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16 results for “bearded dragon”
Fig. 3 in Cryptosporidium cf. avium in an inland-bearded dragon (Pogona vitticeps) - A case report and review of the literature
Fig. 3. Relationship of the novel Cryptosporidium cf. avium taxa (in bold) from the faeces of the inland-bearded dragon with representative Cryptosporidium sequences, established based on a phylogenetic analysis of sequence data from a portion of the actin gene employing the neighbour-joining distance method. Branch supports are represented by neighbour-joining bootstrap percentages. C. andersoni was used as an outgroup.
Fig. 2 in Cryptosporidium cf. avium in an inland-bearded dragon (Pogona vitticeps) - A case report and review of the literature
Fig. 2. Relationship of the novel Cryptosporidium cf. avium taxa (in bold) from the faeces of the inland-bearded dragon with representative Cryptosporidium sequences, established based on a phylogenetic analysis of sequence data from a portion of the small subunit of nuclear ribosomal RNA gene (SSU) employing the neighbourjoining distance method. Branch supports are represented by neighbour-joining bootstrap percentages. C. andersoni was used as an outgroup.
Fig. 1 in Cryptosporidium cf. avium in an inland-bearded dragon (Pogona vitticeps) - A case report and review of the literature
Fig. 1. Sequence alignment of a partial region (124 bp) of SSU for selected Cryptosporidium sp. to verify the identity of the green iguana sequence from the Netherlands HM069184 (Kik et al., 2011) and the sequence from Cryptosporidium from an inland bearded dragon from Scotland MT074295 (Lewis et al., 2020). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
- *4K* Video - Bearded Dragon (Pogona vitticeps) head and brain 3D rendering
<p>4K movie displaying the 3D rendering of the head and both the morphological features and spatial organization of the main encephalic subdivisions of the Bearded Dragon lizard. The brain reconstruction was obtained from a microCT scan of a iodine-stained specimen through manual segmentation using the software Amira 5.5.0.</p> <p>Other videos can be found <strong><a href="https://zenodo.org/search?page=1&size=20&q=keywords:%22squamate%20brain%22">here</a></strong>.</p> <p><em>If you are interested in reptile brain evolution and behavior, please, have a look to our recent publication:</em></p> <p><a href="https://www.nature.com/articles/s41467-019-13405-w"><em><strong>"Comparative analysis of squamate brains unveils multi-level variation in cerebellar architecture associated with locomotor specialization"</strong></em></a></p> <p><strong>Simone Macrì, Yoland Savriama, Imran Khan & Nicolas Di-Poï</strong></p> <p><em>Nature Communications</em> <strong>10, </strong>5560 (2019)</p> <p> </p> <p>For any inquiries or additional information, please, refer to the contacts provided in the <strong><a href="https://www.nature.com/articles/s41467-019-13405-w">article</a></strong>.</p>
Bearded Dragon (Pogona vitticeps) lizard brain illustration
<p>3D model of the Bearded Dragon lizard brain highlighting the anatomy and the spatial arrangement of its major subdivisions.</p> <p>The brain reconstruction was obtained from a microCT scan of a iodine-stained specimen through manual segmentation using the software Amira 5.5.0.</p> <p>Other illustrations can be found <strong><a href="https://zenodo.org/search?page=1&size=20&q=keywords:%22squamate%20brain%22">here</a></strong>.</p> <p><em>If you are interested in reptile brain evolution and behavior, please, have a look to our recent publication:</em></p> <p><a href="https://www.nature.com/articles/s41467-019-13405-w"><em><strong>"Comparative analysis of squamate brains unveils multi-level variation in cerebellar architecture associated with locomotor specialization"</strong></em></a></p> <p><strong>Simone Macrì, Yoland Savriama, Imran Khan & Nicolas Di-Poï</strong></p> <p><em>Nature Communications</em> <strong>10, </strong>5560 (2019)</p> <p> </p> <p><em>Check out also our *4K* video collection of various snake and lizard 3D brains:</em></p> <p><strong><a href="https://www.youtube.com/playlist?list=PLgx4vtT32C8hqxG_icKiuXGtZVLVX-oG1">Snake and Lizard brain reconstructions video collection</a></strong></p> <p> </p> <p>For any inquiries or additional information, please, refer to the contacts provided in the <strong><a href="https://www.nature.com/articles/s41467-019-13405-w">article</a></strong>.</p>
Data from: Colour change on different body regions provides thermal and signalling advantages in bearded dragon lizards
Many terrestrial ectotherms are capable of rapid colour change, yet it is unclear how these animals accommodate the multiple functions of colour, particularly camouflage, communication and thermoregulation, especially when functions require very different colours. Thermal benefits of colour change depend on an animal's absorptance of solar energy in both UV–visible (300–700 nm) and near-infrared (NIR; 700–2600 nm) wavelengths, yet colour research has focused almost exclusively on the former. Here, we show that wild-caught bearded dragon lizards (Pogona vitticeps) exhibit substantial UV–visible and NIR skin reflectance change in response to temperature for dorsal but not ventral (throat and upper chest) body regions. By contrast, lizards showed the greatest temperature-independent colour change on the beard and upper chest during social interactions and as a result of circadian colour change. Biophysical simulations of heat transfer predicted that the maximum temperature-dependent change in dorsal reflectivity could reduce the time taken to reach active body temperature by an average of 22 min per active day, saving 85 h of basking time throughout the activity season. Our results confirm that colour change may serve a thermoregulatory function, and competing thermoregulation and signalling requirements may be met by partitioning colour change to different body regions in different circumstances.
Antemortem diagnostic results for six bearded dragons (<em>Pogona vitticeps</em>) experimentally exposed to <em>Nannizziopsis guarroi</em>
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Data from: Colour change on different body regions provides thermal and signalling advantages in bearded dragon lizards
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Rapid beard darkening predicts contest outcome, not copulation success, in bearded dragon lizards
<p><span><span><span><span><span><span><span><span><span><span><span>Rapid colour change is widespread in animals and allows them to respond dynamically to the physical and social environment. However, few studies have examined the information conveyed by dynamic colour signals in different social contexts, such as courtship and rivalry contests. Furthermore, dynamic colour change on different body regions may be subject to different selection pressures and therefore serve different functions. We tested whether male colour or colour change predict contest outcome in male-male interactions, or the likelihood of copulation attempts in male-female interactions in the central bearded dragon, <i>Pogona vitticeps</i>. The extent of beard darkening strongly predicted contest outcome, but neither colour (beard, dorsal) nor colour change predicted copulation attempts. <span><span>Dorsal colour showed little consistent change and did not predict contest outcome or copulation attempts. </span></span>Previous work shows that dorsal but not beard colour change occurs in response to both background colour and temperature in the laboratory and in the wild. <a name="_Hlk33037262">Taken together, these results indicate that dynamic colour change in bearded dragons varies in relation to social context and can serve different functions depending on the body region.</a> Our data add to the growing appreciation of how rapid colour change enables animals to accommodate the multiple functions of colour, including communication to different receivers, camouflage and thermoregulation.</span></span></span></span></span></span></span></span></span></span></span></p>
Fig. 4 in Cryptosporidium cf. avium in an inland-bearded dragon (Pogona vitticeps) - A case report and review of the literature
Fig. 4. Relationship of the novel Cryptosporidium cf. avium taxa (in bold) from the faeces of the inland-bearded dragon with representative Cryptosporidium sequences, established based on a phylogenetic analysis of sequence data from concatenated SSU and actin genes employing the neighbour-joining distance method. Branch supports are represented by neighbour-joining bootstrap percentages. C. andersoni was used as an outgroup.
Data from: The alternative regenerative strategy of bearded dragon unveils the key processes underlying vertebrate tooth renewal
Deep understanding of lifelong tooth replacement is hampered by the lack of polyphyodonty or oral dentition in conventional models. Here, we show that the bearded dragon, one of the rare vertebrate species with both polyphyodont and monophyodont teeth, constitutes a key model for filling this gap, allowing direct comparison of extreme dentition types. Our developmental and high-throughput transcriptomic data of microdissected dental cells unveils the critical importance of successional dental lamina patterning, in addition to maintenance, for vertebrate tooth renewal. This patterning process happens at various levels, including directional growth but also gene expression levels, dynamics, and regionalization, and involves a large number of yet uncharacterized dental genes. Furthermore, the alternative renewal mechanism of bearded dragon dentition, with dual location of slow-cycling cells, demonstrates the importance of cell migration and functional specialization of putative epithelial stem/progenitor niches in tissue regeneration, while expanding the diversity of dental replacement strategies in vertebrates.
Rapid beard darkening predicts contest outcome, not copulation success, in bearded dragon lizards
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Data from: Temperature-induced colour change varies seasonally in bearded dragon lizards
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Data from: The alternative regenerative strategy of bearded dragon unveils the key processes underlying vertebrate tooth renewal
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Histologic, biochemistry, and metabolomics data for bearded dragons with hepatic fat accumulation
<p>Forty-eight adult bearded dragons were used in this study to explore the associations between plasma metabolites, plasma biochemsitry, and plasma liporproteins and hepatic fat accumulation.</p> <p>Plasma was submitted for untargeted primary metabolomics using gas chromatography time-of-flight mass spectrometry, a biochemistry panel, and a lipoprotein panel determined by high-resolution polyacrylamide gel electrophoresis. Hepatic lipid content was quantified by liver attenuation measurements from computed tomography images and digital image analysis of standardized histologic sections of the liver. Fibrosis was quantified by digital image analysis on Masson's trichrome stained histologic sections. Severity was determined from pathologic review of liver sections according to a standardized grading system.</p>
Histologic, biochemistry, and metabolomics data for bearded dragons with hepatic fat accumulation
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OpenNeuro
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