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ShareScore release 0.9.0
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48 results for “host-association”
Disruption of host-associated and benthic microbiota affects reproductive output and settlement of a habitat-forming macroalga
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High levels of inbreeding with spatial and host-associated structure in lice of an endangered freshwater seal
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Data from: Sympatric parasites have similar host-associated, but asynchronous, patterns of diversification
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Data from: A heritable symbiont and host-associated factors shape fungal endophyte communities across spatial scales
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Data from: Host-associated beneficial gut microbiota boosts induced immunity and limits immune deployment costs in bumblebees
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Data from: Convergent shifts in host-associated microbial communities across environmentally elicited phenotypes
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Data from: The socially parasitic ant Polyergus mexicanus has host-associated genetic population structure and related neighboring nests
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Genomic signatures of host-associated divergence and adaptation in a coral-eating snail, Coralliophila violacea (Kiener, 1836)
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Transcriptome-wide comparisons and virulence gene polymorphisms of host-associated genotypes of the cnidarian parasite Ceratonova shasta in salmonids
<p><i>Ceratonova shasta</i> is an important myxozoan pathogen affecting the health of salmonid fishes in the Pacific Northwest of North America. <i>C. shasta</i> exists as a complex of host-specific genotypes, some with low to moderate virulence, and one that causes a profound, lethal infection in susceptible hosts. High throughput sequencing methods are powerful tools for discovering the genetic basis of these host/virulence differences, but deep sequencing of myxozoans has been challenging due to extremely fast molecular evolution of this group, yielding strongly divergent sequences that are difficult to identify, and unavoidable host contamination. We designed and optimized different bioinformatic pipelines to address these challenges. We obtained a unique set of comprehensive, host-free myxozoan RNA-seq data from <i>C. shasta </i>genotypes of varying virulence from different salmonid hosts. Analyses of transcriptome-wide genetic distances and maximum likelihood multigene phylogenies elucidated the evolutionary relationship between lineages and demonstrated the limited resolution of the established Internal Transcribed Spacer marker for <i>C. shasta</i> genotype identification, as this marker fails to differentiate between biologically distinct genotype II lineages from coho salmon and rainbow trout. We further analyzed the datasets based on polymorphisms in two gene groups related to virulence: cell migration and proteolytic enzymes including their inhibitors. The developed SNP-calling pipeline identified polymorphisms between genotypes and demonstrated that variations in both motility and protease genes were associated with different levels of virulence of <i>C. shasta</i> in its salmonid hosts. The prospective use of proteolytic enzymes as promising candidates for targeted interventions against myxozoans in aquaculture is discussed. We developed host-free transcriptomes of a myxozoan model organism from strains that exhibited different degrees of virulence, as a unique source of data that will foster functional gene analyses and serve as a base for the development of potential therapeutics for efficient control of these parasites.</p>
Data from: Comparative phylogeography of the plateau zokor (Eospalax baileyi) and its host-associated flea (Neopsylla paranoma) in the Qinghai-Tibet Plateau
Background: Specific host-parasite systems often embody a particular co-distribution phenomenon, in which the parasite's phylogeographic pattern is dependent on its host. In practice, however, both congruent and incongruent phylogeographic patterns between the host and the parasite have been reported. Here, we compared the population genetics of the plateau zokor (Eospalax baileyi), a subterranean rodent, and its host-associated flea species, Neopsylla paranoma, with an aim to determine whether the two animals share a similar phylogeographic pattern. Results: We sampled 130 host-parasite pairs from 17 localities in the Qinghai-Tibet Plateau (QTP), China, and sequenced a mitochondrial DNA (mtDNA) segment (~2,500 bp), including the complete COI and COII genes. We also detected 55 zokor and 75 flea haplotypes. AMOVA showed that the percentage of variation among the populations of zokors constituted 97.10%, while the within population variation was only 2.90%; for fleas, the values were 85.68% and 14.32%, respectively. Moreover, the flea Fst (fixation index) values were significantly smaller than in zokor. Although the Fst values between zokors and fleas were significantly and positively correlated (N =105, R =0.439, p =0.000), only a small amount (R2= 0.19) of the flea Fst variations could be explained by the zokor Fst variations. The two animals showed very distinct haplotype network structures from each other while co-phylogenetic analyses were unable to reject the hypothesis of an independence of speciation events. Conclusions: Zokors and fleas have very distinct population genetic patterns from each other, likely due to the influence of other sympatrically-distributed vertebrates on the transmission of fleas.
Cultivation of host-associated bacteria under sulfide-enriched microoxic and anoxic conditions
<p>Cultivation protocol</p>
Host-associated bacteria isolated from animals with chemosynthetic symbionts
<p>Phylogenetic affiliation of bacteria isolated from homogenates of gutless oligochaete worms (<em>Olavius</em> spp.) and from gill tissue of lucinid clams (<em>Loripes lucinalis</em>) and bathymodiolin mussles (<em>Bathymodiolus brooksi</em>).</p>
Data from: Protection mutualists affect colonization and establishment of host-associated species in a coral reef cryptofauna community
<p>Protection mutualists display territorial behaviors that provide protective services for their host species. To investigate how protection mutualists impact the colonization and establishment of host-associated species, we conducted a two-stage experiment using a coral reef cryptofauna community as our study system. <em>Pocillopora meandrina </em>is a fairly common, branching coral species that forms habitat that is utilized by a variety of marine organisms. There is a guild of protection mutualists that associate with <i>P</i>. <em>meandrina </em>including Trapeziidae crabs and Alpheidae shrimp. We manipulated coral colonies to have Trapeziidae crabs, Alpheidae shrimp, both, or neither. For the first part of our experiment, we observed colonization of marine invertebrates to these colonies every other day for two months, while resetting the treatment levels every seven days. For the second part of our experiment, we surveyed the community composition weekly and then monthly for a total of six months without interference. During both experiments, we measured the initial and final size of the host coral colonies as a metric of fitness. Data are provided for observed marine decapods through time on each of forty experimental coral colonies for the colonization and the establishment experiments. Data are also provided for coral colony size at the beginning and end of each experiment. </p>
Data from: Protection mutualists affect colonization and establishment of host-associated species in a coral reef cryptofauna community
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Data from: Host-associated genomic differentiation in congeneric butterflies: now you see it, now you don’t
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Data from: Population genetic structure and secondary symbionts in host-associated populations of the pea aphid complex
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Data from: Comparative phylogeography of the plateau zokor (Eospalax baileyi) and its host-associated flea (Neopsylla paranoma) in the Qinghai-Tibet Plateau
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Data from: Dietary specialization in mutualistic acacia-ants affects relative abundance but not identity of host-associated bacteria
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Temporal isolation between sympatric host plants cascades across multiple trophic levels of host-associated insects
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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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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.