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377 results for “evolution of complexity”
Estimating ancestral states of complex characters: A case study on the evolution of feathers
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Data from: Complex evolution of insect insulin receptors and homologous decoy receptors, and functional significance of their multiplicity
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Data from: Island biogeography and competition drive rapid venom complexity evolution across rattlesnakes
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Data from: Behavioural vs. physiological adaptation: which contributes more to the evolution of complex traits in a warming climate?
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Data from: Complex dynamics underlie the evolution of imperfect wing pattern convergence in butterflies
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Evolution towards increasing complexity through functional diversification in a protocell model of the RNA world
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Evolution of multiple postzygotic barriers between species of the Mimulus tilingii complex
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Data from: Mechanisms for polyandry evolution in a complex social bee
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Data from: Reticulate evolution within a spruce (Picea) species complex revealed by population genomic analysis
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Data from: Phylogenomic insights into helmet evolution in Neotropical treehoppers (Hemiptera: Membracidae): Conserved morphological complexity across five subfamilies
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Polyploidy promotes divergent evolution across the leaf economics spectrum and plant edaphic niche in the Dianthus broteri complex
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Data from: Large-scale mutation in the evolution of a gene complex for cryptic coloration
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Data from: Rapid phenotypic evolution following shifts in life cycle complexity
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Complex reticulate evolution of the speckled brush-furred rats (Lophuromys) in the Ethiopian centre of endemism
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The role of secondary pollinators in the evolution of complex colour signals in a bimodal pollination system
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The evolution of C4 photosynthesis in Flaveria (Asteraceae): Insights from the Flaveria linearis complex
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Eco‐evolutionary dynamics driven by fishing: from single species models to dynamic evolution within complex food webs
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Data from: Modifications during early plant development promote the evolution of nature’s most complex woods
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Diversification of a polyploid complex: the biogeography and acoustic communication evolution of North American gray treefrogs throughout the Quaternary
<p>Polyploid speciation and whole genome duplications are major drivers of biological diversity. After polyploid species are formed, the interactions between diploid and polyploid lineages may generate additional diversity in novel cytotypes and phenotypes. In anurans, mate choice by acoustic communication is the primary method by which individuals identify their own species and assess suitable mates. As such, the evolution of acoustic signals is an important mechanism for contributing to reproductive isolation and diversification in this group. The North American gray treefrog complex, consisting of the diploid Hyla chrysoscelis and the tetraploid Hyla versicolor, has long been used to study reproductive isolation and research on this system has consistently driven this field forward. Here, we estimate the biogeographic history of this group, focusing specifically on the geographic origin of whole genome duplication and the expansion of lineages out of refugia following climate oscillations and retreats of the Laurentide ice sheet. We then test for lineage-specific differences in mating signals by applying comparative methods to a large acoustic data set collected over 52 years that includes >1500 individual frogs. Finally, we expand upon our results in light of recent estimates of the complex's genomic evolution to describe the history of diversification in gray treefrogs throughout the Quaternary.</p>
Data from: Divergence in coloration and the evolution of reproductive isolation in the Anolis marmoratus species complex
Adaptive divergence in coloration is expected to produce reproductive isolation in species that use colorful signals in mate choice and species recognition. Indeed, many adaptive radiations are characterized by differentiation in colorful signals, suggesting that divergent selection acting on coloration may be an important component of speciation. Populations in the Anolis marmoratus species complex from the Caribbean island of Guadeloupe display striking divergence in adult male color and pattern that occurs over small geographic distances, suggesting strong divergent selection. Here we test the hypothesis that coloration is locally adaptive and is linked to reduced gene flow among populations. We quantify variation in adult male coloration across a habitat gradient between mesic and xeric habitats, use a multilocus coalescent approach to infer historical demographic parameters of divergence, and examine gene flow and population structure using microsatellite variation. We find that color variation evolved without geographic isolation and in the face of rampant gene flow, consistent with strong divergent selection, and that both ecological and sexual selection are implicated. However, we find no significant differentiation at microsatellite loci across populations, suggesting little reproductive isolation and high levels of contemporary gene exchange. Strong divergent selection on loci affecting coloration likely maintains clinal phenotypic variation despite high gene flow at neutral loci, supporting the notion of a porous genome in which adaptive portions of the genome remain fixed while neutral portions are homogenized by gene flow and recombination. We discuss the impact of these findings for studies of color evolution and ecological 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.