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28 results for “asymmetric introgression”
Data from: Sharp acoustic boundaries across an altitudinal avian hybrid zone despite asymmetric introgression
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Data from: Multiple cases of asymmetric introgression among horseshoe bats detected by phylogenetic conflicts across loci
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Data from: Asymmetric introgression in a spotted salamander hybrid zone
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Ancient introgression between distantly related white oaks (Quercus sect Quercus) shows evidence of climate-associated asymmetric gene exchange
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Data from: Asymmetric introgression between the M and S molecular forms of the malaria vector, Anopheles gambiae, maintains divergence despite extensive hybridisation.
The suggestion that genetic divergence can arise and/or be maintained in the face of gene flow, has been contentious since first proposed. Partially reproductively isolated taxa have been highlighted as offering unique opportunities for identifying the mechanisms underlying the maintenance of divergence with gene flow. The African malaria vector, Anopheles gambiae s.s., is widely regarded as consisting of two sympatric forms, thought by many to represent incipient species, the M and S molecular forms. However, there has been much debate about the extent of reproductive isolation between M and S, with one view positing that divergence may have arisen and is being maintained in the presence of gene flow, and the other proposing a more advanced speciation process with little realized gene flow due to low fitness of hybrids. These hypotheses have been difficult to address because hybrids are typically very rare (<1%). Here, we assess samples from an area of high hybridisation and demonstrate that hybrids are fit and responsible for extensive introgression. Nonetheless, we show that strong divergent selection at a subset of loci combined with highly asymmetric introgression has enabled M and S to remain genetically differentiated despite extensive gene flow. We propose that the extent of reproductive isolation between M and S varies across West Africa resulting in a "geographic mosaic of reproductive isolation"; a finding which adds further complexity to our understanding of divergence in this taxon and which has considerable implications for transgenic control strategies.
Data from: Asymmetric introgression between the M and S molecular forms of the malaria vector, Anopheles gambiae, maintains divergence despite extensive hybridisation.
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Data from: Genetic drift or natural selection? Hybridization and asymmetric mitochondrial introgression in two Caribbean lizards (Anolis pulchellus and Anolis krugi)
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FIGURE 2. Spider images. A H in Phylogeography of the Habronattus amicus species complex (Araneae: Salticidae) of western North America, with evidence for localized asymmetrical mitochondrial introgression
FIGURE 2. Spider images. A H. amicus female (HA1165, Summer Lake); B H. ustulatus female (HA1107, Summer Lake); C H. amicus male (HA1167, Summer Lake), right leg I, prolateral view; D H. ustulatus male (HA1111, Summer Lake), right leg I, prolateral view; E H. amicus male (HA1167), face & palp, frontal view; F H. ustulatus male (HA1111), face & palp, frontal view; G H. ustulatus female, Fossil Lake; H H. amicus male, Fossil Lake. All scale bars = 1 mm. Images A–F captured using a Visionary Digital BK plus system (http://www.visionarydigital.com), including a Canon 40D digital camera, Infinity Optics Long Distance Microscope, P-51 camera controller, and FX2 lighting system. Individual images were combined into a composite image using Helicon Focus software, which was then edited using Adobe Photoshop CS3.
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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.