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66 results for “signal diversity”
Supplementary data files for exploring a diverse world of effector domains and amyloid signaling motifs in fungal NLR proteins
<p>This dataset includes 20 supplementary data files for manuscript <em>Exploring a diverse world of effector domains and amyloid signaling motifs in fungal NLR proteins </em>by Jakub W. Wojciechowski, Emirhan Tekoglu, Marlena Gąsior-Głogowska, Virginie Coustou, Natalia Szulc, Monika Szefczyk, Marta Kopaczyńska, Sven J. Saupe, and Witold Dyrka (under revision). </p> <ul> <li>SF2. Profile HMMs of NLR effector domains. The file includes previously unpublished models.</li> <li>SF3. Multiple sequence alignments of N-termini clusters. </li> <li>SF4. Tabularized results of N-termini annotation.</li> <li>SF5. Structure prediction of HeLo-/Goodbye-/MLKL-like domains. Full AlphaFold2/ColabFold outputs.</li> <li>SF6. Structure prediction of previously unannotated domains. Full AlphaFold2/ColabFold outputs.</li> <li>SF7. PCFGs for BASS. The file includes previously unpublished grammars and a sample scanning configuration.</li> <li>SF8. Candidate short NLR N-termini with ASMs. The FASTA file includes sequences from clusters with high content of ASM-like sequences, according to the BASS PCFGs (SF7).</li> <li>SF9. Profile HMMs of ASMs found in short NLR N-termini.</li> <li>SF10. Profile HMM of HeLo-related HRAMs.</li> <li>SF11. Genomic neighbors of candidate short N-termini NLRs with ASMs The list includes accessions of proteins encoded by genes within the neighborhood of 20kbp of genes encoding the query proteins (SF8).</li> <li>SF12. Short C-termini of 200–400 aa long proteins genomically neighboring candidate short NLR N-termini with ASMs. The FASTA file concerns target proteins listed in SF11.</li> <li>SF13. Pairwise hits of the same ASMs in N-termini of NLRs and C-termini of genomically neighboring proteins. The table is based on SF8–9 and SF11–12. </li> <li>SF14. Lists of HMMER domain hits of effector domain profiles. The lists were obtained through iterative searches in NCBI “nr” starting from Pfam profiles of known NLR effector domains.</li> <li>SF15. Short C-termini of effector proteins. The FASTA file concerns target proteins listed in SF14.</li> <li>SF16. Short N-termini of Pfam NACHT and NB-ARC proteins. The FASTA file concerns proteins from NCBI “nr” associated with the two families in the Pfam database.</li> <li>SF17. Profile HMMs of ASMs found both in effector C-termini and NLR N-termini of genomically neighboring proteins.</li> <li>SF18. Genomic neighbors of candidate short N-termini Pfam NACHT and NB-ARC proteins. The list includes accessions of proteins encoded by genes within the neighborhood of 20kbp of genes encoding the query proteins (SF16).</li> <li>SF19. Pairwise hits of the same ASMs in N-termini of NACHT/NB-ARC NLRs and C-termini of genomically neighboring effector proteins. The table is based on SF15–18. </li> <li>SF20. Pairwise hits of the same ASMs in N-termini of NLRs and C-termini of genomically co-occurring effector proteins. The table is based on SF8–9 and SF15. </li> <li>SF21. BaMLKL homologs identified with hmmsearch in Basidiomycota. A FASTA file.</li> </ul>
Multiple signaling increases both prey response and diversity in a carnivorous pitcher plant
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Data from: Signal integration and adaptive sensory diversity tuning in Escherichia coli chemotaxis
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Signal, Uncertainty, and Conflict in Phylogenomic Data for a Diverse Lineage of Microbial Eukaryotes (Diatoms, Bacillariophyta)
<p>This data depository contains analysis results from Parks, Wickett, and Alverson 2017 (Signal, Uncertainty, and Conflict in Phylogenomic Data for a Diverse Lineage of Microbial Eukaryotes (Diatoms, Bacillariophyta) (Mol. Biol. Evol. doi:10.1093/molbev/msx268)), and is made freely available to the research community.</p> <p>The file and subfolders here are as follows:</p> <p>gene_alignments<br> - contains compressed (tarred and gzipped) folders with all gene alignments at 0.2, 0.5 and 0.8 alignment column occupancy cutoffs. In each folder, there are also text files listing which gene alignments fall under which taxon occupancy subsetting strategy (i.e., 10-20% taxon occupancy, 40-60% taxon occupancy, 80-100% taxon occupancy, etc).</p> <p>gene_trees<br> - contains all (compressed) gene trees (bootstrapped versions, 100 bootstrap pseudo-replicates)) used in Astral analyses for each alignment column occupancy cutoff (0.2, 0.5, 0.8); nodes with less than 33% bootstrap support are collapsed.</p> <p>hmms.mafft_aligned<br> - contains (compressed) hmm specifications for each major diatom morphotype (radial and polar centrics, araphid and raphid pennates) from the 0.2 alignment column occupancy subset of the data. A summary of the sampling scheme and the hmm results/counts are also available in HMM_sampling.docx.</p> <p>mmetsp_nuclear_transcriptome_assemblies<br> - these are the compressed nuclear transcriptome assemblies that were done in-house (i.e., mostly MMETSP samples). Assemblies do not include organellar or rDNA loci.</p> <p>species_trees<br> - contains (compressed) species trees for all phylogenetic strategies and alignment column occupancy cutoff/data subset strategies.</p> <p>Suppl_1.MMETSP_basic_summaries.xlsx<br> - this an identical file to Parks, Wickett and Alverson 2017 supplementary file 1. This file contains taxon, strain and SRA information for all assembled taxa, and a variety of assembly metric information.</p> <p> </p>
Data from: WHAT DOES FUNCTIONAL DIVERSITY AND PHYLOGENETIC SIGNAL REVEAL ABOUT SOUTHERN BRAZILIAN TERRESTRIAL FERNS' ENVIRONMENTAL PREFERENCES?
<p><span><strong>Questions</strong></span><span>: Our study focuses on the following questions: </span><span>1) Do the climatic and edaphic conditions of the Southern Brazilian Atlantic Forest impact terrestrial ferns' functional diversity</span><span>? 2) Which morphological functional traits are most relevant for terrestrial ferns in response to climatic and edaphic changes? 3) If there are trait-environment relationships, what adaptive </span><span>eco-evolutionary </span><span>mechanisms can be inferred from them?</span></p> <p><span><strong>Study site</strong></span><span>: Subtropical Atlantic Forest, </span><span>encompassing </span><span>Rio Grande do Sul, Santa Catarina, and Paraná States, Brazil.</span></p> <p><span><strong>Method</strong></span><span>: We analyzed </span><span>eleven</span><span> </span><span>morphological traits related to resistance, competitive advantage, and reproductive success. All traits were analyzed with and without phylogenetic correction to compute multi-trait functional diversity using </span><span>the standardized effect size of mean functional distance and functional composition via the community-weighted mean. Both metrics were weighted by the absolute frequency of species within sites. Subsequently, we identified the most influential climatic or </span><span>edaphic</span><span> drivers based on linear models. To assess the significance of trait-environment relationships, we employed </span><span>a </span><span>permutational</span><span> </span><span>approach</span><span>.</span></p> <p><span><strong>Results</strong></span><span>: The functional diversity of terrestrial ferns correlates with rainfall</span><span> and temperature, with subtle changes when</span><span> taking into account the phylogenetic relationship of species</span><span>. Similarly, competitive and reproductive traits were associated with</span><span> annual</span><span> rainfall</span><span> and rainfall seasonality</span><span>. However, most morphological traits vary independently of </span><span>edaphic</span><span> and climatic factors, regardless</span><span> of</span><span> whether phylogenetic relatedness is</span><span> considered or not. Few traits, specifically related to resistance and competition, were dispersed across the phylogeny and were not linked with any factor evaluated, leaving the question of their true determinants unanswered.</span></p> <p><span><strong>Conclusions</strong></span><span>: Combining functional and phylogenetic information on terrestrial ferns indicates that species morphology response highly depends on the scale ob</span><span>served. Our analyses demonstrate that climatic and not edaphic factors are the primary drivers of trait diversity in terrestrial ferns within the Subtropical Atlantic Forest, influencing most evaluated traits.</span><span> These findings may help predict the distribution of terrestrial ferns amidst the increasing trend of land use and cover changes in the Atlantic Forest domain.</span></p>
Floral Color Diversity: How Are Signals Shaped by Elevational Gradient on the Tropical–Subtropical Mountainous Island of Taiwan?
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RefAHL: A curated quorum sensing reference linking diverse LuxI-type signal synthases with their acyl-homoserine lactone products
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Data from: Congruent signals of population history but radically different patterns of genetic diversity between mitochondrial and nuclear markers in a mountain lizard
Historical factors, current population size, population connectivity and selective processes at linked loci contribute to shaping contemporary patterns of neutral genetic diversity. It is now widely acknowledged that nuclear and mitochondrial markers react differently to current demography as well as to past history, so the use of both types of markers is often advocated to gain insight on both historical and contemporary processes. We used 12 microsatellite loci genotyped in 13 populations of a mountain lizard (Iberolacerta bonnali) to test if the historical scenario favoured by a previous mitochondrial study was also supported by nuclear markers and thereby evaluated the consequences of post-glacial range movements on nuclear diversity. Congruent signals of recent history were revealed by nuclear and mitochondrial markers using an Approximate Bayesian Computation approach but contemporary patterns of mtDNA and nuclear DNA diversity were radically different. Although dispersal in this species is probably highly restricted at all spatial scales, colonisation abilities have been historically good, suggesting capability for reestablishment of locally extinct populations except in fully disconnected habitats.
Data from: Genetic diversity and parasite facilitated establishment of the invasive signal crayfish (Pacifastacus leniusculus) in Great Britain
Successful establishment of non‐native species is strongly influenced, among other factors, by the genetic variation of founding populations, which can be enhanced by multiple introductions through admixture. Coexisting pathogens can also facilitate the establishment of non‐native species by detrimentally impacting on the native fauna acting as novel weapons. The signal crayfish (Pacifastacus leniusculus) is a highly invasive species, which has caused mass declines of native crayfish in Europe through displacement and transmission of the oomycete Aphanomyces astaci (crayfish plague), which is typically lethal to native European crayfish. However, whether Aphanomyces astaci may have facilitated the invasion of the signal crayfish is not known. We estimated the genetic diversity at microsatellite DNA loci, effective population size, and potential origins of seven infected and noninfected signal crayfish populations in Europe and one founder population in North America. Approximate Bayesian computation analysis and population structuring suggested multiple host introductions from diverse source populations, as well as higher heterozygosity among infected than uninfected populations, which could reflect a fitness advantage. Low effective population size, moderate heterozygosity, and lack of isolation by distance suggest that some invasive signal crayfish populations may not be fully established or that their genetic diversity may have been reduced by eradication attempts.
Population fragmentation drives up genetic diversity in signals of individual identity
<p>Many species advertise their unique identity to conspecifics using dedicated individuality signals: one familiar example is human faces. But how unique in the global population do these signals need to be? While human faces are highly variable, each person interacts with many fewer individuals than are found in the total population. This raises the question of how evolutionary mechanisms drive up population-wide diversity when selection occurs at such a local level. We use an individual-based model in which individuals broadcast their identity and quality in separate, genetically-coded signals. Mimicking, for example, scent marking mammal species, females in the model assess males using the quality signal, then attempt to relocate the highest quality male using his identity signal. We ask how population fragmentation affects genetic diversity in the individual identity-signalling region under sexual selection, predicting one of two opposing outcomes: (1) divided populations evolve fewer signal variants globally, since repetition of signals is not costly when individuals interact only with local conspecifics, or (2) stochasticity in mutation and selection cause divergence among subpopulations, increasing the global number of signal variants. We show that local selection drives up global genetic diversity substantially in fragmented populations, even with extremely low rates of dispersal. Because new signal variants arise by mutation and then sweep through their subpopulation, a fragmented population has more global signal variation. This result furthers our understanding of how high levels of diversity in individuality signals are maintained.</p>
Can sensory drive explain the evolution of visual signal diversity in terrestrial species? A test with Anolis lizards
<p>Animal signal colors evolve to efficiently stimulate conspecific visual systems. The sensory drive hypothesis proposes that species differences in habitat light conditions favor the evolution of color diversity. The strongest support comes from aquatic systems, while terrestrial systems offer fewer convincing examples. Anolis lizards occupy diverse habitats and signal with a colorful dewlap. Dewlap visibility depends on perceived chromatic contrast with the background. Visual-system modeling has shown that red dewlaps are most visible in most habitat types. However, a majority of species possess white or yellow dewlaps. In a recent behavioral study we showed that low light conditions can sometimes make yellow and white colors more visible, by altering chromatic contrast perception with the background. Using 17 Caribbean Anolis species we showed that cut-on wavelength, a measure of dewlap color in a white-to-red continuum, correlates with habitat light intensity. Pairwise comparisons revealed that red dewlaps are most visible in bright habitats, whereas yellow and white are more visible in darker habitats. We conclude that sensory drive has contributed to the evolution of dewlap color differences through the interactive effects of total habitat light intensity and chromatic contrast perception and may provide a mechanism for speciation among anoles.</p>
Data from: Stress response, gut microbial diversity, and sexual signals correlate with social interactions
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Can sensory drive explain the evolution of visual signal diversity in terrestrial species? A test with Anolis lizards
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Data from: Contrasting diversity and demographic signals in sympatric narrow range endemic shrubs of the southwest Western Australian semi-arid zone
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Data from: Congruent signals of population history but radically different patterns of genetic diversity between mitochondrial and nuclear markers in a mountain lizard
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Data from: Genetic diversity and parasite facilitated establishment of the invasive signal crayfish (Pacifastacus leniusculus) in Great Britain
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Data from: Phylogenetic diversity and coevolutionary signals among trophic levels change across a habitat edge
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Population fragmentation drives up genetic diversity in signals of individual identity
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Data from: Birdsong signals individual diversity at the major histocompatibility complex
The major histocompatibility complex (MHC) plays a key role in vertebrate immunity, and pathogen-mediated selection often favours certain allelic combinations. Assessing potential mates' MHC profiles may provide receivers with genetic benefits (identifying MHC-compatible mates and producing optimally diverse offspring) and/or material benefits (identifying optimally diverse mates capable of high parental investment). Oscine songbirds learn songs during early life, such that song repertoire content can reflect population of origin while song complexity can reflect early life condition. Thus birdsong may advertise the singer's genetic dissimilarity to others in the population (and, presumably, compatibility with potential mates), or individual genetic diversity (and thus condition-dependent material benefits). We tested whether song repertoire content and/or complexity signal MHC class IIβ dissimilarity and/or diversity in male song sparrows (Melospiza melodia). Pairwise dissimilarity in repertoire content did not predict MHC dissimilarity between males, suggesting that locally rare songs do not signal rare MHC profiles. Thus, geographical variation in song may not facilitate MHC-mediated inbreeding or outbreeding. Larger repertoires were associated with intermediate MHC diversity, suggesting intermediate rather than maximal MHC diversity is optimal. This could reflect trade-offs between resisting infection and autoimmune disorders. Song complexity may advertise optimal MHC diversity, a trait affecting disease resistance and capacity for parental care.
Data from: Female preference functions drive interpopulation divergence in male signalling: call diversity in the bushcricket Ephippiger diurnus
Female preferences play a major role in the elaboration and diversification of male traits: as a selective pressure on males, variation in female preferences can generate population divergence and ultimately, speciation. We studied how interpopulation differences in the shape of female mate preference functions may have shaped male advertisement signals in the bushcricket Ephippiger diurnus. This species is distributed as geographically isolated populations with striking interpopulation variation in male acoustic signals, most notably in the number of syllables per call. Here, we asked whether differences in the shape of preference functions exist among populations and whether those differences may have driven male signal evolution resulting in the observed differences in syllable numbers. Our results reveal fundamental differences in female preferences among populations, with differences in the overall preference function shape corresponding to differences in male signals. These differences in female preferences best explain the major differences in male signals among populations. The interpopulation variation in signals and preferences potentially reflects the evolutionary history of the species and may contribute to further divergence among populations and subsequent speciation.
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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.