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6 results for “local maladaptation”
Data from: Genetic, phenotypic, and environmental drivers of local adaptation and climate-change induced maladaptation in yellow warblers
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Data from: On the equivalence of host local adaptation and parasite maladaptation: an experimental test
In spatio-temporally varying environments, host-parasite coevolution may lead to either host or parasite local adaptation. Using reciprocal infestations over 11 pairs of plots, we tested local adaptation in the hen flea and its main host, the great tit. Flea reproductive success (number of adult at host fledging) was lower on host individuals from the same plot compared to foreign hosts (from another plot), revealing flea local maladaptation. Host reproductive success (number of fledged young) was lower for nests infested by foreign fleas compared to controls, with an intermediate success for nests infested by local fleas. This suggests host local adaptation although the absence of local adaptation could not be excluded. However, fledglings were heavier and larger when reared with foreign compared to local fleas, which could also indicate host local maladaptation if the fitness gain in offspring size offsets the potential cost in offspring number. Our results therefore challenge the traditional view that parasite local maladaptation is equivalent to host local adaptation. The differences in fledgling morphology between nests infested with local and foreign fleas suggest that flea origin affects host resource allocation strategy between nestling growth and defense against parasites. Therefore determining the mechanisms that underlie these local adaptation patterns requires the identification of the relevant fitness measures and life-history trade-offs in both species.
Data from: On the equivalence of host local adaptation and parasite maladaptation: an experimental test
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Individual genotypes of 1 416 brook trout genotyped at 14 779 high-quality SNPs for studying local adaptation and maladaptation in small populations
<p><span><span><span><span><span><span><span><span><span><span><span>Investigating the relative importance of neutral <i>versus</i> selective processes governing the accumulation of genetic variants is a key goal in both evolutionary and conservation biology. This is particularly true in the context of small populations, where genetic drift can counteract the effect of selection. Using Brook Charr (<i>Salvelinus fontinalis</i>) from Québec, Canada as a case study, we investigated the importance of demographic <i>versus</i> selective processes governing the accumulation of both adaptive and maladaptive mutations in closed <i>versus</i> open and connected populations to assess gene flow effect. This was achieved by using 14 779 high-quality filtered SNPs genotyped among 1 416 fish representing 50 populations from three life history types: lacustrine (closed populations), riverine and anadromous (connected populations). Using the Provean algorithm, we observed a considerable accumulation of putative deleterious mutations across populations. The absence of correlation between the occurrence of putatively beneficial or deleterious mutations and local recombination rate supports the hypothesis that genetic drift might be the main driver of the accumulation of such variants. However, despite a lower genetic diversity observed in lacustrine than in riverine or anadromous populations, lacustrine populations do not exhibit more deleterious mutations than the two other history types, suggesting that the negative effect of genetic drift in lacustrine populations may be mitigated by that of relaxed purifying selection. Moreover, we also identified genomic regions associated with anadromy, as well as an overrepresentation of transposable elements associated with variation in environmental variables, thus supporting the importance of transposable elements in adaptation. </span></span></span></span></span></span></span></span></span></span></span></p>
Data from: Local adaptation interacts with expansion load during range expansion: maladaptation reduces expansion load
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Individual genotypes of 1 416 brook trout genotyped at 14 779 high-quality SNPs for studying local adaptation and maladaptation in small populations
Open the record for dataset details and reuse information.
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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.