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92 results for “cnidarian”
Data from: Minimal ProtoHox cluster inferred from bilaterian and cnidarian Hox complements
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Data from: Developmental biology of the early Cambrian cnidarian Olivooides
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Data from: Are Niemann-Pick type C proteins key players in cnidarian-dinoflagellate endosymbioses?
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Data from: Population genetic data of a model symbiotic cnidarian system reveal remarkable symbiotic specificity and vectored introductions across ocean basins
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Parasitic cnidarians (Myxozoa) do not retain key oxygen-sensing and homeostasis tool-kit genes: Transcriptome assemblies
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Transcriptome-wide comparisons and virulence gene polymorphisms of host-associated genotypes of the cnidarian parasite Ceratonova shasta in salmonids
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Cnidarians from the Gulf of Mexico and Mexican Caribbean at the "Colección de Cnidarios del Golfo de México y Caribe Mexicano" at the UMDI-Sisal, Facultad de Ciencias, UNAM, México
<p>The dataset contains information of specimens at the Collection "Cnidarios del Golfo de México y mar Caribe" (federal register YUC-CC-254-11) at the UMDI-Sisal, Facultad de Ciencias, UNAM, México. This dataset represents only specimens identified to genus and species (1308 specimens) from 72 localities in coastal lagoons and coral reefs at the Gulf of Mexico and the Mexican Caribbean from a period of time from 2008 to 2017. The specimens at the collection have been either identified or validated by professional cnidarian taxonomists, providing a significant level of trust in the data. The taxonomists that participated in this process appear in the list of authors. </p>
Figure 2 from: Sousa FB, Milanin T, Morandini AC, Espinoza LL, Flores-Gonzales A, Gomes AL.S, Matoso DA, Mathews PD (2021) Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation. Zoosystematics and Evolution 97(2): 307-314. https://doi.org/10.3897/zse.97.64769
Figure 2 Transmission electron microscopy images of Ceratomyxa amazonensis isolated of Symphysodon discus from the Unini River, Amazonas State, Brazil. a. Myxospore showing two sub-spherical polar capsules and sporoplasm (sp) occupying most of the myxospore volume; b. Detail of the apical suture (black arrow) and sporoplasmosomes (arrowheads); c. Detail of lateral suture (black arrow); d. Polar capsule displaying still uncoiled internal polar tubule (black arrow). Scale bars: 2 µm (a); 1 µm (c); 500 nm (b, d).
Figure 1 from: Sousa FB, Milanin T, Morandini AC, Espinoza LL, Flores-Gonzales A, Gomes AL.S, Matoso DA, Mathews PD (2021) Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation. Zoosystematics and Evolution 97(2): 307-314. https://doi.org/10.3897/zse.97.64769
Figure 1 Light photomicrographs of Ceratomyxa amazonensis plasmodia. a, b. Slightly elongated plasmodia showing mature myxospores (white asterisks) and few early sporogonic stages (arrows); c. Spherical plasmodium with two slightly crescent-shaped mature myxospores (ms) and containing early sporogonic stages (arrows); d. Differential interference contrast microscopy snapshot of a slightly crescent-shaped mature myxospore. Scale bars: 10 µm.
Data from: Optimal nutrient exchange and immune responses operate in partner specificity in the cnidarian-dinoflagellate symbiosis
The relationship between reef-building corals and phototrophic dinoflagellates of the genus Symbiodinium is fundamental to the functioning of coral reef ecosystems. It has been suggested that reef corals may adapt to climate change by changing their dominant symbiont type to a more thermally tolerant one, although the capacity for such a community shift is potentially hindered by the compatibility of different host-symbiont pairings. Here we combined transcriptomic and metabolomic analyses to characterize the molecular, cellular, and physiological processes that underlie this compatibility, with a particular focus on Symbiodinium trenchii, an opportunistic, thermally tolerant symbiont that flourishes in coral tissues after bleaching events. Symbiont-free individuals of the sea anemone Exaiptasia pallida (commonly referred to as Aiptasia), an established model system for the study of the cnidarian-dinoflagellate symbiosis, were colonized with the "normal" (homologous) symbiont Symbiodinium minutum and the heterologous S. trenchii. Analysis of the host gene and metabolite expression profiles revealed that heterologous symbionts induced an expression pattern intermediate between the typical symbiotic state and the aposymbiotic state. Furthermore, integrated pathway analysis revealed that increased catabolism of fixed carbon stores, metabolic signaling, and immune processes occurred in response to the heterologous symbiont type. Our data suggest that both nutritional provisioning and the immune response induced by the foreign "invader" are important factors in determining the capacity of corals to adapt to climate change through the establishment of novel symbioses.
FIGURE 1. Pseudopontonides plumosus n in Pseudopontonides plumosus sp. nov., a new cnidarian-associated pontoniine shrimp (Crustacea, Decapoda, Palaemonidae) from Curaçao *
FIGURE 1. Pseudopontonides plumosus n. sp., female holotype RMNH D 51661. Scale = 2 mm.
Muscle systems and motility of early animals highlighted by cnidarians from the basal Cambrian
<p>Although fossil evidence suggests that various animal groups were able to move actively through their environment in the early stages of their evolution, virtually no direct information is available on the nature of their muscle systems. The origin of jellyfish swimming, for example, is of great interest to biologists. Exceptionally preserved muscles are described here in benthic peridermal olivooid medusozoans from the basal Cambrian of China (Kuanchuanpu Formation, ca. 535 Ma) that have direct equivalent in modern medusozoans. They consist of circular fibers distributed over the bell surface (subumbrella) and most probably have a myoepithelial origin. This is the oldest record of a muscle system in cnidarians and more generally in animals. This basic system was probably co-opted by early Cambrian jellyfish to develop capacities for jet-propelled swimming within the water column. Additional lines of fossil evidence obtained from ecdysozoans (worms and panarthropods) show that the muscle systems of early animals underwent a rapid diversification through the early Cambrian and increased their capacity to colonize a wide range of habitats both within the water column and sediment at a critical time of their evolutionary radiation.</p>
The proteome of dinoflagellate symbionts during symbiosis establishment in a model cnidarian
<p>Supplemntary tables, Data and R scripts</p>
Data from: The joint evolution of the Myxozoa and their alternate hosts: a cnidarian recipe for success and vast biodiversity
The relationships between parasites and their hosts are intimate, dynamic and complex; the evolution of one is inevitably linked to the other. Despite multiple origins of parasitism in the Cnidaria, only parasites belonging to the Myxozoa are characterized by a complex life cycle, alternating between fish and invertebrate hosts, as well as by exceptionally high species diversity. This inspired us to examine the history of reciprocal interactions and adaptive radiations in myxozoans and their hosts by determining the degree of congruence between their phylogenies and by timing the emergence of myxozoan lineages in relation to their hosts. Recent genomic analyses suggested a common origin of Polypodium hydriforme, a cnidarian parasite of acipenseriform fishes, and the Myxozoa, and proposed fish as original hosts for both sister lineages. We clearly demonstrate that the Myxozoa emerged long before fish populated Earth and that phylogenetic congruence with their invertebrate hosts is evident down to the most basal branches of the tree, indicating bryozoans and annelids as original hosts and challenging previous hypothesis. We provide evidence that, following invertebrate invasion, fish hosts were acquired multiple times, leading to parallel cospeciation patterns in all major phylogenetic lineages. We identify the acquisition of vertebrate hosts that facilitate alternative transmission and dispersion strategies as reason for the distinct success of the Myxozoa, and identify massive host specification-linked parasite diversification events. The results of this study transform our understanding of the origins and evolution of parasitism in the most basal metazoan parasites known.
Data from: Optimal nutrient exchange and immune responses operate in partner specificity in the cnidarian-dinoflagellate symbiosis
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Data from: The joint evolution of the Myxozoa and their alternate hosts: a cnidarian recipe for success and vast biodiversity
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Muscle systems and motility of early animals highlighted by cnidarians from the basal Cambrian
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Data from: Molecular assessment of heterotrophy and prey digestion in zooxanthellate cnidarians
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Decoding cnidarian cell type gene regulation
GEO Series GSE294388. Nematostella vectensis. 27 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Post transcriptional modifications of miRNAs in the cnidarian Nematostella vectensis
GEO Series GSE94526. Nematostella vectensis. 30 samples. Type: Non-coding RNA profiling by high throughput sequencing.
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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.
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.