http://http://www.cadic-conicet.gob.ar/). Escaneado con escaner Smart Range Vision. Escaneado por B. Colasurdo y F. Santiago. Source: Objaverse 1.0 / Sketchfab
Data from: The role of chromosomal rearrangements and geographical barriers in the divergence of lineages in a South American subterranean rodent (Rodentia: Ctenomyidae: Ctenomys minutus)
Identifying factors and the extent of their roles in the differentiation of populations is of great importance for understanding the evolutionary process in which a species is involved. Ctenomys minutus is a highly karyotype- polymorphic subterranean rodent, with diploid numbers ranging from 42 to 50 and autosomal arm numbers ranging from 68 to 80, comprising a total of 45 karyotypes described so far. This species inhabits the southern Brazilian coastal plain, which has a complex geological history, with several potential geographical barriers acting on different time scales. We assessed the geographical genetic structure of C. minutus, examining 340 individuals over the entire distributional range and using information from chromosomal rearrangements, mitochondrial DNA (mtDNA) sequences, and 14 microsatellite loci. The mtDNA results revealed 7 main haplogroups, with the most recent common ancestors dating from the Pleistocene, whereas clustering methods defined 12 populations. Some boundaries of mtDNA haplogroups and population clusters can be associated with potential geographical barriers to gene flow. The isolation by distance pattern also plays an important role in fine-scale genetic differentiation, which is strengthened by the narrowness of the coastal plain and by common features of subterranean rodents (i.e., small fragmented populations and low dispersal rates), which limit gene flow among populations. A step-by-step mechanism of chromosomal evolution can be suggested for this species, mainly associated with the metapopulation structure, genetic drift, and the geographical features of the southern Brazilian coastal plain. However, chromosomal variation plays no or very little role in the diversification of C. minutus populations.
FIGURES 11–14. Ischilinema baldoi gen. n in First record of Viannaiidae (Nematoda: Trichostrongylina) in fossorial rodents (Ctenomys spp.) from Central Argentina, with description of a new genus and species
FIGURES 11–14. Ischilinema baldoi gen. n. sp. n. 11–12, male, caudal bursa, 11, bursa spread out, ventral view, 12, bursa folded, left lateral view, right branch of dorsal ray omitted. 13, male, spicules in situ, showing spicular alae. 14, female, posterior extremity, left lateral view. Abbreviations: 2r-8r, right rays 2 to 8; 2l-8l: left rays 2 to 8.
FIGURES 1–10. Ischilinema baldoi gen. n in First record of Viannaiidae (Nematoda: Trichostrongylina) in fossorial rodents (Ctenomys spp.) from Central Argentina, with description of a new genus and species
FIGURES 1–10. Ischilinema baldoi gen. n. sp. n. 1, female, anterior extremity, right lateral view. 2, female, head, apical view. 3–11, synlophe in transverse sections of the body: 3, 4, at oesophago-intestinal junction, 3, male, 4, female; 5–6, at mid-body, 5, male, 6, female; 7–10, within distal third of body length, 7, male at 500 µ before caudal bursa, 8, female at 500 µ from posterior extremity, 9, male at beginning of spicules, 10, male, at 100 µ before caudal bursa. Abbreviations: R, right, V, ventral. All sections oriented as in Figure 3.
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.