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507 results for “symbiont”
Data from: Fungal symbionts generate water-saver and water-spender plant drought strategies via diverse effects on host gene expression
<p><em>Panicum</em> <em>hallii</em> var <em>hallii</em> HAL2 plants were inoculated individually with six foliar fungal endophytes or fungus-free controls and subjected to 5% or 20% soil moisture treatments. The fungi were selected for their previously observed effects on plant drought physiology, inducing either a "water saver" or a "water spender" strategy in the host. Plants were grown in enclosed microcosms to prevent cross-contamination and each treatment and control included 6 replicates. All fungi were Ascomycetes isolated from plants in central Texas. Plants were monitored for height, wilt, water loss, and survival. At the harvest, we also measured biomass and leaf colonization by the fungi and flash-froze leaf tissue for transcriptomic analyses. Both plant response and gene expression data are provided.</p>
Supplementary data files for Manzano-Marín et. al. 2023 "Evolution of an alternative genetic code in the Providencia symbiont of the haematophagous leech Haementeria acuecueyetzin"
<p>The data set consists of siz folders:</p> <p><strong>1)</strong> "genome_data": GenBank-formatted annotation files for newly sequenced <em>Providencia siddallii</em> endosymbionts.</p> <p><strong>2)</strong> "orthoMCL_data": Flat-text output files from the OrthoMCL pipeline.</p> <p><strong>3)</strong> "phylongey": MrBayes run files for <em>Providencia</em> spp. Bayesian phylogenetic inference.</p> <p><strong>4)</strong> "UGA_proteins_and_genes": FASTA-formatted alignments of UGA-containing protein-coding gene sequences from figure 3 and table 3.</p> <p><strong>5)</strong> "RepeatModeler_Prsiddallii": Log files for RepeatModeler runs of <em>P. siddallii</em> genomes.</p> <p><strong>6)</strong> "checkM2_Psiddallii": checkM2 input and output files for <em>P. siddallii</em> protein sets.</p> <p><strong>7)</strong> "breseq_runs": breseq output folders for variant calling on newly assembled genomes.</p> <p><strong>8)</strong> "GSAlign_Prsiddallii_GTOCOR": output files of variant calling using GSAlign between <em>P. siddallii</em> strain GTOCOR1 (sampled in 2015 and reported in Manzano-Marín <em>et. al.</em> 2015 <em>GBE</em>) and GTOCOR2 (sampled in 2019 and reported in the associated work).</p>
Aggregation of symbionts on hosts depends on interaction type and host traits
<p>Symbionts tend to be aggregated on their hosts, such that few hosts harbor the majority of symbionts. This ubiquitous pattern can result from stochastic processes, but aggregation patterns may also depend on the type of host-symbiont interaction, plus traits that affect host exposure and susceptibility to symbionts. Untangling how aggregation patterns both within and among populations depend on stochastic processes, interaction type and host traits remains an outstanding challenge. Here, we address this challenge by using null models to compare aggregation patterns in a neutral system of Balanomorpha barnacles attached to patellid limpets and a host-parasite system of Trinidadian guppies (Poecilia reticulata) and their Gyrodactylus spp. monogeneans. We first used a model to predict patterns of symbiont-host aggregation due to random partitioning of symbionts to hosts. This null model accurately predicted the aggregation of barnacles on limpets, but the degree of aggregation varied across 303 quadrats. Quadrats with larger limpets had less aggregated barnacles, whereas aggregation increased with variation in limpet size. Across 84 guppy populations, Gyrodactylus spp. parasites were significantly less aggregated than predicted by the null model. As in the neutral limpet-barnacle system, aggregation decreased with mean host size. Parasites were also significantly less aggregated on males than females because male guppies tended to have higher prevalence and lower parasite burdens than predicted by the null model. Together, these results suggest stochastic processes can explain aggregation patterns in neutral but not parasitic systems, though in both systems host traits affect aggregation patterns. Because the distribution of symbionts on hosts can affect symbiont evolution via intraspecific interactions, and reciprocally host behavior and evolution via host-symbiont interactions, identifying the drivers of aggregation enriches our understanding of host-symbiont interactions.</p>
FIGURE 5 Combined 28S in The stoloniferous octocoral, Hanabira yukibana, gen. nov., sp. nov., of the southern Ryukyus has morphological and symbiont variation
FIGURE 5 Combined 28S rDNA+COI+mtMutS+ND6 phylogenetic reconstruction for 35 clavulariid specimens, including Hanabira yukibana, gen nov., sp. nov., and Clavularia spp. from Okinawa (OKA) and Irio- mote (IRI) Islands and sister taxa, Knopia octocontacanalis Alderslade & Mcfadden, 2007. Parasphaerasclera rotifera and Eleutherobia grayi were used as outgroup. The best maximum likelihood tree is shown, with values at branches representing bootstrap probabilities (>50%) and posterior probabilities from the Bayesian inference (>0.50), respectively. Polyp variation for H. yukibana is illustrated for the three groups by colour and corresponding in situ photographs. Photograph credit: in situ image NTM C15392 Knopia octocontacanalis, by Frances Dipper (modified from Alderslade & McFadden, 2007, reproduced with permission from copyright holder). Mutualistic Symbiodiniaceae (genera Cladocopium and Durusdinium) found in H. yukibana specimens are displayed in green shades and sclerite types unique to each genus are also shown. Photograph credit: sclerite images NTM C15392 Knopia octocontacanalis, modified from Alderslade & McFadden, 2007, reproduced with permission from copyright holder. Downloaded from Brill. com10/17/2022 12:54:44PM via free access
FIGURE 3 in The stoloniferous octocoral, Hanabira yukibana, gen. nov., sp. nov., of the southern Ryukyus has morphological and symbiont variation
FIGURE 3 Sclerite types seen in Hanabira yukibana, gen. nov., sp. nov., NSMT Co 1626, holotype; a) spindles of calyx (scale bar: 0.1 mm), b) anthocodial platelets (scale bar: 0.01 mm), c) anthocodial rods (scale bar: 0.1 mm), d) fused clump of stolon (scale bar: 0.1 mm). NSMT Co 1637, paratype; e) fragments of stolon (scale bar: 0.1 mm).
FIGURE 1 in The stoloniferous octocoral, Hanabira yukibana, gen. nov., sp. nov., of the southern Ryukyus has morphological and symbiont variation
FIGURE 1 Map of sampling locations in Okinawa Prefecture around Okinawa Island (11 sites) and Iriomote Island (seven sites); collection sites Hanabira yukibana, gen. nov., sp. nov., () and Clavularia spp. () specimens.
FIGURE 4 Phylogenetic relationships among 134 in The stoloniferous octocoral, Hanabira yukibana, gen. nov., sp. nov., of the southern Ryukyus has morphological and symbiont variation
FIGURE 4 Phylogenetic relationships among 134 species of octocorals, including Hanabira yukibana, gen. nov., sp. nov., using the combined 28S rDNA+COI+mtMutS dataset. The best maximum likelihood tree is shown, with values at branches representing bootstrap probabilities shown when>70%. Bayesian posterior probabilities are shown at branches when>0.80 (A = 1.00; B = 0.95–0.99; C = 0.90–0.94; D = 0.80–0.89). * represents 100/1.00 for both analyses. Stoloniferous species are highlighted in grey boxes and non-stoloniferous octocorals are shown with family classification only. Cornularia spp. were used as outgroup.
Data from: How do host age and nutrition affect density regulation of obligate versus facultative bacterial symbionts? Insights from the tsetse fly
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Variation in symbiont density is linked to changes in constitutive immunity in the facultatively symbiotic coral, Astrangia poculata
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Data from: Fungal symbionts generate water-saver and water-spender plant drought strategies via diverse effects on host gene expression
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Aggregation of symbionts on hosts depends on interaction type and host traits
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Data from: A host-adapted auxotrophic gut symbiont induces mucosal immunodeficiency (Part I)
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Data for: Multi-omics analysis identifies symbionts and pathogens of blacklegged ticks (Ixodes scapularis) from a Lyme disease hotspot in southeastern Ontario, Canada
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A host-adapted auxotrophic gut symbiont induces mucosal immunodeficiency (Part II)
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Data from: Plant host traits mediated by foliar fungal symbionts and secondary metabolites
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Core symbionts, age at inoculation, and diet affect colonization of the bumble bee gut by a common bacterial pathogen
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Host-symbiont stress response to lack-of-sulfide in the giant ciliate mutualism
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Data from: Niche breadth and divergence in sympatric cryptic coral species (Pocillopora spp.) across habitats within reefs and among algal symbionts
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Multiple phenotypes conferred by a single insect symbiont are independent
<p>Many microbial symbionts have multiple phenotypic consequences for their animal hosts. However, the ways in which different symbiont-mediated phenotypes combine to affect fitness are not well understood. We investigated whether there are correlations between different symbiont-mediated phenotypes. We used the symbiont <i>Spiroplasma</i>, a striking example of a bacterial symbiont conferring diverse phenotypes on insect hosts. We took 11 strains of <i>Spiroplasma</i> infecting pea aphids (<i>Acyrthosiphon pisum</i>)<i> </i>and assessed their ability to provide protection against the fungal pathogen <i>Pandora neoaphidis</i> and the parasitoids <i>Aphidius ervi</i> and <i>Praon volucre</i>. We also assessed effects on male offspring production for five of the <i>Spiroplasma </i>strains. All but one of the <i>Spiroplasma</i> strains provided very strong protection against the parasitoid <i>P. volucre</i>. As previously reported, variable protection against <i>P. neoaphidis</i> and <i>A. ervi</i> was also present; male-killing was likewise a variable phenotype. We find no evidence of any correlation, positive or negative, between the different phenotypes, nor was there any evidence of an effect of symbiont phylogeny on protective phenotype. We conclude that multiple symbiont-mediated phenotypes can evolve independently from one another without trade-offs between them.</p>
Data from: Egg mass polymorphism in Ambystoma maculatum is not associated with larval performance or survival, or with cell density of the algal symbiont Oophila amblystomatis
<p>These data are from a 2018 study of larval morphology, performance, and survival in the spotted salamander (<em>Ambystoma maculatum</em>). We examined larvae of two egg mass color morphs: clear and white. We also quantified the density of algal (<em>Oophila amblystomatis</em>) cells on the egg capsules of embryos. The data correspond to our publication in <em>Evolutionary Ecology</em>.</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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