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333 results for “Convergent evolution”
Figure 2 in Morphology, morphogenesis, and molecular phylogeny of a new marine urostylid ciliate (Ciliophora, Stichotrichia) from the South China Sea, and a brief overview of the convergent evolution of the midventral pattern within the Spirotrichea
Figure 2. Photomicrographs of Bergeriella ovata gen. et sp. nov. from life. A, ventral view of a specimen. B, C, ventral view of slender and fat forms; the arrow indicates the wide and bright oral field. D, lateral view. E, F, lateral (E) and dorsal (F) views, showing the distribution of the granules; the arrows mark the granule rows near the base of each marginal cirrus, the arrowheads point to the granule rows along with midventral rows, and the double arrowheads mark the granule bands in the gap between the somatic kineties. G, H, showing the cortical granules (arrows), the fibres associated with cirri (arrowheads), and a dorsal cilium (double arrowheads). I, focusing on the oral field; note the paroral membrane (arrowhead) and the endoral membrane (arrow). J, the cortical granules (arrow) near the base of marginal cirri. K, lateral view of the posterior portion; arrows point to the enlarged postoral ventral cirri. L, globular lipid droplets in the cytoplasm. Scale bars: 50 Mm.
Figure 1 in Morphology, morphogenesis, and molecular phylogeny of a new marine urostylid ciliate (Ciliophora, Stichotrichia) from the South China Sea, and a brief overview of the convergent evolution of the midventral pattern within the Spirotrichea
Figure 1. Bergeriella ovata gen. et sp. nov. drawn from life (A–C, E–F) and after impregnation with protargol (D, G–J). A, ventral view of a specimen. B, different body shapes. C, section of the ventral infraciliature, showing the fibres associated with the postoral ventral cirri (double arrowheads) and the obliquely arranged left ventral cirri (arrow). D, distribution of cortical granules (arrow) near the marginal cirri. E, F, distribution of the cortical granules on the ventral (E) and dorsal (F) sides; the arrow indicates the granules along the nonmigratory row, and the arrowheads point to the granular rows along the dorsal kineties. G, left lateral side view of the infraciliature. H–I, ventral (H) and dorsal (I) views of the infraciliature; note the enlarged postoral ventral cirri (dashed lines), the frontal cirri (dashed lines), and the three dorsal kineties (arrows). J, ventral view of an early divider; the arrow indicates the oral primordium of the proter, the arrowheads mark the old endoral membranes in dedifferentiation, and the double arrowhead points to the oral primordium of the opisthe. Abbreviations: AZM, adoral zone of membranelles; BC, buccal cirri; DK, dorsal kineties; EM, endoral membrane; FC, frontal cirri; LMR, left marginal row; LVR, left ventral rows; MVR, midventral rows; NMR, nonmigratory row; PM, paroral membrane; PVR, postoral ventral rows; RMR, right marginal row. Scale bars: 40 Mm (A–C, F–J); 15 Mm (E).
Figure 5 in Morphology, morphogenesis, and molecular phylogeny of a new marine urostylid ciliate (Ciliophora, Stichotrichia) from the South China Sea, and a brief overview of the convergent evolution of the midventral pattern within the Spirotrichea
Figure 5. Photomicrographs of regeneration in Bergeriella ovata gen. et sp. nov. after impregnation with protargol. A, B, ventral views of middle reorganizers, showing the oral primordium (arrow in A), fronto-ventral-transverse (FVT) anlagen (arrowheads), and the anlagen for the nonmigratory row (double arrowhead); the arrow in (B) points to the undulating membrane anlagen. C, a middle-stage reorganizer; the arrow marks the first frontal cirrus generated from the undulating membrane anlagen, and the arrowheads indicate the anlagen for the nonmigratory row. D, dorsal view of the same specimen, showing the anlagen for the left marginal row (arrow) and the dorsal kinety anlagen (arrowheads).
Figure 4 in Morphology, morphogenesis, and molecular phylogeny of a new marine urostylid ciliate (Ciliophora, Stichotrichia) from the South China Sea, and a brief overview of the convergent evolution of the midventral pattern within the Spirotrichea
Figure 4. Photomicrographs of Bergeriella ovata gen. et sp. nov. after impregnation with protargol. A, infraciliature of the ventral posterior portion, showing the nonmigratory row (arrow), the postoral (arrowheads), and the left ventral cirri (double arrowheads). B, infraciliature of an anterior portion, showing the frontal cirri (arrows), buccal cirri (arrowhead), and the undulating membranes (double arrowheads). C, left lateral view, showing the left ventral rows, and the left marginal row (arrow). D, dorsal kineties, in which kinetosomes become more densely spaced from left to right (arrows). E, dorsal view, showing the anterior portion of the nonmigratory row (arrowhead) and the right marginal row (arrow). F, nuclear apparatus, some with replication bands can be seen. G, H, ventral and dorsal views of an early stage divider, showing the undulating membrane anlagen (arrow in G), FVT anlagen (arrowheads), and the anlagen for the nonmigratory row, which come from the posteriormost FVT streak (double arrowheads) of the opisthe. The arrows in (H) indicate the dorsal kineties anlagen. I, early divider showing the appearance of the oral primordium (arrow) and the enlarged macronuclear nodules of the proter. J, separating ellipsoid macronuclear nodules. K, L, ventral views of a late-stage divider (same specimen), showing the developed cirri of the proter (K) and the opisthe (L); the arrows indicate the migrating postoral and left ventral cirri, and the arrowheads indicate the anlagen for the nonmigratory row. M, dorsal view of the same specimen shown in (K) and (L), showing the anlagen of the marginal rows (arrows) and the new dorsal kineties.
Patterns of convergence and bound constraint violation in Differential Evolution on SBOX-COST benchmarking suite
<p>The data sets contain information collected during runs of :</p> <ul> <li>DE/rand/1/bin (D=20, N=50, F=0.5, CR=0.5);</li> <li>L-SHADE(D=20, N_init = 18*D)</li> </ul> <p>on all 24 test functions from instances 1-5 and 101-110 from the SBOX-COST and BBOB test suites.</p> <ul> <li>For the <strong>analysis with fixed budget</strong>, the number of independent runs was 30 and the stopping condition NFE (number of function evaluations) was 5000*D.</li> <li>For the <strong>convergence analysis</strong>, 5 independent runs were used for instances 1-5 of the 24 test functions and there was a combined stopping condition consisting of NFE=10000*D, population size larger than 10, variance of the population greater than 10^(-15) and the difference between the global best optimum and known best greater than 10^(-8).</li> </ul> <p> </p> <p> </p>
Data from: The cutaneous lipid composition of bat wing and tail membranes: a case of convergent evolution with birds
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Data from: Convergent and correlated evolution of major life-history traits in the angiosperm genus Leucadendron (Proteaceae)
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Data from: Convergent evolution of body color between sympatric freshwater fishes via different visual sensory evolution
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Data from: Adaptive processes drive ecomorphological convergent evolution in antwrens (Thamnophilidae)
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Data from: Convergent evolution in floral morphology in a plant ring species, the Caribbean Euphorbia tithymaloides
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Data from: Nuptial gift chemistry reveals convergent evolution correlated with antagonism in mating systems of harvestmen (Arachnida, Opiliones)
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Data from: Convergent evolution of floral shape tied to pollinator shifts in Iochrominae (Solanaceae)
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Data from: The convergent evolution of snake-like forms by divergent evolutionary pathways in squamate reptiles
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Data from: Convergent evolution in the territorial communication of a classic adaptive radiation: Caribbean Anolis lizards
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Data from: Pleiotropic jaw morphology links the evolution of mechanical modularity and functional feeding convergence in Lake Malawi Cichlids
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Data from: Evaluating patterns of convergent evolution and trans-species polymorphism at MHC immunogenes in two sympatric stickleback species
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Data from: Do convergent ecomorphs evolve through convergent morphological pathways? Cranial shape evolution in fossil hyaenids and borophagine canids (Carnivora, Mammalia)
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Data from: Long-term evolution of the natural isolate of Escherichia coli 536 in the mouse gut colonized after maternal transmission reveals convergence in the constitutive expression of the lactose operon.
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Data from: A Burgess Shale mandibulate arthropod with a pygidium – a case of convergent evolution
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Data from: Scale-dependent adaptive evolution and morphological convergence to climatic niche in Californian eriogonoids (Polygonaceae)
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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)
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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.