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181 results for “cross-species”
EEG: Electrophysiological biomarkers of behavioral dimensions from cross-species paradigms
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data set to bioRxiv preprint 'Persistent cross-species SARS-CoV-2 variant infectivity predicted via comparative molecular dynamics simulation
<p>This is supporting data and software code for the following preprint in bioRxiv</p> <p><strong>Persistent cross-species SARS-CoV-2 variant infectivity predicted via comparative molecular dynamics simulation</strong></p> <p>https://www.biorxiv.org/content/10.1101/2022.04.18.488629v1</p>
Virulence mismatches in index hosts shape the outcomes of cross-species transmission
<p>Supplemental data and code for the paper <em>Virulence mismatches in index hosts shape the outcomes of cross-species transmission</em>.</p> <ul> <li>Dataset 1 is an R Shiny app allowing the estimation of rabies disease progression parameters for all observed combinations of virus source (reservoir) and recipient species, including within-species inoculations.</li> <li>Dataset 2 contains the original data and the analysis code used in this study.</li> </ul> <p>See the README files in each dataset folder for further information and usage instructions.</p>
Experimental assessment of cross-species transmission in a natural multihost–multivector–multipathogen community
<p class="MsoNormal">Vector-borne pathogens (VBPs), many of which cause major suffering worldwide, often circulate in diverse wildlife communities comprising multiple reservoir host and/or vector species. However, the complexities of these systems make it challenging to determine the contributions these different species make to transmission. We experimentally manipulated transmission within a natural multihost–multipathogen–multivector system, by blocking flea-borne pathogen transmission from either of two co-occurring host species (bank voles and wood mice). Through genetic analysis of the resulting infections in the hosts and vectors, we show that both host species likely act together to maintain the overall flea community, but cross-species pathogen transmission is relatively rare – most pathogens were predominantly found in only one host species, and there were few cases where targeted treatment affected pathogens in the other host species. However, we do provide experimental evidence of some reservoir-spillover dynamics whereby reductions of some infections in one host species are obtained by blocking transmission from the other host species. Overall, despite the apparent complexity of such systems, we show there can be 'covert simplicity', whereby pathogen transmission is primarily dominated by single host species, potentially facilitating the targeting of key hosts for control, even in diverse ecological communities.</p>
Cross-species gRNA-design
<p>This dataset contains all scripts and data files required to run the <em><strong>Cross-species gRNA design </strong></em>shiny<em><strong> </strong></em>app created for the Perturb-seq project of the Hellmmann-Enard Lab. As part of this project, we plan to perturb a selection of transcription factors (TFs) using single-cell CRISPRi screens in primate iPS cells, infer gene regulatory networks (GRNs) based on the outcome of the perturbations, then quantitatively compare these GRNs aross species. </p> <p>During the experimental design, we selected TFs based on previous data that might be interesting to perturb and designed single-guide RNAs (gRNAs) to target them in the human and cynomolgus macaque genomes. The app aims to present all information about the TF selection and gRNA design in a structured and interactive manner.</p>
Cross-species analysis identifies mitochondrial dysregulation as a functional consequence of the schizophrenia-associated 3q29 deletion
<p>The 1.6Mb deletion at chromosome 3q29 (3q29Del) is the strongest identified genetic risk factor for schizophrenia, but the effects of this variant on neurodevelopment are not well understood. We interrogated the developing neural transcriptome in two experimental model systems with complementary advantages: isogenic human cortical organoids and isocortex from the 3q29Del mouse model. We profiled transcriptomes from isogenic cortical organoids that were aged for 2 months and 12 months, as well as perinatal mouse isocortex, all at single-cell resolution. Systematic pathway analysis implicated dysregulation of mitochondrial function and energy metabolism. These molecular signatures were supported by analysis of oxidative phosphorylation protein complex expression in mouse brains and assays of mitochondrial function in engineered cell lines. Together these data indicate that metabolic disruption is associated with 3q29Del and is conserved across species.</p>
Power of Bayesian and heuristic tests to detect cross-species introgression with reference to gene flow in the Tamias quadrivittatus group of North American chipmunks
<p>In the past two decades genomic data have been widely used to detect historical gene flow between species in a variety of plants and animals. The Tamias quadrivittatus group of North America chipmunks, which originated through a series of rapid speciation events, are known to undergo massive amounts of mitochondrial introgression. Yet in a recent analysis of targeted nuclear loci from the group, no evidence for cross-species introgression was detected, indicating widespread cytonuclear discordance. The study used the heuristic method HyDe to detect gene flow, which may suffer from low power. Here we use the Bayesian method implemented in the program bpp to reanalyze these data. We develop a Bayesian test of introgression, calculating the Bayes factor via the Savage-Dickey density ratio using the Markov chain Monte Carlo (MCMC) sample under the model of introgression. We take a stepwise approach to constructing an introgression model by adding introgression events onto a well-supported binary species tree. The analysis detected robust evidence for multiple ancient introgression events affecting the nuclear genome, with introgression probabilities reaching 63%. We estimate population parameters and highlight the fact that species divergence times may be seriously underestimated if ancient cross-species gene flow is ignored in the analysis. We examine the assumptions and performance of HyDe, and demonstrate that it lacks power if gene flow occurs between sister lineages or if the mode of gene flow does not match the assumed hybrid speciation model with symmetrical population sizes. Our analyses highlight the power of likelihood-based inference of cross-species gene flow using genomic sequence data.</p>
Cross-species analysis identifies mitochondrial dysregulation as a functional consequence of the schizophrenia-associated 3q29 deletion
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Power of Bayesian and heuristic tests to detect cross-species introgression with reference to gene flow in the Tamias quadrivittatus group of North American chipmunks
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Experimental assessment of cross-species transmission in a natural multihost–multivector–multipathogen community
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Data and script for "Dispersal syndromes in challenging environments: a cross-species experiment"
<p>Datset and R scripts for all analysis of the manuscript "Dispersal syndromes in challenging environments: a cross-species experiment" published in Ecology Letters.</p>
Cross-species and tissue imputation of species-level DNA methylation samples
<p>Imputed dataset of DNA methyation samples representing the predicted mean methylation of a species and tissue type. </p>
RatXcan: A framework for cross-species integration of genome-wide association and gene expression data
<p>Data for paper</p> <p><span>RatXcan: A framework for cross-species integration of genome-wide association and gene expression data</span></p> <p><span>Natasha Santhanam</span><span><span>1</span></span><span><span>†</span></span><span>, Sandra Sanchez-Roige</span><span><span>2,3,4</span></span><span><span>†</span></span><span>, Sabrina Mi</span><span><span>2</span></span><span>, Yanyu Liang</span><span><span>1</span></span><span>, Apurva S. Chitre</span><span><span>2</span></span><span>, Daniel Munro</span><span><span>2</span></span><span>, Denghui Chen</span><span><span>2</span></span><span>, Riyan Cheng</span><span><span>2</span></span><span>, Jianjun Gao</span><span><span>2</span></span><span>, Angel Garcia-Martinez</span><span><span>6</span></span><span>, Anthony M. George</span><span><span>5</span></span><span>, Alexander F. Gileta</span><span><span>2</span></span><span>, Wenyan Han</span><span><span>6</span></span><span>, Katie Holl</span><span><span>7</span></span><span>, Alesa Hughson</span><span><span>8</span></span><span>, Christopher P. King</span><span><span>9</span></span><span>, Alexander C. Lamparelli</span><span><span>9</span></span><span>, Connor D. Martin</span><span><span>5</span></span><span>, Festus Nyasimi</span><span><span>1</span></span><span>, Celine L. St. Pierre</span><span><span>2</span></span><span>, Sarah Sumner</span><span><span>1</span></span><span>, Jordan Tripi</span><span><span>9</span></span><span>, Tengfei Wang</span><span><span>6</span></span><span>, Hao Chen</span><span><span>6</span></span><span>, Shelly Flagel</span><span><span>8</span></span><span>, Keita Ishiwari</span><span><span>5,10</span></span><span>, Paul Meyer</span><span><span>5,9</span></span><span>, Oksana Polesskaya</span><span><span>2</span></span><span>, Laura Saba</span><span><span>11</span></span><span>, Leah C. Solberg Woods</span><span><span>12</span></span><span>, Abraham A. Palmer</span><span><span>2,3</span></span><span>*, Hae Kyung Im</span><span><span>1</span></span><span>*</span></p> <p><span> </span></p> <p><span>[1] Department of Medicine, Section of Genetic Medicine, The University of Chicago, Chicago, IL, 60637, USA</span></p> <p><span>[2] Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA</span></p> <p><span>[3] Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, 92093, USA</span></p> <p><span>[4] Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville, TN, USA</span></p> <p><span>[5] University at Buffalo, Clinical and Research Institute on Addictions University at Buffalo, Buffalo, NY, 14203, USA</span></p> <p><span>[6] University of Tennessee Health Science Center, Department of Pharmacology, Addiction Science and Toxicology, Memphis, TN, 38120, USA</span></p> <p><span>[7] Medical College of Wisconsin, Department of Pediatrics, Milwaukee, WI, 53226, USA</span></p> <p><span>[8] University of Michigan, Department of Psychiatry, Ann Arbor, MI, 48109, USA</span></p> <p><span>[9] University at Buffalo, Department of Psychology, Buffalo, NY, 14260, USA</span></p> <p><span>[10] University at Buffalo, Pharmacology and Toxicology University at Buffalo, Buffalo, NY, 14203, USA</span></p> <p><span>[11] University of Colorado Anschutz Medical Campus, Department of Pharmaceutical Sciences, Aurora, CO 80045, USA</span></p> <p><span>[12] Wake Forest University School of Medicine, Department of Internal Medicine, Winston-Salem, NC, 27157, USA</span></p>
Reservoir dynamics of rabies in Southeast Tanzania and the roles of cross-species transmission and domestic dog vaccination
<p>Understanding the role of different species in the transmission of multi-host pathogens, such as rabies virus, is vital for effective control strategies. Across most of sub-Saharan Africa domestic dogs (Canis familiaris) are considered the reservoir for rabies, but the role of wildlife has been long debated. Here we explore the multi-host transmission dynamics of rabies across southeast Tanzania.</p> <p>Between January 2011 and July 2019 data on probable rabies cases were collected in the regions of Lindi and Mtwara. Hospital records of animal-bite patients presenting to healthcare facilities were used as sentinels for animal contact tracing. The timing, location and species of probable rabid animals was used to reconstruct transmission trees to infer who infected whom and the relative frequencies of within- and between-species transmission.</p> <p>During the study, 688 probable human rabies exposures were identified, resulting in 47 deaths. Of these exposures, 389 were from domestic dogs (56.5%) and 262 from jackals (38.1%). Over the same period 549 probable animal rabies cases were traced: 303 in domestic dogs (55.2%) and 221 in jackals (40.3%).</p> <p>Although dog-to-dog transmission was most commonly inferred (40.5% of transmission events), a third of inferred events involved wildlife-to-wildlife transmission (32.6%) and evidence suggested some sustained transmission chains within jackal populations.</p> <p>A steady decline in probable rabies cases in both humans and animals coincided with the implementation of widespread domestic dog vaccination during the first six years of the study. Following the lapse of this programme dog rabies cases began to increase in one of the northernmost districts.</p> <p>Synthesis and applications: In southeast Tanzania, despite a relatively high incidence of rabies in wildlife and evidence of wildlife-to-wildlife transmission, domestic dogs remain essential to the reservoir of infection. Continued dog vaccination alongside improved surveillance would allow a fuller understanding of the role of wildlife in maintaining transmission in this area. Nonetheless, dog vaccination clearly suppressed rabies in both domestic dog and wildlife populations, reducing both public health and conservation risks and, if sustained, has potential to eliminate rabies from this region.</p>
Compiled comparative data and the R code from: "Why do some primate mothers carry their infant's corpse? A cross-species comparative study"
<p>Non-human primates respond to the death of a conspecific in diverse ways, some of which may present phylogenetic continuity with human thanatological responses. Of these responses, infant corpse carrying by mothers (ICC) is the most frequently reported. Despite its prevalence, quantitative analyses of this behaviour are scarce and inconclusive. We compiled a database of 409 published cases across 50 different primate species of mothers' responses to their infants' deaths and used Bayesian phylogenetic regressions with an information-theoretic approach to test hypotheses proposed to explain between- and within-species variation in ICC. We found that ICC was more likely when the infant's death was non-traumatic (e.g. illness) versus traumatic (e.g. infanticide), and when the mother was younger. These results support the death detection hypothesis, which proposes that ICC occurs when there are fewer contextual or sensory cues indicating death. Such an interpretation suggests that primates are able to attain an awareness of death. In addition, when carried, infant age affected ICC duration, with longer ICC observed for younger infants. This result suggests that ICC is a by-product of strong selection on maternal behaviour. The findings are discussed in the context of the evolution of emotion, and implications for evolutionary thanatology are proposed.</p>
Cross-species transcriptomics uncovers genes underlying genetic accommodation of developmental plasticity in spadefoot toads
<p>That hardcoded genomes can manifest as plastic phenotypes responding to environmental perturbations is a fascinating feature of living organisms. How such developmental plasticity is regulated at the molecular level is beginning to be uncovered aided by the development of -omic techniques. Here, we compare the transcriptome-wide responses of two species of spadefoot toads with differing capacity for developmental acceleration of their larvae in the face of a shared environmental risk: pond drying. By comparing gene expression profiles over time and performing cross-species network analyses, we identified orthologues and functional gene pathways whose environmental sensitivity in expression have diverged between species. Genes related to lipid, cholesterol and steroid biosynthesis and metabolism make up most of a module of genes environmentally responsive in one species, but canalized in the other. The evolutionary changes in the regulation of the genes identified through these analyses may have been key in the genetic accommodation of developmental plasticity in this system.</p>
Estimation of species divergence times in presence of cross-species gene flow
<p>Cross-species introgression can have significant impacts on phylogenomic reconstruction of species divergence events. Here, we used simulations to show how the presence of even a small amount of introgression can bias divergence time estimates when gene flow is ignored in the analysis. Using advances in analytical methods under the multispecies coalescent (MSC) model, we demonstrate that by accounting for incomplete lineage sorting and introgression using large phylogenomic data sets this problem can be avoided. The multispecies-coalescent with-introgression (MSci) model is capable of accurately estimating both divergence times and ancestral effective population sizes, even when only a single diploid individual per species is sampled. We characterize some general expectations for biases in divergence time estimation under three different scenarios: 1) introgression between sister species, 2) introgression between non-sister species, and 3) introgression from an unsampled (i.e., ghost) outgroup lineage. We also conducted simulations under the isolation-with-migration (IM) model, and found that the MSci model assuming episodic gene flow was able to accurately estimate species divergence times despite high levels of continuous gene flow. We estimated divergence times under the MSC and MSci models from two published empirical datasets with previous evidence of introgression, one of 372 target enrichment loci from baobabs (<em>Adansonia</em>), and another of 1,000 transcriptome loci from fourteen species of the tomato relative, <em>Jaltomata</em>. The empirical analyses not only confirm our findings from simulations, demonstrating that the MSci model can reliably estimate divergence times, but also show that divergence time estimation under the MSC can be robust to the presence of small amounts of introgression in empirical datasets with extensive taxon sampling.</p>
Foraging behavior affects nest architecture in a cross-species comparison of ant nests
<p>Animals construct and inhabit nests that can exhibit dramatic intra- and inter-specific variation due to differences in behavior, the biotic and abiotic environment, and evolutionary history. In ants, variation in nest architecture not only reflects differences in ecology and collective behavior; it influences the behaviors of the colonies that inhabit them. Each component of the nest (such as depth, and the number, size, and connectivity of chambers) reflects selective pressures for different functions, or structural constraints that are imposed by the environment or evolutionary history. To determine potential drivers of nest structure variation in subterranean nests, we performed a meta-analysis of published ant nests to compare different structural elements within and across species. We complemented this survey with 42 nest casts of two closely related species. We quantified nest features that can potentially impact ant foraging behavior and examined whether phylogeny or foraging strategy are better explanatory variables for the variation we observed. We found that foraging strategy better explained nest features than evolutionary history. Our work reveals the importance of ecology in shaping nest structure and provides an important foundation for future investigations into the selective pressures that have shaped ant nest architecture.</p>
Evaluating the potential of cross-species neutralization of anti-PfCyRPA and anti-PfRIPR monoclonal antibodies
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Foraging behavior affects nest architecture in a cross-species comparison of ant nests
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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.