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402 results for “hybrid zone”
Data from: Differential introgression and the maintenance of species boundaries in an advanced generation avian hybrid zone
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Data from: Mating system variation in hybrid zones: facilitation, barriers and asymmetries to gene flow
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Resolving spatial complexities of hybridization in the context of the gray zone of speciation in North American ratsnakes (Pantherophis obsoletus complex)
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Data from: Describing a developing hybrid zone between red wolves and coyotes in eastern North Carolina, USA
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Data from: Hybrid zone barriers comparative data set
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A genomic footprint of a moving hybrid zone in marbled newts
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Data from: Cultural isolation is greater than genetic isolation across an avian hybrid zone
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Data from: Reduced male fertility is common but highly variable in form and severity in a natural house mouse hybrid zone
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Data from: Pervasive introgression of MHC genes in newt hybrid zones
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Data from: Tracing the footprints of a moving hybrid zone under a demographic history of speciation with gene flow
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Data from: Using the Mus musculus hybrid zone to assess covariation and genetic architecture of limb bone lengths
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Data from: Positive feedback between ecological and reproductive character displacement in a young avian hybrid zone
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Genetic admixture despite ecological segregation in a North African sparrow hybrid zone (Aves, Passeriformes, Passer domesticus x Passer hispaniolensis)
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Testis expression in Mus musculus domesticus x Mus musculus musculus hybrid zone mice
GEO Series GSE61417. Mus musculus; Mus musculus musculus x M. m. domesticus. 190 samples. Type: Expression profiling by array.
Array comparative genomic hybridization of canine follicular lymphoma (cFL) and canine marginal zone lymphoma (cMZL)
GEO Series GSE131618. Canis lupus familiaris. 12 samples. Type: Genome variation profiling by array.
Data from: Steep clines within a highly permeable genome across a hybrid zone between two subspecies of the European rabbit
Maintenance of genetic distinction in the face of gene flow is an important aspect of the speciation process. Here, we provide a detailed spatial and genetic characterization of a hybrid zone between two subspecies of the European rabbit. We examined patterns of allele frequency change for 22 markers located on the autosomes, X-chromosome, Y-chromosome, and mtDNA in 1078 individuals sampled across the hybrid zone. While some loci revealed extremely wide clines (w>=300 km) relative to an estimated dispersal of 1.95-4.22 km/generation, others showed abrupt transitions (w = 10 km), indicating localized genomic regions of strong selection against introgression. The subset of loci showing steep clines had largely coincident centers and stepped changes in allele frequency that did not co-localize with any physical barrier or ecotone, suggesting that the rabbit hybrid zone is a tension zone. The steepest clines were for X and Y chromosome markers. Our results are consistent with previous inference based on DNA sequence variation of individuals sampled in allopatry in suggesting that a large proportion of each genome has escaped the overall barrier to gene flow in the middle of the hybrid zone. These results imply an old history of hybridization and high effective gene flow, and anticipate that isolation factors should often localize to small genomic regions.
Data from: A genomic footprint of hybrid zone movement in crested newts
Speciation typically involves a stage in which species can still exchange genetic material. Interspecific gene flow is facilitated by the hybrid zones that such species establish upon secondary contact. If one member of a hybridizing species pair displaces the other, their hybrid zone would move across the landscape. Although theory predicts that moving hybrid zones quickly stagnate, hybrid zones tracked over one or a few decades do not always follow such a limitation. This suggests that hybrid zones have the potential to traverse considerable distances over extended periods of time. When hybrid zones move, introgression is predicted to result in biased gene flow of selectively neutral alleles, from the receding species into the advancing species. We test for such a genomic footprint of hybrid zone movement in a pair of crested newt species (genus Triturus) for which we have a priori support for westward hybrid zone movement. We perform a multilocus phylogeographical survey and conduct Bayesian clustering analysis, estimation of ancestry and heterozygosity, and geographical cline analysis. In a 600 km wide area east of the present day hybrid zone a genomic footprint constitutes empirical evidence consistent with westward hybrid zone movement. The crested newt case suggests that hybrid zone movement can occur over an extensive span of time and space. Inferring hybrid zone movement provides fundamental insight into historical biogeography and the speciation process, and we anticipate that hybrid zones will prove to be far more mobile than currently appreciated.
Patient Satisfaction and Crestal Bone Loss of Polymer Infiltrated Ceramic Network Versus Lithium Disilicate Implant Hybrid Abutment Crowns in Esthetic Zone
ClinicalTrials.gov study NCT03333889. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Data from: Steep clines within a highly permeable genome across a hybrid zone between two subspecies of the European rabbit
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Data from: A genomic footprint of hybrid zone movement in crested newts
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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.